chamilo / chamilo-lms

main/inc/lib/document.lib.php

Indentation -1 removed lines

@@ -16,7 +16,6 @@
  * @author Patrick Cool
  * @author René Haentjens, added CSV file import (October 2004)
  * @package chamilo.link
-
  */
 
 // Including libraries

Spacing +331 added lines, -331 removed lines

@@ -290,7 +290,7 @@ 
             return true;
         } else {
             $tbl_document = Database::get_course_table(TABLE_DOCUMENT);
-            $tbl_item_property = $this_course . 'item_property';
+            $tbl_item_property = $this_course.'item_property';
             $doc_url = Database::escape_string($doc_url);
             $query = "SELECT 1 FROM $tbl_document AS docs,$tbl_item_property AS props
                       WHERE
@@ -340,18 +340,18 @@ 
             }
 
             header('Content-type: application/octet-stream');
-            header('Content-length: ' . $len);
+            header('Content-length: '.$len);
             if (preg_match("/MSIE 5.5/", $_SERVER['HTTP_USER_AGENT'])) {
-                header('Content-Disposition: filename= ' . $filename);
+                header('Content-Disposition: filename= '.$filename);
             } else {
-                header('Content-Disposition: attachment; filename= ' . $filename);
+                header('Content-Disposition: attachment; filename= '.$filename);
             }
             if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE')) {
                 header('Pragma: ');
                 header('Cache-Control: ');
                 header('Cache-Control: public'); // IE cannot download from sessions without a cache
             }
-            header('Content-Description: ' . $filename);
+            header('Content-Description: '.$filename);
             header('Content-Transfer-Encoding: binary');
 
             $res = fopen($full_file_name, 'r');
@@ -378,7 +378,7 @@ 
                     } else {
                         $encoding = @api_detect_encoding_html(file_get_contents($full_file_name));
                         if (!empty($encoding)) {
-                            $content_type .= '; charset=' . $encoding;
+                            $content_type .= '; charset='.$encoding;
                         }
                     }
                     break;
@@ -388,7 +388,7 @@ 
                     } else {
                         $encoding = @api_detect_encoding(strip_tags(file_get_contents($full_file_name)));
                         if (!empty($encoding)) {
-                            $content_type .= '; charset=' . $encoding;
+                            $content_type .= '; charset='.$encoding;
                         }
                     }
                     break;
@@ -397,13 +397,13 @@ 
                     header('Content-type: application/octet-stream');
                     break;
             }
-            header('Content-type: ' . $content_type);
-            header('Content-Length: ' . $len);
+            header('Content-type: '.$content_type);
+            header('Content-Length: '.$len);
             $user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
             if (strpos($user_agent, 'msie')) {
-                header('Content-Disposition: ; filename= ' . $filename);
+                header('Content-Disposition: ; filename= '.$filename);
             } else {
-                header('Content-Disposition: inline; filename= ' . $filename);
+                header('Content-Disposition: inline; filename= '.$filename);
             }
 
             if ($fixLinksHttpToHttps) {
@@ -444,18 +444,18 @@ 
 
             header('Content-type: application/octet-stream');
             //header('Content-Type: application/force-download');
-            header('Content-length: ' . $len);
+            header('Content-length: '.$len);
             if (preg_match("/MSIE 5.5/", $_SERVER['HTTP_USER_AGENT'])) {
-                header('Content-Disposition: filename= ' . $filename);
+                header('Content-Disposition: filename= '.$filename);
             } else {
-                header('Content-Disposition: attachment; filename= ' . $filename);
+                header('Content-Disposition: attachment; filename= '.$filename);
             }
             if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE')) {
                 header('Pragma: ');
                 header('Cache-Control: ');
                 header('Cache-Control: public'); // IE cannot download from sessions without a cache
             }
-            header('Content-Description: ' . $filename);
+            header('Content-Description: '.$filename);
             header('Content-transfer-encoding: binary');
             echo $full_string;
 
@@ -468,30 +468,30 @@ 
 
             $content_type = self::file_get_mime_type($filename);
             header('Expires: Wed, 01 Jan 1990 00:00:00 GMT');
-            header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
+            header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
             header('Cache-Control: no-cache, must-revalidate');
             header('Pragma: no-cache');
             switch ($content_type) {
                 case 'text/html':
                     $encoding = @api_detect_encoding_html($full_string);
                     if (!empty($encoding)) {
-                        $content_type .= '; charset=' . $encoding;
+                        $content_type .= '; charset='.$encoding;
                     }
                     break;
                 case 'text/plain':
                     $encoding = @api_detect_encoding(strip_tags($full_string));
                     if (!empty($encoding)) {
-                        $content_type .= '; charset=' . $encoding;
+                        $content_type .= '; charset='.$encoding;
                     }
                     break;
             }
-            header('Content-type: ' . $content_type);
-            header('Content-Length: ' . $len);
+            header('Content-type: '.$content_type);
+            header('Content-Length: '.$len);
             $user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
             if (strpos($user_agent, 'msie')) {
-                header('Content-Disposition: ; filename= ' . $filename);
+                header('Content-Disposition: ; filename= '.$filename);
             } else {
-                header('Content-Disposition: inline; filename= ' . $filename);
+                header('Content-Disposition: inline; filename= '.$filename);
             }
             echo($full_string);
             //You have to ensure that the calling script then stops processing (exit();)
@@ -584,9 +584,9 @@ 
             if (!empty($students)) {
                 $conditionList = array();
                 foreach ($students as $studentId => $studentInfo) {
-                    $conditionList[] = '/shared_folder/sf_user_' . $studentInfo['user_id'];
+                    $conditionList[] = '/shared_folder/sf_user_'.$studentInfo['user_id'];
                 }
-                $sharedCondition .= ' AND docs.path IN ("' . implode('","', $conditionList) . '")';
+                $sharedCondition .= ' AND docs.path IN ("'.implode('","', $conditionList).'")';
             }
         }
 
@@ -612,8 +612,8 @@ 
                     last.c_id = {$_course['real_id']}
                 )
                 WHERE
-                    docs.path LIKE '" . Database::escape_string($path . $added_slash.'%'). "' AND
-                    docs.path NOT LIKE '" . Database::escape_string($path . $added_slash.'%/%')."' AND
+                    docs.path LIKE '".Database::escape_string($path.$added_slash.'%')."' AND
+                    docs.path NOT LIKE '" . Database::escape_string($path.$added_slash.'%/%')."' AND
                     docs.path NOT LIKE '%_DELETED_%' AND
                     $userGroupFilter AND
                     last.visibility $visibility_bit
@@ -654,7 +654,7 @@ 
                     $table_template = Database::get_main_table(TABLE_MAIN_TEMPLATES);
                     $sql = "SELECT id FROM $table_template
                             WHERE
-                                course_code = '" . $_course['code'] . "' AND
+                                course_code = '".$_course['code']."' AND
                                 user_id = '".api_get_user_id()."' AND
                                 ref_doc = '".$row['id']."'";
                     $template_result = Database::query($sql);
@@ -764,7 +764,7 @@ 
         if (!empty($students)) {
             $conditionList = array();
             foreach ($students as $studentId => $studentInfo) {
-                $conditionList[] = '/shared_folder/sf_user_' . $studentInfo['user_id'];
+                $conditionList[] = '/shared_folder/sf_user_'.$studentInfo['user_id'];
             }
         }
 
@@ -788,7 +788,7 @@ 
                        INNER JOIN $TABLE_DOCUMENT  AS docs
                        ON (
                             docs.id = last.ref AND
-                            last.tool = '" . TOOL_DOCUMENT . "' AND
+                            last.tool = '".TOOL_DOCUMENT."' AND
                             last.c_id = {$_course['real_id']} AND
                             docs.c_id = {$_course['real_id']}
                        )
@@ -805,7 +805,7 @@ 
                         INNER JOIN $TABLE_DOCUMENT  AS docs
                         ON (
                             docs.id = last.ref AND
-                            last.tool = '" . TOOL_DOCUMENT . "' AND
+                            last.tool = '".TOOL_DOCUMENT."' AND
                             last.c_id = {$_course['real_id']} AND
                             docs.c_id = {$_course['real_id']}
                         )
@@ -852,7 +852,7 @@ 
                     WHERE
                         docs.id = last.ref AND
                         docs.filetype = 'folder' AND
-                        last.tool = '" . TOOL_DOCUMENT . "' AND
+                        last.tool = '".TOOL_DOCUMENT."' AND
                         $groupCondition AND
                         last.visibility = 1
                         $condition_session AND
@@ -873,7 +873,7 @@ 
                     WHERE
                         docs.id = last.ref AND
                         docs.filetype = 'folder' AND
-                        last.tool = '" . TOOL_DOCUMENT . "' AND
+                        last.tool = '".TOOL_DOCUMENT."' AND
                         $groupCondition AND
                         last.visibility = 0 $condition_session AND
                         last.c_id = {$_course['real_id']} AND
@@ -889,9 +889,9 @@ 
                         FROM $TABLE_ITEMPROPERTY AS last, $TABLE_DOCUMENT AS docs
                         WHERE
                             docs.id = last.ref AND
-                            docs.path LIKE '" . Database::escape_string($row['path'].'/%') . "' AND
+                            docs.path LIKE '".Database::escape_string($row['path'].'/%')."' AND
                             docs.filetype = 'folder' AND
-                            last.tool = '" . TOOL_DOCUMENT . "' AND
+                            last.tool = '" . TOOL_DOCUMENT."' AND
                             $groupCondition AND
                             last.visibility = 1 $condition_session AND
                             last.c_id = {$_course['real_id']} AND
@@ -968,7 +968,7 @@ 
                                 tp.c_id = $course_id AND
                                 td.session_id = $sessionId AND
                                 tp.ref= td.id AND
-                                (path='" . $path . "' OR path LIKE BINARY '" . $path . "/%' ) ";
+                                (path='".$path."' OR path LIKE BINARY '".$path."/%' ) ";
                     // Get all id's of documents that are deleted
                     $what_to_check_result = Database::query($sql);
 
@@ -1311,7 +1311,7 @@ 
             $res = Database::query($sql);
             if (Database::num_rows($res) > 0) {
                 $row2 = Database::fetch_array($res);
-                require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
+                require_once api_get_path(LIBRARY_PATH).'search/ChamiloIndexer.class.php';
                 $di = new ChamiloIndexer();
                 $di->remove_document((int) $row2['search_did']);
             }
@@ -1320,7 +1320,7 @@ 
             Database::query($sql);
 
             // remove terms from db
-            require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
+            require_once api_get_path(LIBRARY_PATH).'specific_fields_manager.lib.php';
             delete_all_values_for_item($course_id, TOOL_DOCUMENT, $document_id);
         }
     }
@@ -1408,12 +1408,12 @@ 
             $path = str_replace('%2F', '/', $url_path);
             $pathinfo = pathinfo($row['path']);
 
-            $row['url'] = api_get_path(WEB_CODE_PATH) . 'document/showinframes.php?cidReq=' . $course_code . '&id=' . $id;
-            $row['document_url'] = api_get_path(WEB_CODE_PATH) . 'document/document.php?cidReq=' . $course_code . '&id=' . $id;
-            $row['absolute_path'] = api_get_path(SYS_COURSE_PATH) . $course_info['path'] . '/document' . $row['path'];
-            $row['absolute_path_from_document'] = '/document' . $row['path'];
-            $row['absolute_parent_path'] = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/document'.$pathinfo['dirname'] . '/';
-            $row['direct_url'] = $www . $path;
+            $row['url'] = api_get_path(WEB_CODE_PATH).'document/showinframes.php?cidReq='.$course_code.'&id='.$id;
+            $row['document_url'] = api_get_path(WEB_CODE_PATH).'document/document.php?cidReq='.$course_code.'&id='.$id;
+            $row['absolute_path'] = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/document'.$row['path'];
+            $row['absolute_path_from_document'] = '/document'.$row['path'];
+            $row['absolute_parent_path'] = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/document'.$pathinfo['dirname'].'/';
+            $row['direct_url'] = $www.$path;
 
             if (dirname($row['path']) == '.') {
                 $row['parent_id'] = '0';
@@ -1432,7 +1432,7 @@ 
                 $real_dir = '';
 
                 for ($i = 1; $i < $array_len; $i++) {
-                    $real_dir .= '/' . (isset($dir_array[$i]) ? $dir_array[$i] : '');
+                    $real_dir .= '/'.(isset($dir_array[$i]) ? $dir_array[$i] : '');
                     $parent_id = self::get_document_id($course_info, $real_dir);
                     if ($session_id != 0 && empty($parent_id)) {
                         $parent_id = self::get_document_id($course_info, $real_dir, 0);
@@ -1506,21 +1506,21 @@ 
         $user_id = intval($user_id);
         $document_id = intval($document_id);
 
-        $sql = 'SELECT id FROM ' . $table_template . '
+        $sql = 'SELECT id FROM '.$table_template.'
                 WHERE
-                    course_code="' . $course_code . '" AND
-                    user_id="' . $user_id . '" AND
-                    ref_doc="' . $document_id . '"';
+                    course_code="' . $course_code.'" AND
+                    user_id="' . $user_id.'" AND
+                    ref_doc="' . $document_id.'"';
         $result = Database::query($sql);
         $template_id = Database::result($result, 0, 0);
 
-        my_delete(api_get_path(SYS_CODE_PATH) . 'upload/template_thumbnails/' . $template_id . '.jpg');
+        my_delete(api_get_path(SYS_CODE_PATH).'upload/template_thumbnails/'.$template_id.'.jpg');
 
-        $sql = 'DELETE FROM ' . $table_template . '
+        $sql = 'DELETE FROM '.$table_template.'
                 WHERE
-                    course_code="' . $course_code . '" AND
-                    user_id="' . $user_id . '" AND
-                    ref_doc="' . $document_id . '"';
+                    course_code="' . $course_code.'" AND
+                    user_id="' . $user_id.'" AND
+                    ref_doc="' . $document_id.'"';
 
         Database::query($sql);
     }
@@ -1581,7 +1581,7 @@ 
                 INNER JOIN $propTable ip
                 ON (d.id = ip.ref AND d.c_id  = $course_id AND ip.c_id = $course_id)
         		WHERE
-        		    ip.tool = '" . TOOL_DOCUMENT . "' $condition AND
+        		    ip.tool = '".TOOL_DOCUMENT."' $condition AND
         			filetype = '$file_type' AND
         			locate(concat(path,'/'), '$doc_path')=1
                 ";
@@ -1745,12 +1745,12 @@ 
         if (empty($session_id)) {
             $sql_session = 'AND (session_id = 0 OR isnull(session_id)) ';
         } elseif ($session_id > 0) {
-            $sql_session = 'AND session_id=' . intval($session_id);
+            $sql_session = 'AND session_id='.intval($session_id);
         } else {
             $sql_session = '';
         }
-        $sql = 'UPDATE ' . $tbl_category . ' SET document_id="' . intval($document_id) . '"
-                WHERE course_code="' . Database::escape_string($course_id) . '" ' . $sql_session;
+        $sql = 'UPDATE '.$tbl_category.' SET document_id="'.intval($document_id).'"
+                WHERE course_code="' . Database::escape_string($course_id).'" '.$sql_session;
         Database::query($sql);
     }
 
@@ -1772,12 +1772,12 @@ 
         if (empty($session_id)) {
             $sql_session = 'AND (session_id = 0 OR isnull(session_id)) ';
         } elseif ($session_id > 0) {
-            $sql_session = 'AND session_id=' . intval($session_id);
+            $sql_session = 'AND session_id='.intval($session_id);
         } else {
             $sql_session = '';
         }
-        $sql = 'SELECT document_id FROM ' . $tbl_category . '
-                WHERE course_code="' . Database::escape_string($course_id) . '" ' . $sql_session;
+        $sql = 'SELECT document_id FROM '.$tbl_category.'
+                WHERE course_code="' . Database::escape_string($course_id).'" '.$sql_session;
 
         $rs = Database::query($sql);
         $num = Database::num_rows($rs);
@@ -1818,7 +1818,7 @@ 
             $all_user_info = array();
             if (Database::num_rows($rs)) {
                 $row = Database::fetch_array($rs);
-                $filepath = api_get_path(SYS_COURSE_PATH) . $course_info['path'] . '/document' . $row['path'];
+                $filepath = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/document'.$row['path'];
                 if (is_file($filepath)) {
                     $my_content_html = file_get_contents($filepath);
                 }
@@ -1901,9 +1901,9 @@ 
             $date_no_time = api_convert_and_format_date(api_get_utc_datetime(), DATE_FORMAT_LONG_NO_DAY);
         }
 
-        $url = api_get_path(WEB_PATH) . 'certificates/index.php?id=' . $info_grade_certificate['id'];
+        $url = api_get_path(WEB_PATH).'certificates/index.php?id='.$info_grade_certificate['id'];
 
-        $externalStyleFile = api_get_path(SYS_CSS_PATH) . 'themes/' . api_get_visual_theme() . '/certificate.css';
+        $externalStyleFile = api_get_path(SYS_CSS_PATH).'themes/'.api_get_visual_theme().'/certificate.css';
         $externalStyle = '';
 
         if (is_file($externalStyleFile)) {
@@ -1925,7 +1925,7 @@ 
             $course_info['name'],
             $info_grade_certificate['grade'],
             $url,
-            '<a href="' . $url . '" target="_blank">' . get_lang('CertificateOnlineLink') . '</a>',
+            '<a href="'.$url.'" target="_blank">'.get_lang('CertificateOnlineLink').'</a>',
             '((certificate_barcode))',
             $externalStyle
         );
@@ -1951,7 +1951,7 @@ 
         if (!empty($extraFields)) {
             foreach ($extraFields as $extraField) {
                 $valueExtra = isset($extra_user_info_data[$extraField['variable']]) ? $extra_user_info_data[$extraField['variable']] : '';
-                $info_to_be_replaced_in_content_html[] = '((' . strtolower($extraField['variable']) . '))';
+                $info_to_be_replaced_in_content_html[] = '(('.strtolower($extraField['variable']).'))';
                 $info_to_replace_in_content_html[] = $valueExtra;
             }
         }
@@ -1979,17 +1979,17 @@ 
             $tbl_category = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
             $session_id = api_get_session_id();
             if ($session_id == 0 || is_null($session_id)) {
-                $sql_session = 'AND (session_id=' . intval($session_id) . ' OR isnull(session_id)) ';
+                $sql_session = 'AND (session_id='.intval($session_id).' OR isnull(session_id)) ';
             } elseif ($session_id > 0) {
-                $sql_session = 'AND session_id=' . intval($session_id);
+                $sql_session = 'AND session_id='.intval($session_id);
             } else {
                 $sql_session = '';
             }
 
-            $sql = 'UPDATE ' . $tbl_category . ' SET document_id=null
+            $sql = 'UPDATE '.$tbl_category.' SET document_id=null
                     WHERE
-                        course_code = "' . Database::escape_string($course_id) . '" AND
-                        document_id="' . $default_certificate_id . '" ' . $sql_session;
+                        course_code = "' . Database::escape_string($course_id).'" AND
+                        document_id="' . $default_certificate_id.'" '.$sql_session;
             Database::query($sql);
         }
     }
@@ -2005,10 +2005,10 @@ 
         if (!empty($courseInfo)) {
             $to_group_id = 0;
             $to_user_id = null;
-            $course_dir = $courseInfo['path'] . "/document/";
+            $course_dir = $courseInfo['path']."/document/";
             $sys_course_path = api_get_path(SYS_COURSE_PATH);
-            $base_work_dir = $sys_course_path . $course_dir;
-            $base_work_dir_test = $base_work_dir . 'certificates';
+            $base_work_dir = $sys_course_path.$course_dir;
+            $base_work_dir_test = $base_work_dir.'certificates';
             $dir_name = '/certificates';
             $post_dir_name = get_lang('CertificatesFiles');
             $visibility_command = 'invisible';
@@ -2235,9 +2235,9 @@ 
                                             //$new_abs_path = realpath($dir.'/'.$second_part);
                                             $dir = '';
                                             if (!empty($abs_path)) {
-                                                $dir = dirname($abs_path) . '/';
+                                                $dir = dirname($abs_path).'/';
                                             }
-                                            $new_abs_path = realpath($dir . $second_part);
+                                            $new_abs_path = realpath($dir.$second_part);
                                             $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
                                             if (count($in_files_list) > 0) {
                                                 $files_list = array_merge($files_list, $in_files_list);
@@ -2250,9 +2250,9 @@ 
                                             $files_list[] = array($second_part, 'local', 'rel');
                                             $dir = '';
                                             if (!empty($abs_path)) {
-                                                $dir = dirname($abs_path) . '/';
+                                                $dir = dirname($abs_path).'/';
                                             }
-                                            $new_abs_path = realpath($dir . $second_part);
+                                            $new_abs_path = realpath($dir.$second_part);
                                             $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
                                             if (count($in_files_list) > 0) {
                                                 $files_list = array_merge($files_list, $in_files_list);
@@ -2286,9 +2286,9 @@ 
                                             $files_list[] = array($source, 'local', 'rel');
                                             $dir = '';
                                             if (!empty($abs_path)) {
-                                                $dir = dirname($abs_path) . '/';
+                                                $dir = dirname($abs_path).'/';
                                             }
-                                            $new_abs_path = realpath($dir . $source);
+                                            $new_abs_path = realpath($dir.$source);
                                             $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
                                             if (count($in_files_list) > 0) {
                                                 $files_list = array_merge($files_list, $in_files_list);
@@ -2301,9 +2301,9 @@ 
                                             $files_list[] = array($source, 'local', 'rel');
                                             $dir = '';
                                             if (!empty($abs_path)) {
-                                                $dir = dirname($abs_path) . '/';
+                                                $dir = dirname($abs_path).'/';
                                             }
-                                            $new_abs_path = realpath($dir . $source);
+                                            $new_abs_path = realpath($dir.$source);
                                             $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
                                             if (count($in_files_list) > 0) {
                                                 $files_list = array_merge($files_list, $in_files_list);
@@ -2337,9 +2337,9 @@ 
                                     $files_list[] = array($source, 'local', 'rel');
                                     $dir = '';
                                     if (!empty($abs_path)) {
-                                        $dir = dirname($abs_path) . '/';
+                                        $dir = dirname($abs_path).'/';
                                     }
-                                    $new_abs_path = realpath($dir . $source);
+                                    $new_abs_path = realpath($dir.$source);
                                     $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
                                     if (count($in_files_list) > 0) {
                                         $files_list = array_merge($files_list, $in_files_list);
@@ -2352,9 +2352,9 @@ 
                                     $files_list[] = array($source, 'local', 'rel');
                                     $dir = '';
                                     if (!empty($abs_path)) {
-                                        $dir = dirname($abs_path) . '/';
+                                        $dir = dirname($abs_path).'/';
                                     }
-                                    $new_abs_path = realpath($dir . $source);
+                                    $new_abs_path = realpath($dir.$source);
                                     $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
                                     if (count($in_files_list) > 0) {
                                         $files_list = array_merge($files_list, $in_files_list);
@@ -2413,24 +2413,24 @@ 
             // then possible closing brackets if we were in the opening bracket case
             // OR something like @import()
             $res = preg_match_all(
-                '/(((([A-Za-z_:])([A-Za-z0-9_:\.-]*))' .
+                '/(((([A-Za-z_:])([A-Za-z0-9_:\.-]*))'.
                 // '/(((([A-Za-z_:])([A-Za-z0-9_:\.-]|[^\x00-\x7F])*)' . -> seems to be taking too much
                 // '/(((([A-Za-z_:])([^\x00-\x7F])*)' . -> takes only last letter of parameter name
-                '([ \n\t\r]+)?(' .
+                '([ \n\t\r]+)?('.
                 // '(=([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+))' . -> doesn't restrict close enough to the url itself
-                '(=([ \n\t\r]+)?("[^"\)]+"|\'[^\'\)]+\'|[^ \n\t\r\)]+))' .
-                '|' .
+                '(=([ \n\t\r]+)?("[^"\)]+"|\'[^\'\)]+\'|[^ \n\t\r\)]+))'.
+                '|'.
                 // '(\(([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)\))' . -> doesn't restrict close enough to the url itself
-                '(\(([ \n\t\r]+)?("[^"\)]+"|\'[^\'\)]+\'|[^ \n\t\r\)]+)\))' .
-                '))' .
-                '|' .
+                '(\(([ \n\t\r]+)?("[^"\)]+"|\'[^\'\)]+\'|[^ \n\t\r\)]+)\))'.
+                '))'.
+                '|'.
                 // '(@import([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)))?/', -> takes a lot (like 100's of thousands of empty possibilities)
                 '(@import([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)))/',
                 $attrString,
                 $regs
             );
         } catch (Exception $e) {
-            error_log('Caught exception: ' . $e->getMessage(), 0);
+            error_log('Caught exception: '.$e->getMessage(), 0);
         }
         if ($res) {
             for ($i = 0; $i < count($regs[1]); $i++) {
@@ -2508,14 +2508,14 @@ 
                 $orig_course_info_path = $origin_course_info_path;
             }
         } else {
-            $orig_course_path = api_get_path(SYS_COURSE_PATH).$orig_course_info['path'] . '/';
+            $orig_course_path = api_get_path(SYS_COURSE_PATH).$orig_course_info['path'].'/';
             $orig_course_info_path = $orig_course_info['path'];
         }
 
         $destination_course_code = CourseManager::get_course_id_from_path($destination_course_directory);
         $destination_course_info = api_get_course_info($destination_course_code);
-        $dest_course_path = api_get_path(SYS_COURSE_PATH) . $destination_course_directory . '/';
-        $dest_course_path_rel = api_get_path(REL_COURSE_PATH) . $destination_course_directory . '/';
+        $dest_course_path = api_get_path(SYS_COURSE_PATH).$destination_course_directory.'/';
+        $dest_course_path_rel = api_get_path(REL_COURSE_PATH).$destination_course_directory.'/';
 
         $user_id = api_get_user_id();
 
@@ -2524,7 +2524,7 @@ 
 
                 // Get information about source url
                 $real_orig_url = $source[0]; // url
-                $scope_url = $source[1];   // scope (local, remote)
+                $scope_url = $source[1]; // scope (local, remote)
                 $type_url = $source[2]; // type (rel, abs, url)
 
                 // Get path and query from origin url
@@ -2536,7 +2536,7 @@ 
                 $dest_url_query = '';
 
                 if (!empty($real_orig_query)) {
-                    $dest_url_query = '?' . $real_orig_query;
+                    $dest_url_query = '?'.$real_orig_query;
                     if (strpos($dest_url_query, $origin_course_code) !== false) {
                         $dest_url_query = str_replace($origin_course_code, $destination_course_code, $dest_url_query);
                     }
@@ -2617,7 +2617,7 @@ 
 
                                 //$destination_url = $url_course_path . $destination_course_directory . '/' . $document_file . $dest_url_query;
                                 // See BT#7780
-                                $destination_url = $dest_course_path_rel . $document_file . $dest_url_query;
+                                $destination_url = $dest_course_path_rel.$document_file.$dest_url_query;
 
                                 // If the course code doesn't exist in the path? what we do? Nothing! see BT#1985
                                 if (strpos($real_orig_path, $origin_course_code) === false) {
@@ -2652,14 +2652,14 @@ 
     public function replace_urls_inside_content_html_when_moving_file($file_name, $original_path, $destiny_path)
     {
         if (substr($original_path, strlen($original_path) - 1, strlen($original_path)) == '/') {
-            $original = $original_path . $file_name;
+            $original = $original_path.$file_name;
         } else {
-            $original = $original_path . '/' . $file_name;
+            $original = $original_path.'/'.$file_name;
         }
         if (substr($destiny_path, strlen($destiny_path) - 1, strlen($destiny_path)) == '/') {
-            $destination = $destiny_path . $file_name;
+            $destination = $destiny_path.$file_name;
         } else {
-            $destination = $destiny_path . '/' . $file_name;
+            $destination = $destiny_path.'/'.$file_name;
         }
         $original_count = count(explode('/', $original));
         $destination_count = count(explode('/', $destination));
@@ -2673,8 +2673,8 @@ 
             $mode = 'inside';
         }
         //We do not select the $original_path becayse the file was already moved
-        $content_html = file_get_contents($destiny_path . '/' . $file_name);
-        $destination_file = $destiny_path . '/' . $file_name;
+        $content_html = file_get_contents($destiny_path.'/'.$file_name);
+        $destination_file = $destiny_path.'/'.$file_name;
 
         $pre_original = strstr($original_path, 'document');
         $pre_destin = strstr($destiny_path, 'document');
@@ -2696,11 +2696,11 @@ 
         }
 
         if ($pre_original != '') {
-            $pre_original = '..' . $pre_original . '/';
+            $pre_original = '..'.$pre_original.'/';
         }
 
         if ($pre_destin != '') {
-            $pre_destin = '..' . $pre_destin . '/';
+            $pre_destin = '..'.$pre_destin.'/';
         }
 
         $levels = explode('/', $pre_original);
@@ -2718,7 +2718,7 @@ 
         //echo '$count_pre_destination_levels '. $count_pre_destination_levels;
         $pre_remove = '';
         for ($i = 1; $i <= $count_pre_destination_levels; $i++) {
-            $pre_remove .='..\/';
+            $pre_remove .= '..\/';
         }
 
         $orig_source_html = DocumentManager::get_resources_from_source_html($content_html);
@@ -2726,9 +2726,9 @@ 
         foreach ($orig_source_html as $source) {
 
             // get information about source url
-            $real_orig_url = $source[0];   // url
-            $scope_url = $source[1];   // scope (local, remote)
-            $type_url = $source[2];   // tyle (rel, abs, url)
+            $real_orig_url = $source[0]; // url
+            $scope_url = $source[1]; // scope (local, remote)
+            $type_url = $source[2]; // tyle (rel, abs, url)
             // Get path and query from origin url
             $orig_parse_url = parse_url($real_orig_url);
             $real_orig_path = $orig_parse_url['path'];
@@ -2755,11 +2755,11 @@ 
                         $real_orig_url_temp = '';
                         if ($mode == 'inside') {
                             $real_orig_url_temp = str_replace('../', '', $real_orig_url);
-                            $destination_url = $link_to_add . $real_orig_url_temp;
+                            $destination_url = $link_to_add.$real_orig_url_temp;
                         } else {
                             $real_orig_url_temp = $real_orig_url;
 
-                            $destination_url = preg_replace("/" . $pre_remove . "/", '', $real_orig_url, 1);
+                            $destination_url = preg_replace("/".$pre_remove."/", '', $real_orig_url, 1);
                         }
                         if ($real_orig_url == $destination_url) {
                             //echo 'continue2';
@@ -2785,7 +2785,7 @@ 
     {
         $course_data = api_get_course_info($course_code);
         $document_data = self::get_document_data_by_id($document_id, $course_code);
-        $file_path = api_get_path(SYS_COURSE_PATH) . $course_data['path'] . '/document' . $document_data['path'];
+        $file_path = api_get_path(SYS_COURSE_PATH).$course_data['path'].'/document'.$document_data['path'];
         $pdf = new PDF('A4-L', 'L');
         $pdf->html_to_pdf($file_path, $document_data['title'], $course_code);
     }
@@ -2818,9 +2818,9 @@ 
     ) {
         $course_info = api_get_course_info();
         $sessionId = api_get_session_id();
-        $course_dir = $course_info['path'] . '/document';
+        $course_dir = $course_info['path'].'/document';
         $sys_course_path = api_get_path(SYS_COURSE_PATH);
-        $base_work_dir = $sys_course_path . $course_dir;
+        $base_work_dir = $sys_course_path.$course_dir;
 
         if (isset($files[$fileKey])) {
             $upload_ok = process_uploaded_file($files[$fileKey], $show_output);
@@ -3007,7 +3007,7 @@ 
         }
         if (isset($output)) {
             foreach ($output as & $line) {
-                $content .= $line . "\n";
+                $content .= $line."\n";
             }
             return $content;
         } else {
@@ -3039,13 +3039,13 @@ 
         $group_condition = null;
         if (isset($group_id)) {
             $group_id = intval($group_id);
-            $group_condition = " AND props.to_group_id='" . $group_id . "' ";
+            $group_condition = " AND props.to_group_id='".$group_id."' ";
         }
 
         $session_condition = null;
         if (isset($session_id)) {
             $session_id = intval($session_id);
-            $session_condition = " AND props.session_id='" . $session_id . "' ";
+            $session_condition = " AND props.session_id='".$session_id."' ";
         }
 
         $sql = "SELECT SUM(size)
@@ -3055,7 +3055,7 @@ 
                 WHERE
                     props.c_id 	= $course_id AND
                     docs.c_id 	= $course_id AND
-                    props.tool 	= '" . TOOL_DOCUMENT . "' AND
+                    props.tool 	= '".TOOL_DOCUMENT."' AND
                     props.visibility <> 2
                     $group_condition
                     $session_condition
@@ -3078,8 +3078,8 @@ 
         $course_quota_m = round($course_quota / 1048576);
         $already_consumed_space_m = round($already_consumed_space / 1048576);
 
-        $message = get_lang('MaximumAllowedQuota') . ' <strong>' . $course_quota_m . ' megabyte</strong>.<br />';
-        $message .= get_lang('CourseCurrentlyUses') . ' <strong>' . $already_consumed_space_m . ' megabyte</strong>.<br />';
+        $message = get_lang('MaximumAllowedQuota').' <strong>'.$course_quota_m.' megabyte</strong>.<br />';
+        $message .= get_lang('CourseCurrentlyUses').' <strong>'.$already_consumed_space_m.' megabyte</strong>.<br />';
 
         $percentage = round(($already_consumed_space / $course_quota * 100), 1);
 
@@ -3087,33 +3087,33 @@ 
 
         // Decide where to place percentage in graph
         if ($percentage >= 50) {
-            $text_in_filled = '&nbsp;' . $other_percentage . '%';
+            $text_in_filled = '&nbsp;'.$other_percentage.'%';
             $text_in_unfilled = '';
         } else {
-            $text_in_unfilled = '&nbsp;' . $other_percentage . '%';
+            $text_in_unfilled = '&nbsp;'.$other_percentage.'%';
             $text_in_filled = '';
         }
 
         // Decide the background colour of the graph
         if ($percentage < 65) {
-            $colour = '#00BB00';        // Safe - green
+            $colour = '#00BB00'; // Safe - green
         } elseif ($percentage < 90) {
-            $colour = '#ffd400';        // Filling up - yelloworange
+            $colour = '#ffd400'; // Filling up - yelloworange
         } else {
-            $colour = '#DD0000';        // Full - red
+            $colour = '#DD0000'; // Full - red
         }
 
         // This is used for the table width: a table of only 100 pixels looks too small
         $visual_percentage = 4 * $percentage;
         $visual_other_percentage = 4 * $other_percentage;
 
-        $message .= get_lang('PercentageQuotaInUse') . ': <strong>' . $percentage . '%</strong>.<br />' .
-            get_lang('PercentageQuotaFree') . ': <strong>' . $other_percentage . '%</strong>.<br />';
+        $message .= get_lang('PercentageQuotaInUse').': <strong>'.$percentage.'%</strong>.<br />'.
+            get_lang('PercentageQuotaFree').': <strong>'.$other_percentage.'%</strong>.<br />';
 
-        $show_percentage = '&nbsp;' . $percentage . '%';
-        $message .= '<div style="width: 80%; text-align: center; -moz-border-radius: 5px 5px 5px 5px; border: 1px solid #aaa; background-image: url(\'' . api_get_path(WEB_CODE_PATH) . 'css/' . api_get_visual_theme() . '/images/bg-header4.png\');" class="document-quota-bar">' .
-            '<div style="width:' . $percentage . '%; background-color: #bbb; border-right:3px groove #bbb; -moz-border-radius:5px;">&nbsp;</div>' .
-            '<span style="margin-top: -15px; margin-left:-15px; position: absolute;font-weight:bold;">' . $show_percentage . '</span></div>';
+        $show_percentage = '&nbsp;'.$percentage.'%';
+        $message .= '<div style="width: 80%; text-align: center; -moz-border-radius: 5px 5px 5px 5px; border: 1px solid #aaa; background-image: url(\''.api_get_path(WEB_CODE_PATH).'css/'.api_get_visual_theme().'/images/bg-header4.png\');" class="document-quota-bar">'.
+            '<div style="width:'.$percentage.'%; background-color: #bbb; border-right:3px groove #bbb; -moz-border-radius:5px;">&nbsp;</div>'.
+            '<span style="margin-top: -15px; margin-left:-15px; position: absolute;font-weight:bold;">'.$show_percentage.'</span></div>';
         echo $message;
     }
 
@@ -3129,7 +3129,7 @@ 
         $percentage = $already_consumed_space / $course_quota * 100;
         $percentage = round($percentage, 1);
         $message = get_lang('YouAreCurrentlyUsingXOfYourX');
-        $message = sprintf($message, $already_consumed_space_m, $percentage . '%', $course_quota_m . ' ');
+        $message = sprintf($message, $already_consumed_space_m, $percentage.'%', $course_quota_m.' ');
         echo Display::div($message, array('id' => 'document_quota'));
     }
 
@@ -3161,13 +3161,13 @@ 
      */
     public static function generate_jplayer_jquery($params = array())
     {
-        $js_path = api_get_path(WEB_LIBRARY_PATH) . 'javascript/';
+        $js_path = api_get_path(WEB_LIBRARY_PATH).'javascript/';
 
         $js = '
-            $("#jquery_jplayer_' . $params['count'] . '").jPlayer({
+            $("#jquery_jplayer_' . $params['count'].'").jPlayer({
                 ready: function() {
                     $(this).jPlayer("setMedia", {
-                        ' . $params['extension'] . ' : "' . $params['url'] . '"
+                        ' . $params['extension'].' : "'.$params['url'].'"
                     });
                 },
                 play: function() { // To avoid both jPlayers playing together.
@@ -3175,12 +3175,12 @@ 
                 },
                 //errorAlerts: true,
                 //warningAlerts: true,
-                swfPath: "' . $js_path . 'jquery-jplayer/jplayer/",
+                swfPath: "' . $js_path.'jquery-jplayer/jplayer/",
                 //supplied: "m4a, oga, mp3, ogg, wav",
-                supplied: "' . $params['extension'] . '",
+                supplied: "' . $params['extension'].'",
                 wmode: "window",
                 solution: "flash, html",  // Do not change this setting
-                cssSelectorAncestor: "#jp_container_' . $params['count'] . '",
+                cssSelectorAncestor: "#jp_container_' . $params['count'].'",
             });  	 ' . "\n\n";
 
         return $js;
@@ -3210,16 +3210,16 @@ 
         }
 
         //Shows only the play button
-        $html = '<div id="jquery_jplayer_' . $i . '" class="jp-jplayer"></div>
-                <div id="jp_container_' . $i . '" class="jp-audio">
+        $html = '<div id="jquery_jplayer_'.$i.'" class="jp-jplayer"></div>
+                <div id="jp_container_' . $i.'" class="jp-audio">
                     <div class="jp-type-single">
                         <div class="jp-gui jp-interface">
                             <ul class="jp-controls">
                                 <li><a href="javascript:;" class="jp-play" tabindex="1">play</a></li>
                                 <li><a href="javascript:;" class="jp-pause" tabindex="1">pause</a></li>
-                                ' . $extra_controls . '
+                                ' . $extra_controls.'
                             </ul>
-                            ' . $progress . '
+                            ' . $progress.'
                         </div>
                     </div>
                 </div>';
@@ -3272,8 +3272,8 @@ 
                     </div>
                 </div>
                 <div class="jp-no-solution">
-                    <span>' . get_lang('UpdateRequire') . '</span>
-                    ' . get_lang("ToPlayTheMediaYouWillNeedToUpdateYourBrowserToARecentVersionYouCanAlsoDownloadTheFile") . '
+                    <span>' . get_lang('UpdateRequire').'</span>
+                    ' . get_lang("ToPlayTheMediaYouWillNeedToUpdateYourBrowserToARecentVersionYouCanAlsoDownloadTheFile").'
                 </div>
             </div>
         </div>';
@@ -3354,7 +3354,7 @@ 
 
         $add_folder_filter = null;
         if (!empty($filter_by_folder)) {
-            $add_folder_filter = " AND docs.path LIKE '" . Database::escape_string($filter_by_folder) . "%'";
+            $add_folder_filter = " AND docs.path LIKE '".Database::escape_string($filter_by_folder)."%'";
         }
 
         // If we are in LP display hidden folder https://support.chamilo.org/issues/6679
@@ -3389,7 +3389,7 @@ 
 
                 $notLikeCondition = null;
                 for ($i = 1; $i <= $num; $i++) {
-                    $repeat = str_repeat('/%', $i+1);
+                    $repeat = str_repeat('/%', $i + 1);
                     $notLikeCondition .= " AND docs.path NOT LIKE '".Database::escape_string($cleanedPath.$repeat)."' ";
                 }
 
@@ -3414,7 +3414,7 @@ 
                 ON (docs.id = last.ref AND docs.c_id = last.c_id)
                 WHERE
                     docs.path NOT LIKE '%_DELETED_%' AND
-                    last.tool = '" . TOOL_DOCUMENT . "' $condition_session AND
+                    last.tool = '".TOOL_DOCUMENT."' $condition_session AND
                     (last.visibility = '1' $lp_visibility_condition) AND
                     last.visibility <> 2 AND
                     docs.c_id = {$course_info['real_id']} AND
@@ -3444,7 +3444,7 @@ 
                 Display::url(
                     Display::return_icon('close.png', get_lang('Close'), array(), ICON_SIZE_SMALL),
                     ' javascript:void(0);',
-                    array('id' => 'close_div_' . $course_info['real_id'] . '_' . $session_id, 'class' => 'close_div')
+                    array('id' => 'close_div_'.$course_info['real_id'].'_'.$session_id, 'class' => 'close_div')
                 ),
                 array('style' => 'position:absolute;right:10px')
             );
@@ -3548,7 +3548,7 @@ 
                     $('#'+tempId).hide();
                 } else {
                     image.addClass('open');
-                    image.attr('src', '" . Display::returnIconPath('nolines_minus.gif') . "');
+                    image.attr('src', '" . Display::returnIconPath('nolines_minus.gif')."');
                     $('#'+id).hide();
                     $('#'+tempId).show();
 
@@ -3595,7 +3595,7 @@ 
         $target,
         $overwrite_url
     ) {
-        $img_sys_path = api_get_path(SYS_CODE_PATH) . 'img/';
+        $img_sys_path = api_get_path(SYS_CODE_PATH).'img/';
         $web_code_path = api_get_path(WEB_CODE_PATH);
 
         $documentId = $resource['id'];
@@ -3610,7 +3610,7 @@ 
         // It's a file.
         $icon = choose_image($path);
         $position = strrpos($icon, '.');
-        $icon = substr($icon, 0, $position) . '_small.gif';
+        $icon = substr($icon, 0, $position).'_small.gif';
         $my_file_title = $resource['title'];
         $visibility = $resource['visibility'];
 
@@ -3622,29 +3622,29 @@ 
         // Show the "image name" not the filename of the image.
         if ($lp_id) {
             // LP URL
-            $url = api_get_path(WEB_CODE_PATH) . 'lp/lp_controller.php?'.api_get_cidreq().'&amp;action=add_item&amp;type=' . TOOL_DOCUMENT . '&amp;file=' . $documentId . '&amp;lp_id=' . $lp_id;
+            $url = api_get_path(WEB_CODE_PATH).'lp/lp_controller.php?'.api_get_cidreq().'&amp;action=add_item&amp;type='.TOOL_DOCUMENT.'&amp;file='.$documentId.'&amp;lp_id='.$lp_id;
             if (!empty($overwrite_url)) {
-                $url = $overwrite_url . '&cidReq=' . $course_info['code'] . '&id_session=' . $session_id . '&document_id=' . $documentId.'';
+                $url = $overwrite_url.'&cidReq='.$course_info['code'].'&id_session='.$session_id.'&document_id='.$documentId.'';
             }
         } else {
             // Direct document URL
-            $url = $web_code_path . 'document/document.php?cidReq=' . $course_info['code'] . '&id_session=' . $session_id . '&id=' . $documentId;
+            $url = $web_code_path.'document/document.php?cidReq='.$course_info['code'].'&id_session='.$session_id.'&id='.$documentId;
             if (!empty($overwrite_url)) {
-                $url = $overwrite_url . '&cidReq=' . $course_info['code'] . '&id_session=' . $session_id . '&document_id=' . $documentId;
+                $url = $overwrite_url.'&cidReq='.$course_info['code'].'&id_session='.$session_id.'&document_id='.$documentId;
             }
         }
 
         $img = Display::returnIconPath($icon);
-        if (!file_exists($img_sys_path . $icon)) {
+        if (!file_exists($img_sys_path.$icon)) {
             $img = Display::returnIconPath('default_small.gif');
         }
 
         $link = Display::url(
-            '<img alt="" src="' . $img . '" title="" />&nbsp;' . $my_file_title, $url,
+            '<img alt="" src="'.$img.'" title="" />&nbsp;'.$my_file_title, $url,
             array('target' => $target, 'class' => 'moved')
         );
 
-        $directUrl = $web_code_path . 'document/document.php?cidReq=' . $course_info['code'] . '&id_session=' . $session_id . '&id=' . $documentId;
+        $directUrl = $web_code_path.'document/document.php?cidReq='.$course_info['code'].'&id_session='.$session_id.'&id='.$documentId;
 
         $link .= Display::url(
             Display::return_icon('preview_view.png', get_lang('Preview')),
@@ -3659,12 +3659,12 @@ 
         $return = null;
 
         if ($lp_id == false) {
-            $return .= '<li class="doc_resource '.$visibilityClass.' " data_id="' . $documentId . '" data_type="document" title="' . $my_file_title . '" >';
+            $return .= '<li class="doc_resource '.$visibilityClass.' " data_id="'.$documentId.'" data_type="document" title="'.$my_file_title.'" >';
         } else {
-            $return .= '<li class="doc_resource lp_resource_element '.$visibilityClass.' " data_id="' . $documentId . '" data_type="document" title="' . $my_file_title . '" >';
+            $return .= '<li class="doc_resource lp_resource_element '.$visibilityClass.' " data_id="'.$documentId.'" data_type="document" title="'.$my_file_title.'" >';
         }
 
-        $return .= '<div class="item_data" style="margin-left:' . ($num  * 5 ) . 'px;margin-right:5px;">';
+        $return .= '<div class="item_data" style="margin-left:'.($num * 5).'px;margin-right:5px;">';
 
         if ($add_move_button) {
             $return .= '<a class="moved" href="#">';
@@ -3729,7 +3729,7 @@ 
             if (isset($resource['visible']) && $resource['visible'] == 0) {
                 $folder_class_hidden = "doc_folder_hidden"; // in base.css
             }
-            $onclick = 'onclick="javascript: testResources(\'res_' . $resource['id'] . '\',\'img_' . $resource['id'] . '\')"';
+            $onclick = 'onclick="javascript: testResources(\'res_'.$resource['id'].'\',\'img_'.$resource['id'].'\')"';
         }
         $return = null;
 
@@ -3737,22 +3737,22 @@ 
             $return = '<ul class="lp_resource">';
         }
 
-        $return .= '<li class="doc_folder '.$folder_class_hidden.'" id="doc_id_' . $resource['id'] . '"  style="margin-left:' . ($num * 18) . 'px; ">';
+        $return .= '<li class="doc_folder '.$folder_class_hidden.'" id="doc_id_'.$resource['id'].'"  style="margin-left:'.($num * 18).'px; ">';
 
         $image = Display::returnIconPath('nolines_plus.gif');
         if (empty($path)) {
             $image = Display::returnIconPath('nolines_minus.gif');
         }
-        $return .= '<img style="cursor: pointer;" src="'.$image.'" align="absmiddle" id="img_'.$resource['id'] . '" '.$onclick.'>';
+        $return .= '<img style="cursor: pointer;" src="'.$image.'" align="absmiddle" id="img_'.$resource['id'].'" '.$onclick.'>';
         $return .= Display::return_icon('lp_folder.gif').'&nbsp;';
         $return .= '<span '.$onclick.' style="cursor: pointer;" >'.$title.'</span>';
         $return .= '</li>';
 
         if (empty($path)) {
             if ($folderId == false) {
-                $return .= '<div id="res_' . $resource['id'] . '" >';
+                $return .= '<div id="res_'.$resource['id'].'" >';
             } else {
-                $return .= '<div id="res_' . $resource['id'] . '" style="display: none;" >';
+                $return .= '<div id="res_'.$resource['id'].'" style="display: none;" >';
             }
         }
 
@@ -3914,9 +3914,9 @@ 
             $session_id = api_get_session_id();
         }
         $course_info = api_get_course_info($course_code);
-        $course_dir = $course_info['path'] . '/document';
+        $course_dir = $course_info['path'].'/document';
         $sys_course_path = api_get_path(SYS_COURSE_PATH);
-        $base_work_dir = $sys_course_path . $course_dir;
+        $base_work_dir = $sys_course_path.$course_dir;
 
         $course_id = $course_info['real_id'];
         $table_document = Database::get_course_table(TABLE_DOCUMENT);
@@ -3925,7 +3925,7 @@ 
         $result = Database::query($qry);
         if (Database::num_rows($result) == 1) {
             $row = Database::fetch_array($result);
-            $doc_path = api_get_path(SYS_COURSE_PATH) . $course_dir . $row['path'];
+            $doc_path = api_get_path(SYS_COURSE_PATH).$course_dir.$row['path'];
             //TODO: mime_content_type is deprecated, fileinfo php extension is enabled by default as of PHP 5.3.0
             // now versions of PHP on Debian testing(5.2.6-5) and Ubuntu(5.2.6-2ubuntu) are lower, so wait for a while
             $doc_mime = mime_content_type($doc_path);
@@ -3956,8 +3956,8 @@ 
                 $file_content = self::get_text_content($doc_path, $doc_mime);
                 $course_code = Database::escape_string($course_code);
 
-                require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
-                require_once api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php';
+                require_once api_get_path(LIBRARY_PATH).'search/ChamiloIndexer.class.php';
+                require_once api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php';
 
                 $ic_slide = new IndexableChunk();
                 $ic_slide->addValue('title', $file_title);
@@ -3974,7 +3974,7 @@ 
                 $di = new ChamiloIndexer();
                 $return = $di->connectDb(null, null, $lang);
 
-                require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
+                require_once api_get_path(LIBRARY_PATH).'specific_fields_manager.lib.php';
                 $specific_fields = get_specific_field_list();
 
                 // process different depending on what to do if file exists
@@ -4011,7 +4011,7 @@ 
                             } else { //if the specific field is not defined, force an empty one
                                 $sterms = '';
                             }
-                            $all_specific_terms .= ' ' . $sterms;
+                            $all_specific_terms .= ' '.$sterms;
                             $sterms = explode(',', $sterms);
                             foreach ($sterms as $sterm) {
                                 $sterm = trim($sterm);
@@ -4025,7 +4025,7 @@ 
                             }
                         }
                         // Add terms also to content to make terms findable by probabilistic search
-                        $file_content = $all_specific_terms . ' ' . $file_content;
+                        $file_content = $all_specific_terms.' '.$file_content;
 
                         if (!$simulation) {
                             $ic_slide->addValue('content', $file_content);
@@ -4051,7 +4051,7 @@ 
                         } else { //if the specific field is not defined, force an empty one
                             $sterms = '';
                         }
-                        $all_specific_terms .= ' ' . $sterms;
+                        $all_specific_terms .= ' '.$sterms;
                         if (!empty($sterms)) {
                             $sterms = explode(',', $sterms);
                             foreach ($sterms as $sterm) {
@@ -4063,7 +4063,7 @@ 
                         }
                     }
                     // Add terms also to content to make terms findable by probabilistic search
-                    $file_content = $all_specific_terms . ' ' . $file_content;
+                    $file_content = $all_specific_terms.' '.$file_content;
                     if (!$simulation) {
                         $ic_slide->addValue('content', $file_content);
                         $di->addChunk($ic_slide);
@@ -4346,7 +4346,7 @@ 
         $defaultVisibility = 'visible';
 
         if (isset($settings['documents'])) {
-            $portalDefaultVisibility =  'invisible';
+            $portalDefaultVisibility = 'invisible';
             if ($settings['documents'] == 'true') {
                 $portalDefaultVisibility = 'visible';
             }
@@ -4585,7 +4585,7 @@ 
         //make htaccess with allow from all, and file index.html into temp/audio
         $htaccess = api_get_path(SYS_ARCHIVE_PATH).'temp/audio/.htaccess';
         if (!file_exists($htaccess)) {
-            $htaccess_content="order deny,allow\r\nallow from all\r\nOptions -Indexes";
+            $htaccess_content = "order deny,allow\r\nallow from all\r\nOptions -Indexes";
             $fp = @ fopen(api_get_path(SYS_ARCHIVE_PATH).'temp/audio/.htaccess', 'w');
             if ($fp) {
                 fwrite($fp, $htaccess_content);
@@ -4594,9 +4594,9 @@ 
         }
 
         //encript temp name file
-        $name_crip = sha1(uniqid());//encript
-        $findext= explode(".", $file);
-        $extension = $findext[count($findext)-1];
+        $name_crip = sha1(uniqid()); //encript
+        $findext = explode(".", $file);
+        $extension = $findext[count($findext) - 1];
         $file_crip = $name_crip.'.'.$extension;
 
         //copy file to temp/audio directory
@@ -4700,7 +4700,7 @@ 
         $comment = null;
 
         $fileName = api_replace_dangerous_char($title);
-        $filePath = api_get_path(SYS_COURSE_PATH) . "{$courseData['path']}/document{$dir}";
+        $filePath = api_get_path(SYS_COURSE_PATH)."{$courseData['path']}/document{$dir}";
         $fileFullPath = "{$filePath}/{$fileName}.html";
         $fileSize = 0;
         $fileType = 'file';
@@ -4752,7 +4752,7 @@ 
             $fileSize,
             $title,
             $comment,
-            0,//$readonly = 0,
+            0, //$readonly = 0,
             true, //$save_visibility = true,
             null, //$group_id = null,
             $sessionId
@@ -5038,8 +5038,8 @@ 
             $sessionId,
             $groupId
         )) {
-            $uniqueName = self::addSuffixToFileName($name, '_' . $counter);
-            $filePath = $path . $uniqueName;
+            $uniqueName = self::addSuffixToFileName($name, '_'.$counter);
+            $filePath = $path.$uniqueName;
             $counter++;
         }
 
@@ -5078,7 +5078,7 @@ 
             $folder_sql = implode("','", $escaped_folders);
 
             $sql = "SELECT * FROM $doc_table
-                WHERE filetype = 'folder' AND c_id = $course_id AND path IN ('" . $folder_sql . "')";
+                WHERE filetype = 'folder' AND c_id = $course_id AND path IN ('".$folder_sql."')";
             $res = Database::query($sql);
             $folder_titles = array();
             while ($obj = Database::fetch_object($res)) {
@@ -5115,9 +5115,9 @@ 
                     $folder_titles[$folder] = cut($folder_titles[$folder], 80);
                     $counter = count($path_parts) - 2;
                     if ($counter > 0) {
-                        $label = str_repeat('&nbsp;&nbsp;&nbsp;', $counter) . ' &mdash; ' . $folder_titles[$folder];
+                        $label = str_repeat('&nbsp;&nbsp;&nbsp;', $counter).' &mdash; '.$folder_titles[$folder];
                     } else {
-                        $label = ' &mdash; ' . $folder_titles[$folder];
+                        $label = ' &mdash; '.$folder_titles[$folder];
                     }
                     $parent_select->addOption($label, $folder_id);
                     if ($selected != '') {
@@ -5135,7 +5135,7 @@ 
                     } else {
                         $path_parts = explode('/', str_replace($group_dir, '', $folder));
                         $label = cut($label, 80);
-                        $label = str_repeat('&nbsp;&nbsp;&nbsp;', count($path_parts) - 2) . ' &mdash; ' . $label;
+                        $label = str_repeat('&nbsp;&nbsp;&nbsp;', count($path_parts) - 2).' &mdash; '.$label;
                     }
                     $parent_select->addOption($label, $folder_id);
                     if ($selected != '') {
@@ -5168,7 +5168,7 @@ 
     ) {
         global $dbl_click_id;
         $course_info = api_get_course_info();
-        $www = api_get_path(WEB_COURSE_PATH) . $course_info['path'] . '/document';
+        $www = api_get_path(WEB_COURSE_PATH).$course_info['path'].'/document';
         $webOdflist = DocumentManager::get_web_odf_extension_list();
 
         // Get the title or the basename depending on what we're using
@@ -5192,11 +5192,11 @@ 
 
         if (!$show_as_icon) {
             // Build download link (icon)
-            $forcedownload_link = ($filetype == 'folder') ? api_get_self() . '?' . api_get_cidreq() . '&action=downloadfolder&id=' . $document_data['id'] : api_get_self() . '?' . api_get_cidreq() . '&amp;action=download&amp;id=' . $document_data['id'];
+            $forcedownload_link = ($filetype == 'folder') ? api_get_self().'?'.api_get_cidreq().'&action=downloadfolder&id='.$document_data['id'] : api_get_self().'?'.api_get_cidreq().'&amp;action=download&amp;id='.$document_data['id'];
             // Folder download or file download?
             $forcedownload_icon = ($filetype == 'folder') ? 'save_pack.png' : 'save.png';
             // Prevent multiple clicks on zipped folder download
-            $prevent_multiple_click = ($filetype == 'folder') ? " onclick=\"javascript: if(typeof clic_$dbl_click_id == 'undefined' || !clic_$dbl_click_id) { clic_$dbl_click_id=true; window.setTimeout('clic_" . ($dbl_click_id++) . "=false;',10000); } else { return false; }\"" : '';
+            $prevent_multiple_click = ($filetype == 'folder') ? " onclick=\"javascript: if(typeof clic_$dbl_click_id == 'undefined' || !clic_$dbl_click_id) { clic_$dbl_click_id=true; window.setTimeout('clic_".($dbl_click_id++)."=false;',10000); } else { return false; }\"" : '';
         }
 
         $target = '_self';
@@ -5212,17 +5212,17 @@ 
 
             if ($is_browser_viewable_file) {
                 if ($ext == 'pdf' || in_array($ext, $webOdflist)) {
-                    $url = api_get_self() . '?' . api_get_cidreq() . '&amp;action=download&amp;id=' . $document_data['id'];
+                    $url = api_get_self().'?'.api_get_cidreq().'&amp;action=download&amp;id='.$document_data['id'];
                 } else {
-                    $url = 'showinframes.php?' . api_get_cidreq() . '&id=' . $document_data['id'];
+                    $url = 'showinframes.php?'.api_get_cidreq().'&id='.$document_data['id'];
                 }
             } else {
                 // url-encode for problematic characters (we may not call them dangerous characters...)
-                $path = str_replace('%2F', '/', $url_path) . '?' . api_get_cidreq();
-                $url = $www . $path;
+                $path = str_replace('%2F', '/', $url_path).'?'.api_get_cidreq();
+                $url = $www.$path;
             }
         } else {
-            $url = api_get_self() . '?' . api_get_cidreq() . '&id=' . $document_data['id'];
+            $url = api_get_self().'?'.api_get_cidreq().'&id='.$document_data['id'];
         }
 
         // The little download icon
@@ -5232,10 +5232,10 @@ 
         if ($path == '/shared_folder') {
             $tooltip_title_alt = get_lang('UserFolders');
         } elseif (strstr($path, 'shared_folder_session_')) {
-            $tooltip_title_alt = get_lang('UserFolders') . ' (' . api_get_session_name(api_get_session_id()) . ')';
+            $tooltip_title_alt = get_lang('UserFolders').' ('.api_get_session_name(api_get_session_id()).')';
         } elseif (strstr($tooltip_title, 'sf_user_')) {
             $userinfo = api_get_user_info(substr($tooltip_title, 8));
-            $tooltip_title_alt = get_lang('UserFolder') . ' ' . $userinfo['complete_name'];
+            $tooltip_title_alt = get_lang('UserFolder').' '.$userinfo['complete_name'];
         } elseif ($path == '/chat_files') {
             $tooltip_title_alt = get_lang('ChatFiles');
         } elseif ($path == '/learning_path') {
@@ -5267,24 +5267,24 @@ 
                 ) {
                     //filter when I am into shared folder, I can show for donwload only my shared folder
                     if (DocumentManager::is_shared_folder($curdirpath, $current_session_id)) {
-                        if (preg_match('/shared_folder\/sf_user_' . api_get_user_id() . '$/', urldecode($forcedownload_link)) ||
-                            preg_match('/shared_folder_session_' . $current_session_id . '\/sf_user_' . api_get_user_id() . '$/', urldecode($forcedownload_link)) ||
+                        if (preg_match('/shared_folder\/sf_user_'.api_get_user_id().'$/', urldecode($forcedownload_link)) ||
+                            preg_match('/shared_folder_session_'.$current_session_id.'\/sf_user_'.api_get_user_id().'$/', urldecode($forcedownload_link)) ||
                             api_is_allowed_to_edit() || api_is_platform_admin()
                         ) {
-                            $force_download_html = ($size == 0) ? '' : '<a href="' . $forcedownload_link . '" style="float:right"' . $prevent_multiple_click . '>' .
-                                Display::return_icon($forcedownload_icon, get_lang('Download'), array(), ICON_SIZE_SMALL) . '</a>';
+                            $force_download_html = ($size == 0) ? '' : '<a href="'.$forcedownload_link.'" style="float:right"'.$prevent_multiple_click.'>'.
+                                Display::return_icon($forcedownload_icon, get_lang('Download'), array(), ICON_SIZE_SMALL).'</a>';
                         }
                     } elseif (!preg_match('/shared_folder/', urldecode($forcedownload_link)) ||
                         api_is_allowed_to_edit() ||
                         api_is_platform_admin()
                     ) {
-                        $force_download_html = ($size == 0) ? '' : '<a href="' . $forcedownload_link . '" style="float:right"' . $prevent_multiple_click . '>' .
-                            Display::return_icon($forcedownload_icon, get_lang('Download'), array(), ICON_SIZE_SMALL) . '</a>';
+                        $force_download_html = ($size == 0) ? '' : '<a href="'.$forcedownload_link.'" style="float:right"'.$prevent_multiple_click.'>'.
+                            Display::return_icon($forcedownload_icon, get_lang('Download'), array(), ICON_SIZE_SMALL).'</a>';
                     }
                 }
             } else {
-                $force_download_html = ($size == 0) ? '' : '<a href="' . $forcedownload_link . '" style="float:right"' . $prevent_multiple_click . '>' .
-                    Display::return_icon($forcedownload_icon, get_lang('Download'), array(), ICON_SIZE_SMALL) . '</a>';
+                $force_download_html = ($size == 0) ? '' : '<a href="'.$forcedownload_link.'" style="float:right"'.$prevent_multiple_click.'>'.
+                    Display::return_icon($forcedownload_icon, get_lang('Download'), array(), ICON_SIZE_SMALL).'</a>';
             }
 
             // Copy files to users myfiles
@@ -5292,12 +5292,12 @@ 
                 api_get_setting('users_copy_files') === 'true' &&
                 !api_is_anonymous()
             ) {
-                $copy_myfiles_link = ($filetype == 'file') ? api_get_self() . '?' . api_get_cidreq() . '&action=copytomyfiles&id=' . $document_data['id'] : api_get_self() . '?' . api_get_cidreq();
+                $copy_myfiles_link = ($filetype == 'file') ? api_get_self().'?'.api_get_cidreq().'&action=copytomyfiles&id='.$document_data['id'] : api_get_self().'?'.api_get_cidreq();
 
                 if ($filetype == 'file') {
 
-                    $copy_to_myfiles = '<a href="' . $copy_myfiles_link . '" style="float:right"' . $prevent_multiple_click . '>' .
-                        Display::return_icon('briefcase.png', get_lang('CopyToMyFiles'), array(), ICON_SIZE_SMALL) . '&nbsp;&nbsp;</a>';
+                    $copy_to_myfiles = '<a href="'.$copy_myfiles_link.'" style="float:right"'.$prevent_multiple_click.'>'.
+                        Display::return_icon('briefcase.png', get_lang('CopyToMyFiles'), array(), ICON_SIZE_SMALL).'&nbsp;&nbsp;</a>';
 
                     if (api_get_setting('allow_my_files') === 'false') {
                         $copy_to_myfiles = '';
@@ -5316,13 +5316,13 @@ 
                 $filetype == 'file' &&
                 in_array($extension, array('html', 'htm'))
             ) {
-                $pdf_icon = ' <a style="float:right".' . $prevent_multiple_click . ' href="' . api_get_self() . '?' . api_get_cidreq() . '&action=export_to_pdf&id=' . $document_data['id'] . '">' .
-                    Display::return_icon('pdf.png', get_lang('Export2PDF'), array(), ICON_SIZE_SMALL) . '</a> ';
+                $pdf_icon = ' <a style="float:right".'.$prevent_multiple_click.' href="'.api_get_self().'?'.api_get_cidreq().'&action=export_to_pdf&id='.$document_data['id'].'">'.
+                    Display::return_icon('pdf.png', get_lang('Export2PDF'), array(), ICON_SIZE_SMALL).'</a> ';
             }
 
             if ($is_browser_viewable_file) {
-                $open_in_new_window_link = '<a href="' . $www . str_replace('%2F', '/', $url_path) . '?' . api_get_cidreq() . '" style="float:right"' . $prevent_multiple_click . ' target="_blank">' .
-                    Display::return_icon('open_in_new_window.png', get_lang('OpenInANewWindow'), array(), ICON_SIZE_SMALL) . '&nbsp;&nbsp;</a>';
+                $open_in_new_window_link = '<a href="'.$www.str_replace('%2F', '/', $url_path).'?'.api_get_cidreq().'" style="float:right"'.$prevent_multiple_click.' target="_blank">'.
+                    Display::return_icon('open_in_new_window.png', get_lang('OpenInANewWindow'), array(), ICON_SIZE_SMALL).'&nbsp;&nbsp;</a>';
             }
 
             if ($filetype == 'file') {
@@ -5331,9 +5331,9 @@ 
                     (preg_match('/wav$/i', urldecode($checkExtension))) ||
                     preg_match('/ogg$/i', urldecode($checkExtension))
                 ) {
-                    return '<span style="float:left" ' . $visibility_class . '>' .
-                    $title .
-                    '</span>' . $force_download_html . $send_to . $copy_to_myfiles . $open_in_new_window_link . $pdf_icon;
+                    return '<span style="float:left" '.$visibility_class.'>'.
+                    $title.
+                    '</span>'.$force_download_html.$send_to.$copy_to_myfiles.$open_in_new_window_link.$pdf_icon;
                 } elseif (
 
                     // Show preview
@@ -5346,7 +5346,7 @@ 
                     preg_match('/svg$/i', urldecode($checkExtension))
                 ) {
                     // Simpler version of showinframesmin.php with no headers
-                    $url = 'show_content.php?' . api_get_cidreq() . '&id=' . $document_data['id'];
+                    $url = 'show_content.php?'.api_get_cidreq().'&id='.$document_data['id'];
                     $class = 'ajax';
                     if ($visibility == false) {
                         $class = "ajax invisible";
@@ -5361,34 +5361,34 @@ 
                             'style' => 'float: left;'
                         ]
                     )
-                    . $force_download_html . $send_to . $copy_to_myfiles
-                    . $open_in_new_window_link . $pdf_icon;
+                    . $force_download_html.$send_to.$copy_to_myfiles
+                    . $open_in_new_window_link.$pdf_icon;
                 } else {
                     // For PDF Download the file.
                     $pdfPreview = null;
                     if ($ext != 'pdf' && !in_array($ext, $webOdflist)) {
-                        $url = 'showinframes.php?' . api_get_cidreq() . '&id=' . $document_data['id'];
+                        $url = 'showinframes.php?'.api_get_cidreq().'&id='.$document_data['id'];
                     } else {
                         $pdfPreview = Display::url(
                             Display::return_icon('preview.gif', get_lang('Preview')),
-                            api_get_path(WEB_CODE_PATH).'document/showinframes.php?' . api_get_cidreq() . '&id=' . $document_data['id'],
+                            api_get_path(WEB_CODE_PATH).'document/showinframes.php?'.api_get_cidreq().'&id='.$document_data['id'],
                             array('style' => 'float:right')
                         );
                     }
                     // No plugin just the old and good showinframes.php page
-                    return '<a href="' . $url . '" title="' . $tooltip_title_alt . '" style="float:left" ' . $visibility_class . ' >' . $title . '</a>' .
-                    $pdfPreview.$force_download_html . $send_to . $copy_to_myfiles . $open_in_new_window_link . $pdf_icon;
+                    return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" style="float:left" '.$visibility_class.' >'.$title.'</a>'.
+                    $pdfPreview.$force_download_html.$send_to.$copy_to_myfiles.$open_in_new_window_link.$pdf_icon;
                 }
             } else {
-                return '<a href="' . $url . '" title="' . $tooltip_title_alt . '" ' . $visibility_class . ' style="float:left">' . $title . '</a>' .
-                $force_download_html . $send_to . $copy_to_myfiles . $open_in_new_window_link . $pdf_icon;
+                return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" '.$visibility_class.' style="float:left">'.$title.'</a>'.
+                $force_download_html.$send_to.$copy_to_myfiles.$open_in_new_window_link.$pdf_icon;
             }
             // end copy files to users myfiles
         } else {
             // Icon column
             if (preg_match('/shared_folder/', urldecode($checkExtension)) &&
                 preg_match('/shared_folder$/', urldecode($checkExtension)) == false &&
-                preg_match('/shared_folder_session_' . $current_session_id . '$/', urldecode($url)) == false
+                preg_match('/shared_folder_session_'.$current_session_id.'$/', urldecode($url)) == false
             ) {
                 if ($filetype == 'file') {
                     //Sound preview with jplayer
@@ -5408,19 +5408,19 @@ 
                         preg_match('/bmp$/i', urldecode($checkExtension)) ||
                         preg_match('/svg$/i', urldecode($checkExtension))
                     ) {
-                        $url = 'showinframes.php?' . api_get_cidreq() . '&id=' . $document_data['id'];
-                        return '<a href="' . $url . '" title="' . $tooltip_title_alt . '" ' . $visibility_class . ' style="float:left">' .
-                        DocumentManager::build_document_icon_tag($filetype, $path) .
-                        Display::return_icon('shared.png', get_lang('ResourceShared'), array()) . '</a>';
+                        $url = 'showinframes.php?'.api_get_cidreq().'&id='.$document_data['id'];
+                        return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" '.$visibility_class.' style="float:left">'.
+                        DocumentManager::build_document_icon_tag($filetype, $path).
+                        Display::return_icon('shared.png', get_lang('ResourceShared'), array()).'</a>';
                     } else {
-                        return '<a href="' . $url . '" title="' . $tooltip_title_alt . '" ' . $visibility_class . ' style="float:left">' .
-                        DocumentManager::build_document_icon_tag($filetype, $path) .
-                        Display::return_icon('shared.png', get_lang('ResourceShared'), array()) . '</a>';
+                        return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" '.$visibility_class.' style="float:left">'.
+                        DocumentManager::build_document_icon_tag($filetype, $path).
+                        Display::return_icon('shared.png', get_lang('ResourceShared'), array()).'</a>';
                     }
                 } else {
-                    return '<a href="' . $url . '" title="' . $tooltip_title_alt . '" target="' . $target . '"' . $visibility_class . ' style="float:left">' .
-                    DocumentManager::build_document_icon_tag($filetype, $path) .
-                    Display::return_icon('shared.png', get_lang('ResourceShared'), array()) . '</a>';
+                    return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" target="'.$target.'"'.$visibility_class.' style="float:left">'.
+                    DocumentManager::build_document_icon_tag($filetype, $path).
+                    Display::return_icon('shared.png', get_lang('ResourceShared'), array()).'</a>';
                 }
             } else {
                 if ($filetype == 'file') {
@@ -5443,16 +5443,16 @@ 
                         preg_match('/bmp$/i', urldecode($checkExtension)) ||
                         preg_match('/svg$/i', urldecode($checkExtension))
                     ) {
-                        $url = 'showinframes.php?' . api_get_cidreq() . '&id=' . $document_data['id']; //without preview
-                        return '<a href="' . $url . '" title="' . $tooltip_title_alt . '" ' . $visibility_class . ' style="float:left">' .
-                        DocumentManager::build_document_icon_tag($filetype, $path) . '</a>';
+                        $url = 'showinframes.php?'.api_get_cidreq().'&id='.$document_data['id']; //without preview
+                        return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" '.$visibility_class.' style="float:left">'.
+                        DocumentManager::build_document_icon_tag($filetype, $path).'</a>';
                     } else {
-                        return '<a href="' . $url . '" title="' . $tooltip_title_alt . '" ' . $visibility_class . ' style="float:left">' .
-                        DocumentManager::build_document_icon_tag($filetype, $path) . '</a>';
+                        return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" '.$visibility_class.' style="float:left">'.
+                        DocumentManager::build_document_icon_tag($filetype, $path).'</a>';
                     }
                 } else {
-                    return '<a href="' . $url . '" title="' . $tooltip_title_alt . '" target="' . $target . '"' . $visibility_class . ' style="float:left">' .
-                    DocumentManager::build_document_icon_tag($filetype, $path) . '</a>';
+                    return '<a href="'.$url.'" title="'.$tooltip_title_alt.'" target="'.$target.'"'.$visibility_class.' style="float:left">'.
+                    DocumentManager::build_document_icon_tag($filetype, $path).'</a>';
                 }
             }
         }
@@ -5487,13 +5487,13 @@ 
                 $userinfo = api_get_user_info(substr($basename, 8));
                 $icon = $userinfo['avatar_small'];
 
-                $basename = get_lang('UserFolder') . ' ' . $userinfo['complete_name'];
+                $basename = get_lang('UserFolder').' '.$userinfo['complete_name'];
                 $user_image = true;
             } elseif (strstr($path, 'shared_folder_session_')) {
                 if ($is_allowed_to_edit) {
-                    $basename = '***(' . api_get_session_name($current_session_id) . ')*** ' . get_lang('HelpUsersFolder');
+                    $basename = '***('.api_get_session_name($current_session_id).')*** '.get_lang('HelpUsersFolder');
                 } else {
-                    $basename = get_lang('UserFolders') . ' (' . api_get_session_name($current_session_id) . ')';
+                    $basename = get_lang('UserFolders').' ('.api_get_session_name($current_session_id).')';
                 }
                 $icon = 'folder_users.gif';
             } else {
@@ -5587,16 +5587,16 @@ 
         // Build URL-parameters for table-sorting
         $sort_params = array();
         if (isset($_GET['column'])) {
-            $sort_params[] = 'column=' . Security::remove_XSS($_GET['column']);
+            $sort_params[] = 'column='.Security::remove_XSS($_GET['column']);
         }
         if (isset($_GET['page_nr'])) {
-            $sort_params[] = 'page_nr=' . Security::remove_XSS($_GET['page_nr']);
+            $sort_params[] = 'page_nr='.Security::remove_XSS($_GET['page_nr']);
         }
         if (isset($_GET['per_page'])) {
-            $sort_params[] = 'per_page=' . Security::remove_XSS($_GET['per_page']);
+            $sort_params[] = 'per_page='.Security::remove_XSS($_GET['per_page']);
         }
         if (isset($_GET['direction'])) {
-            $sort_params[] = 'direction=' . Security::remove_XSS($_GET['direction']);
+            $sort_params[] = 'direction='.Security::remove_XSS($_GET['direction']);
         }
         $sort_params = implode('&amp;', $sort_params);
         $visibility_icon = ($visibility == 0) ? 'invisible' : 'visible';
@@ -5609,89 +5609,89 @@ 
         if ($is_read_only /* or ($session_id!=api_get_session_id()) */) {
             if (api_is_course_admin() || api_is_platform_admin()) {
                 if ($extension == 'svg' && api_browser_support('svg') && api_get_setting('enabled_support_svg') == 'true') {
-                    $modify_icons = '<a href="edit_draw.php?' . api_get_cidreq() . '&id=' . $document_id . '">' .
-                        Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
-                } elseif (in_array($extension, $web_odf_extension_list)  && api_get_setting('enabled_support_odf') === true) {
-                    $modify_icons = '<a href="edit_odf.php?' . api_get_cidreq() . '&id=' . $document_id . '">' .
-                        Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                    $modify_icons = '<a href="edit_draw.php?'.api_get_cidreq().'&id='.$document_id.'">'.
+                        Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
+                } elseif (in_array($extension, $web_odf_extension_list) && api_get_setting('enabled_support_odf') === true) {
+                    $modify_icons = '<a href="edit_odf.php?'.api_get_cidreq().'&id='.$document_id.'">'.
+                        Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                 } elseif ($extension == 'png' || $extension == 'jpg' || $extension == 'jpeg' || $extension == 'bmp' || $extension == 'gif' || $extension == 'pxd' && api_get_setting('enabled_support_pixlr') == 'true') {
-                    $modify_icons = '<a href="edit_paint.php?' . api_get_cidreq() . '&id=' . $document_id . '">' .
-                        Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                    $modify_icons = '<a href="edit_paint.php?'.api_get_cidreq().'&id='.$document_id.'">'.
+                        Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                 } else {
-                    $modify_icons = '<a href="edit_document.php?' . api_get_cidreq() . '&id=' . $document_id. '">' .
-                        Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                    $modify_icons = '<a href="edit_document.php?'.api_get_cidreq().'&id='.$document_id.'">'.
+                        Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                 }
             } else {
                 $modify_icons = Display::return_icon('edit_na.png', get_lang('Modify'), '', ICON_SIZE_SMALL);
             }
-            $modify_icons .= '&nbsp;' . Display::return_icon('move_na.png', get_lang('Move'), array(), ICON_SIZE_SMALL);
+            $modify_icons .= '&nbsp;'.Display::return_icon('move_na.png', get_lang('Move'), array(), ICON_SIZE_SMALL);
             if (api_is_allowed_to_edit() || api_is_platform_admin()) {
-                $modify_icons .= '&nbsp;' . Display::return_icon($visibility_icon . '.png', get_lang('VisibilityCannotBeChanged'), '', ICON_SIZE_SMALL);
+                $modify_icons .= '&nbsp;'.Display::return_icon($visibility_icon.'.png', get_lang('VisibilityCannotBeChanged'), '', ICON_SIZE_SMALL);
             }
-            $modify_icons .= '&nbsp;' . Display::return_icon('delete_na.png', get_lang('Delete'), array(), ICON_SIZE_SMALL);
+            $modify_icons .= '&nbsp;'.Display::return_icon('delete_na.png', get_lang('Delete'), array(), ICON_SIZE_SMALL);
         } else {
             //Edit button
             if (in_array($path, DocumentManager::get_system_folders())) {
                 $modify_icons = Display::return_icon('edit_na.png', get_lang('Modify'), '', ICON_SIZE_SMALL);
-            } elseif ($is_certificate_mode ) {
+            } elseif ($is_certificate_mode) {
                 // gradebook category doesn't seem to be taken into account
-                $modify_icons = '<a href="edit_document.php?' . api_get_cidreq() . '&amp;id=' . $document_id . '&curdirpath=/certificates">' . Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                $modify_icons = '<a href="edit_document.php?'.api_get_cidreq().'&amp;id='.$document_id.'&curdirpath=/certificates">'.Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
             } else {
                 if (api_get_session_id()) {
                     if ($document_data['session_id'] == api_get_session_id()) {
                         if ($extension == 'svg' && api_browser_support('svg') && api_get_setting('enabled_support_svg') == 'true') {
-                            $modify_icons = '<a href="edit_draw.php?' . api_get_cidreq() . '&amp;id=' . $document_id  . '">' .
-                                Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
-                        } elseif (in_array($extension, $web_odf_extension_list)  && api_get_setting('enabled_support_odf') === true) {
-                            $modify_icons = '<a href="edit_odf.php?' . api_get_cidreq() . '&id=' . $document_id  . '">' .
-                                Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                            $modify_icons = '<a href="edit_draw.php?'.api_get_cidreq().'&amp;id='.$document_id.'">'.
+                                Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
+                        } elseif (in_array($extension, $web_odf_extension_list) && api_get_setting('enabled_support_odf') === true) {
+                            $modify_icons = '<a href="edit_odf.php?'.api_get_cidreq().'&id='.$document_id.'">'.
+                                Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                         } elseif ($extension == 'png' || $extension == 'jpg' || $extension == 'jpeg' || $extension == 'bmp' || $extension == 'gif' || $extension == 'pxd' && api_get_setting('enabled_support_pixlr') == 'true') {
-                            $modify_icons = '<a href="edit_paint.php?' . api_get_cidreq() . '&id=' . $document_id  . '">' .
-                                Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                            $modify_icons = '<a href="edit_paint.php?'.api_get_cidreq().'&id='.$document_id.'">'.
+                                Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                         } else {
-                            $modify_icons = '<a href="edit_document.php?' . api_get_cidreq() . '&amp;id=' . $document_id  . '">' .
-                                Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                            $modify_icons = '<a href="edit_document.php?'.api_get_cidreq().'&amp;id='.$document_id.'">'.
+                                Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                         }
                     } else {
-                        $modify_icons .= '&nbsp;' . Display::return_icon('edit_na.png', get_lang('Edit'), array(), ICON_SIZE_SMALL) . '</a>';
+                        $modify_icons .= '&nbsp;'.Display::return_icon('edit_na.png', get_lang('Edit'), array(), ICON_SIZE_SMALL).'</a>';
                     }
                 } else {
                     if ($extension == 'svg' && api_browser_support('svg') && api_get_setting('enabled_support_svg') == 'true') {
-                        $modify_icons = '<a href="edit_draw.php?' . api_get_cidreq() . '&amp;id=' . $document_id  . '">' .
-                            Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
-                    } elseif (in_array($extension, $web_odf_extension_list)  && api_get_setting('enabled_support_odf') === true) {
-                        $modify_icons = '<a href="edit_odf.php?' . api_get_cidreq() . '&id=' . $document_id  . '">' .
-                            Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                        $modify_icons = '<a href="edit_draw.php?'.api_get_cidreq().'&amp;id='.$document_id.'">'.
+                            Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
+                    } elseif (in_array($extension, $web_odf_extension_list) && api_get_setting('enabled_support_odf') === true) {
+                        $modify_icons = '<a href="edit_odf.php?'.api_get_cidreq().'&id='.$document_id.'">'.
+                            Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                     } elseif ($extension == 'png' || $extension == 'jpg' || $extension == 'jpeg' || $extension == 'bmp' || $extension == 'gif' || $extension == 'pxd' && api_get_setting('enabled_support_pixlr') == 'true') {
-                        $modify_icons = '<a href="edit_paint.php?' . api_get_cidreq() . '&amp;id=' . $document_id . '">' .
-                            Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                        $modify_icons = '<a href="edit_paint.php?'.api_get_cidreq().'&amp;id='.$document_id.'">'.
+                            Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                     } else {
-                        $modify_icons = '<a href="edit_document.php?' . api_get_cidreq() . '&amp;id=' . $document_id  . '">' .
-                            Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL) . '</a>';
+                        $modify_icons = '<a href="edit_document.php?'.api_get_cidreq().'&amp;id='.$document_id.'">'.
+                            Display::return_icon('edit.png', get_lang('Modify'), '', ICON_SIZE_SMALL).'</a>';
                     }
                 }
             }
 
             // Move button.
             if ($is_certificate_mode || in_array($path, DocumentManager::get_system_folders())) {
-                $modify_icons .= '&nbsp;' . Display::return_icon('move_na.png', get_lang('Move'), array(), ICON_SIZE_SMALL) . '</a>';
+                $modify_icons .= '&nbsp;'.Display::return_icon('move_na.png', get_lang('Move'), array(), ICON_SIZE_SMALL).'</a>';
             } else {
                 if (api_get_session_id()) {
                     if ($document_data['session_id'] == api_get_session_id()) {
-                        $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;id=' . $parent_id . '&amp;move=' . $document_id .  '">' .
-                            Display::return_icon('move.png', get_lang('Move'), array(), ICON_SIZE_SMALL) . '</a>';
+                        $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$parent_id.'&amp;move='.$document_id.'">'.
+                            Display::return_icon('move.png', get_lang('Move'), array(), ICON_SIZE_SMALL).'</a>';
                     } else {
-                        $modify_icons .= '&nbsp;' . Display::return_icon('move_na.png', get_lang('Move'), array(), ICON_SIZE_SMALL) . '</a>';
+                        $modify_icons .= '&nbsp;'.Display::return_icon('move_na.png', get_lang('Move'), array(), ICON_SIZE_SMALL).'</a>';
                     }
                 } else {
-                    $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;id=' . $parent_id . '&amp;move=' . $document_id .  '">' .
-                        Display::return_icon('move.png', get_lang('Move'), array(), ICON_SIZE_SMALL) . '</a>';
+                    $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$parent_id.'&amp;move='.$document_id.'">'.
+                        Display::return_icon('move.png', get_lang('Move'), array(), ICON_SIZE_SMALL).'</a>';
                 }
             }
 
             //Visibility button
             if ($is_certificate_mode) {
-                $modify_icons .= '&nbsp;' . Display::return_icon($visibility_icon . '.png', get_lang('VisibilityCannotBeChanged'), array(), ICON_SIZE_SMALL) . '</a>';
+                $modify_icons .= '&nbsp;'.Display::return_icon($visibility_icon.'.png', get_lang('VisibilityCannotBeChanged'), array(), ICON_SIZE_SMALL).'</a>';
             } else {
                 if (api_is_allowed_to_edit() || api_is_platform_admin()) {
                     if ($visibility_icon == 'invisible') {
@@ -5699,14 +5699,14 @@ 
                     } else {
                         $tip_visibility = get_lang('Hide');
                     }
-                    $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;id=' . $parent_id . '&amp;' . $visibility_command . '=' . $id . '&amp;' . $sort_params . '">' .
-                        Display::return_icon($visibility_icon . '.png', $tip_visibility, '', ICON_SIZE_SMALL) . '</a>';
+                    $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$parent_id.'&amp;'.$visibility_command.'='.$id.'&amp;'.$sort_params.'">'.
+                        Display::return_icon($visibility_icon.'.png', $tip_visibility, '', ICON_SIZE_SMALL).'</a>';
                 }
             }
 
             // Delete button
             if (in_array($path, DocumentManager::get_system_folders())) {
-                $modify_icons .= '&nbsp;' . Display::return_icon('delete_na.png', get_lang('ThisFolderCannotBeDeleted'), array(), ICON_SIZE_SMALL);
+                $modify_icons .= '&nbsp;'.Display::return_icon('delete_na.png', get_lang('ThisFolderCannotBeDeleted'), array(), ICON_SIZE_SMALL);
             } else {
                 $titleToShow = addslashes(basename($document_data['title']));
 
@@ -5714,23 +5714,23 @@ 
                     $_GET['curdirpath'] == '/certificates' &&
                     DocumentManager::get_default_certificate_id(api_get_course_id()) == $id
                 ) {
-                    $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;curdirpath=' . $curdirpath . '&action=delete_item&id='.$parent_id.'&deleteid='.$document_id.'&amp;' . $sort_params . 'delete_certificate_id=' . $id . '" onclick="return confirmation(\'' . $titleToShow . '\');">' .
-                        Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL) . '</a>';
+                    $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;curdirpath='.$curdirpath.'&action=delete_item&id='.$parent_id.'&deleteid='.$document_id.'&amp;'.$sort_params.'delete_certificate_id='.$id.'" onclick="return confirmation(\''.$titleToShow.'\');">'.
+                        Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL).'</a>';
                 } else {
                     if ($is_certificate_mode) {
-                        $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;curdirpath=' . $curdirpath . '&action=delete_item&id='.$parent_id.'&deleteid=' . $document_id  . '&amp;' . $sort_params . '" onclick="return confirmation(\'' . $titleToShow . '\');">' .
-                            Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL) . '</a>';
+                        $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;curdirpath='.$curdirpath.'&action=delete_item&id='.$parent_id.'&deleteid='.$document_id.'&amp;'.$sort_params.'" onclick="return confirmation(\''.$titleToShow.'\');">'.
+                            Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL).'</a>';
                     } else {
                         if (api_get_session_id()) {
                             if ($document_data['session_id'] == api_get_session_id()) {
-                                $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;curdirpath=' . $curdirpath . '&action=delete_item&id='.$parent_id.'&deleteid='.$document_id  . '&amp;' . $sort_params . '" onclick="return confirmation(\'' . $titleToShow . '\');">'.
-                                    Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL) . '</a>';
+                                $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;curdirpath='.$curdirpath.'&action=delete_item&id='.$parent_id.'&deleteid='.$document_id.'&amp;'.$sort_params.'" onclick="return confirmation(\''.$titleToShow.'\');">'.
+                                    Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL).'</a>';
                             } else {
-                                $modify_icons .= '&nbsp;' . Display::return_icon('delete_na.png', get_lang('ThisFolderCannotBeDeleted'), array(), ICON_SIZE_SMALL);
+                                $modify_icons .= '&nbsp;'.Display::return_icon('delete_na.png', get_lang('ThisFolderCannotBeDeleted'), array(), ICON_SIZE_SMALL);
                             }
                         } else {
-                            $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;curdirpath=' . $curdirpath . '&action=delete_item&id='.$parent_id.'&deleteid='.$document_id . '&amp;' . $sort_params . '" onclick="return confirmation(\'' . $titleToShow. '\');">' .
-                                Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL) . '</a>';
+                            $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;curdirpath='.$curdirpath.'&action=delete_item&id='.$parent_id.'&deleteid='.$document_id.'&amp;'.$sort_params.'" onclick="return confirmation(\''.$titleToShow.'\');">'.
+                                Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL).'</a>';
                         }
                     }
                 }
@@ -5742,15 +5742,15 @@ 
                 // nothing to do
             } else {
                 if ($usePpt2lp && $formatType) {
-                    $modify_icons .= '&nbsp;<a class="convertAction" href="#" ' .
-                        'data-documentId = ' . $document_id .
-                        ' data-formatType = ' . $formatType . '>' .
+                    $modify_icons .= '&nbsp;<a class="convertAction" href="#" '.
+                        'data-documentId = '.$document_id.
+                        ' data-formatType = '.$formatType.'>'.
                         Display::return_icon(
                             'convert.png',
                             get_lang('Convert'),
                             array(),
                             ICON_SIZE_SMALL
-                        ) . '</a>';
+                        ).'</a>';
                 }
             }
         }
@@ -5758,8 +5758,8 @@ 
         if ($type == 'file' && ($extension == 'html' || $extension == 'htm')) {
             if ($is_template == 0) {
                 if ((isset($_GET['curdirpath']) && $_GET['curdirpath'] != '/certificates') || !isset($_GET['curdirpath'])) {
-                    $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;curdirpath=' . $curdirpath . '&amp;add_as_template=' . $id .  '&amp;' . $sort_params . '">' .
-                        Display::return_icon('wizard.png', get_lang('AddAsTemplate'), array(), ICON_SIZE_SMALL) . '</a>';
+                    $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;curdirpath='.$curdirpath.'&amp;add_as_template='.$id.'&amp;'.$sort_params.'">'.
+                        Display::return_icon('wizard.png', get_lang('AddAsTemplate'), array(), ICON_SIZE_SMALL).'</a>';
                 }
                 if (isset($_GET['curdirpath']) && $_GET['curdirpath'] == '/certificates') {//allow attach certificate to course
                     $visibility_icon_certificate = 'nocertificate';
@@ -5773,21 +5773,21 @@ 
                         $certificate = get_lang('NoDefaultCertificate');
                     }
                     if (isset($_GET['selectcat'])) {
-                        $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;curdirpath=' . $curdirpath . '&amp;selectcat=' . intval($_GET['selectcat']) . '&amp;set_certificate=' . $id . '&amp;' . $sort_params . '">';
+                        $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;curdirpath='.$curdirpath.'&amp;selectcat='.intval($_GET['selectcat']).'&amp;set_certificate='.$id.'&amp;'.$sort_params.'">';
                         $modify_icons .= Display::return_icon($visibility_icon_certificate.'.png', $certificate);
                         $modify_icons .= '</a>';
                         if ($is_preview) {
-                            $modify_icons .= '&nbsp;<a target="_blank"  href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;curdirpath=' . $curdirpath . '&amp;set_preview=' . $id . '&amp;' . $sort_params . '" >' .
-                                Display::return_icon('preview_view.png', $preview, '', ICON_SIZE_SMALL) . '</a>';
+                            $modify_icons .= '&nbsp;<a target="_blank"  href="'.api_get_self().'?'.api_get_cidreq().'&amp;curdirpath='.$curdirpath.'&amp;set_preview='.$id.'&amp;'.$sort_params.'" >'.
+                                Display::return_icon('preview_view.png', $preview, '', ICON_SIZE_SMALL).'</a>';
                         }
                     }
                 }
             } else {
-                $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&curdirpath=' . $curdirpath . '&amp;remove_as_template=' . $id. '&amp;' . $sort_params . '">' .
-                    Display::return_icon('wizard_na.png', get_lang('RemoveAsTemplate'), '', ICON_SIZE_SMALL) . '</a>';
+                $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&curdirpath='.$curdirpath.'&amp;remove_as_template='.$id.'&amp;'.$sort_params.'">'.
+                    Display::return_icon('wizard_na.png', get_lang('RemoveAsTemplate'), '', ICON_SIZE_SMALL).'</a>';
             }
-            $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&action=export_to_pdf&id=' . $id . '">' .
-                Display::return_icon('pdf.png', get_lang('Export2PDF'), array(), ICON_SIZE_SMALL) . '</a>';
+            $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&action=export_to_pdf&id='.$id.'">'.
+                Display::return_icon('pdf.png', get_lang('Export2PDF'), array(), ICON_SIZE_SMALL).'</a>';
         }
 
         return $modify_icons;
@@ -5859,7 +5859,7 @@ 
                     // 3. inside a subfolder of the folder you want to move
                     if (($curdirpath != $folder) &&
                         ($folder != $move_file) &&
-                        (substr($folder, 0, strlen($move_file) + 1) != $move_file . '/')
+                        (substr($folder, 0, strlen($move_file) + 1) != $move_file.'/')
                     ) {
                         $path_displayed = $folder;
                         // If document title is used, we have to display titles instead of real paths...
@@ -5876,7 +5876,7 @@ 
             foreach ($folders as $folder) {
                 if (($curdirpath != $folder) &&
                     ($folder != $move_file) &&
-                    (substr($folder, 0, strlen($move_file) + 1) != $move_file . '/')
+                    (substr($folder, 0, strlen($move_file) + 1) != $move_file.'/')
                 ) {
                     // Cannot copy dir into his own subdir
                     $path_displayed = DocumentManager::get_titles_of_path($folder);
@@ -5919,10 +5919,10 @@ 
                 // If this path has soon been stored here we don't need a new query
                 $path_displayed .= $tmp_folders_titles[$tmp_path];
             } else {
-                $sql = 'SELECT title FROM ' . Database::get_course_table(TABLE_DOCUMENT) . '
-                    WHERE c_id = ' . $course_id . ' AND path LIKE BINARY "' . $tmp_path . '"';
+                $sql = 'SELECT title FROM '.Database::get_course_table(TABLE_DOCUMENT).'
+                    WHERE c_id = ' . $course_id.' AND path LIKE BINARY "'.$tmp_path.'"';
                 $rs = Database::query($sql);
-                $tmp_title = '/' . Database::result($rs, 0, 0);
+                $tmp_title = '/'.Database::result($rs, 0, 0);
                 $path_displayed .= $tmp_title;
                 $tmp_folders_titles[$tmp_path] = $tmp_title;
             }
@@ -5959,7 +5959,7 @@ 
         $clean_curdirpath = Security::remove_XSS($curdirpath);
         if ($clean_curdirpath == '/shared_folder') {
             return true;
-        } elseif ($clean_curdirpath == '/shared_folder_session_' . $current_session_id) {
+        } elseif ($clean_curdirpath == '/shared_folder_session_'.$current_session_id) {
             return true;
         } else {
             return false;
@@ -5975,7 +5975,7 @@ 
         $clean_path = Security::remove_XSS($path);
         if (strpos($clean_path, 'shared_folder/sf_user_')) {
             return true;
-        } elseif (strpos($clean_path, 'shared_folder_session_' . $current_session_id . '/sf_user_')) {
+        } elseif (strpos($clean_path, 'shared_folder_session_'.$current_session_id.'/sf_user_')) {
             return true;
         } else {
             return false;
@@ -5988,11 +5988,11 @@ 
      */
     public static function is_my_shared_folder($user_id, $path, $current_session_id)
     {
-        $clean_path = Security::remove_XSS($path) . '/';
+        $clean_path = Security::remove_XSS($path).'/';
         //for security does not remove the last slash
-        $main_user_shared_folder = '/shared_folder\/sf_user_' . $user_id . '\//';
+        $main_user_shared_folder = '/shared_folder\/sf_user_'.$user_id.'\//';
         //for security does not remove the last slash
-        $main_user_shared_folder_session = '/shared_folder_session_' . $current_session_id . '\/sf_user_' . $user_id . '\//';
+        $main_user_shared_folder_session = '/shared_folder_session_'.$current_session_id.'\/sf_user_'.$user_id.'\//';
 
         if (preg_match($main_user_shared_folder, $clean_path)) {
             return true;
@@ -6265,7 +6265,7 @@ 
                 ON (i.c_id = d.c_id)
                 WHERE
                     d.id = i.ref AND
-                    i.tool = '" . TOOL_DOCUMENT . "'
+                    i.tool = '".TOOL_DOCUMENT."'
                     $conditionSession AND
                     i.c_id = $courseId AND
                     d.c_id = $courseId ";
@@ -6273,9 +6273,9 @@ 
         $result = Database::query($sql);
         $documents = Database::store_result($result, 'ASSOC');
         if ($documents) {
-            $course_dir = $courseInfo['directory'] . '/document';
+            $course_dir = $courseInfo['directory'].'/document';
             $sys_course_path = api_get_path(SYS_COURSE_PATH);
-            $base_work_dir = $sys_course_path . $course_dir;
+            $base_work_dir = $sys_course_path.$course_dir;
 
             foreach ($documents as $document) {
                 $documentId = $document['id'];

Doc Comments +23 added lines, -18 removed lines

@@ -277,7 +277,7 @@ 
     /**
      *  @param string
      *  @param string
-     * 	@return true if the user is allowed to see the document, false otherwise
+     * 	@return boolean if the user is allowed to see the document, false otherwise
      * 	@author Sergio A Kessler, first version
      * 	@author Roan Embrechts, bugfix
      *  @todo not only check if a file is visible, but also check if the user is allowed to see the file??
@@ -1529,7 +1529,7 @@ 
      * Return true if the documentpath have visibility=1 as
      * item_property (you should use the is_visible_by_id)
      *
-     * @param string $document_path the relative complete path of the document
+     * @param string $doc_path the relative complete path of the document
      * @param array  $course the _course array info of the document's course
      * @param int
      * @param string
@@ -1615,6 +1615,8 @@ 
      * @param   int
      * @param   int
      * @param bool
+     * @param integer $session_id
+     * @param integer $user_id
      * @return  bool
      */
     public static function is_visible_by_id(
@@ -1966,7 +1968,7 @@ 
      * Remove default certificate
      * @param string $course_id The course code
      * @param int $default_certificate_id The document id of the default certificate
-     * @return void
+     * @return false|null
      */
     public static function remove_attach_certificate($course_id, $default_certificate_id)
     {
@@ -2101,6 +2103,7 @@ 
      * @param	bool  	is file or string html
      * @param	string	type (one of the app tools) - optional (otherwise takes the current item's type)
      * @param	int		level of recursivity we're in
+     * @param string $source_html
      * @return	array	List of file paths. An additional field containing 'local' or 'remote' helps determine
      * if the file should be copied into the zip or just linked
      */
@@ -2940,6 +2943,7 @@ 
 
     /**
      * Obtains the text inside the file with the right parser
+     * @param string $doc_path
      */
     public static function get_text_content($doc_path, $doc_mime)
     {
@@ -3191,6 +3195,7 @@ 
      * Shows a play icon next to the document title in the document list
      * @param int
      * @param string
+     * @param integer|null $i
      * @return string	html content
      */
     public static function generate_media_preview($i, $type = 'simple')
@@ -4089,7 +4094,7 @@ 
     }
 
     /**
-     * @return array
+     * @return string[]
      */
     public static function get_web_odf_extension_list()
     {
@@ -4098,10 +4103,10 @@ 
 
     /**
      * Set of extension allowed to use Jodconverter
-     * @param $mode 'from'
+     * @param string $mode 'from'
      *              'to'
      *              'all'
-     * @param $format   'text'
+     * @param string $format   'text'
      *                  'spreadsheet'
      *                  'presentation'
      *                  'drawing'
@@ -4305,7 +4310,7 @@ 
     }
 
     /**
-     * @return array
+     * @return string[]
      */
     public static function get_system_folders()
     {
@@ -4323,7 +4328,7 @@ 
     }
 
     /**
-     * @return array
+     * @return string[]
      */
     public static function getProtectedFolderFromStudent()
     {
@@ -4479,7 +4484,7 @@ 
      * Requires the ffmpeg lib. In ubuntu: sudo apt-get install ffmpeg
      * @param string $wavFile
      * @param bool $removeWavFileIfSuccess
-     * @return bool
+     * @return string|false
      */
     public static function convertWavToMp3($wavFile, $removeWavFileIfSuccess = false)
     {
@@ -5055,6 +5060,8 @@ 
      * @param string	The current folder (path inside of the "document" directory, including the prefix "/")
      * @param string	Group directory, if empty, prevents documents to be uploaded (because group documents cannot be uploaded in root)
      * @param	boolean	Whether to change the renderer (this will add a template <span> to the QuickForm object displaying the form)
+     * @param string $document_id
+     * @param FormValidator $form
 
      * @return string html form
      */
@@ -5560,9 +5567,6 @@ 
     /**
      * Creates the row of edit icons for a file/folder
      *
-     * @param string $curdirpath current path (cfr open folder)
-     * @param string $type (file/folder)
-     * @param string $path dbase path of file/folder
      * @param int $visibility (1/0)
      * @param int $id dbase id of the document
      * @return string html img tags with hyperlinks
@@ -5896,7 +5900,7 @@ 
     /**
      * Gets the path translated with title of docs and folders
      * @param string $path the real path
-     * @return the path which should be displayed
+     * @return string path which should be displayed
      */
     public static function get_titles_of_path($path)
     {
@@ -5952,7 +5956,8 @@ 
 
     /**
      * Checks whether the user is in shared folder
-     * @return return bool Return true when user is into shared folder
+     * @param integer $current_session_id
+     * @return boolean bool Return true when user is into shared folder
      */
     public static function is_shared_folder($curdirpath, $current_session_id)
     {
@@ -5968,7 +5973,7 @@ 
 
     /**
      * Checks whether the user is into any user shared folder
-     * @return return bool Return true when user is in any user shared folder
+     * @return boolean bool Return true when user is in any user shared folder
      */
     public static function is_any_user_shared_folder($path, $current_session_id)
     {
@@ -6182,7 +6187,7 @@ 
      * @param int $id
      * @param array $courseInfo
      * @param int $sessionId
-     * @return bool
+     * @return boolean|null
      */
     public static function downloadDeletedDocument($id, $courseInfo, $sessionId)
     {
@@ -6201,7 +6206,7 @@ 
      * @param array $courseInfo
      * @param int $sessionId
      *
-     * @return bool
+     * @return false|null
      */
     public static function downloadAllDeletedDocument($courseInfo, $sessionId)
     {
@@ -6240,7 +6245,7 @@ 
      * @param array $courseInfo
      * @param int $sessionId
      *
-     * @return bool
+     * @return false|null
      */
     public static function deleteDocumentsFromSession($courseInfo, $sessionId)
     {

main/inc/lib/career.lib.php

Doc Comments +1 added lines, -1 removed lines

@@ -84,7 +84,7 @@
 
     /**
      * Available driver list.
-     * @return array
+     * @return string[]
      */
     private function getDefaultDriverList()
     {

Spacing +1 added lines, -1 removed lines

@@ -62,7 +62,7 @@
         $promotion = new Promotion();
         $promotion_list = $promotion->get_all_promotions_by_career_id($career_id);
         if (!empty($promotion_list)) {
-            foreach($promotion_list  as $item) {
+            foreach ($promotion_list  as $item) {
                 $params['id']     = $item['id'];
                 $params['status'] = $status;
                 $promotion->update($params);

main/admin/access_urls.php

Indentation +2 added lines, -2 removed lines

@@ -85,12 +85,12 @@
     }
 }
 if(!empty($url_string)) {
-	Display :: display_warning_message(get_lang('AdminShouldBeRegisterInSite').'<br />'.$url_string,false);
+    Display :: display_warning_message(get_lang('AdminShouldBeRegisterInSite').'<br />'.$url_string,false);
 }
 
 // checking the current installation
 if ($current_access_url_id==-1) {
-	Display::display_warning_message(get_lang('URLNotConfiguredPleaseChangedTo').': '.api_get_path(WEB_PATH));
+    Display::display_warning_message(get_lang('URLNotConfiguredPleaseChangedTo').': '.api_get_path(WEB_PATH));
 } elseif(api_is_platform_admin()) {
     $quant= UrlManager::relation_url_user_exist(api_get_user_id(),$current_access_url_id);
     if ($quant==0) {

Spacing +17 added lines, -17 removed lines

@@ -19,7 +19,7 @@ 
     exit;
 }
 
-$interbreadcrumb[] = array ("url" => 'index.php', 'name' => get_lang('PlatformAdmin'));
+$interbreadcrumb[] = array("url" => 'index.php', 'name' => get_lang('PlatformAdmin'));
 $tool_name = get_lang('MultipleAccessURLs');
 Display :: display_header($tool_name);
 
@@ -55,12 +55,12 @@ 
         case 'register':
             // we are going to register the admin
             if (api_is_platform_admin()) {
-                if ($current_access_url_id!=-1) {
+                if ($current_access_url_id != -1) {
                     $url_str = '';
                     foreach ($url_list as $my_url) {
                         if (!in_array($my_url['id'], $my_user_url_list)) {
                             UrlManager::add_user_to_url(api_get_user_id(), $my_url['id']);
-                            $url_str.=$my_url['url'].' <br />';
+                            $url_str .= $my_url['url'].' <br />';
                         }
                     }
                     Display:: display_normal_message(
@@ -84,16 +84,16 @@ 
         $url_string .= $my_url['url'].' <br />';
     }
 }
-if(!empty($url_string)) {
-	Display :: display_warning_message(get_lang('AdminShouldBeRegisterInSite').'<br />'.$url_string,false);
+if (!empty($url_string)) {
+	Display :: display_warning_message(get_lang('AdminShouldBeRegisterInSite').'<br />'.$url_string, false);
 }
 
 // checking the current installation
-if ($current_access_url_id==-1) {
+if ($current_access_url_id == -1) {
 	Display::display_warning_message(get_lang('URLNotConfiguredPleaseChangedTo').': '.api_get_path(WEB_PATH));
-} elseif(api_is_platform_admin()) {
-    $quant= UrlManager::relation_url_user_exist(api_get_user_id(),$current_access_url_id);
-    if ($quant==0) {
+} elseif (api_is_platform_admin()) {
+    $quant = UrlManager::relation_url_user_exist(api_get_user_id(), $current_access_url_id);
+    if ($quant == 0) {
         Display:: display_warning_message(
             '<a href="'.api_get_self().'?action=register&sec_token='.$parameters['sec_token'].'">'.get_lang('ClickToRegisterAdmin').'</a>',
             false
@@ -142,16 +142,16 @@ 
 
     //Status
     $active = $row['active'];
-    if ($active=='1') {
-        $action='lock';
-        $image='right';
+    if ($active == '1') {
+        $action = 'lock';
+        $image = 'right';
     }
-    if ($active=='0') {
-        $action='unlock';
-        $image='wrong';
+    if ($active == '0') {
+        $action = 'unlock';
+        $image = 'wrong';
     }
     // you cannot lock the default
-    if ($row['id']=='1') {
+    if ($row['id'] == '1') {
         $status = Display::return_icon($image.'.gif', get_lang(ucfirst($action)));
     } else {
         $status = '<a href="access_urls.php?action='.$action.'&amp;url_id='.$row['id'].'">'.
@@ -161,7 +161,7 @@ 
     $url_id = $row['id'];
     $actions = Display::url(Display::return_icon('edit.png', get_lang('Edit'), array(), ICON_SIZE_SMALL), "access_url_edit.php?url_id=$url_id");
     if ($url_id != '1') {
-        $actions .= '<a href="access_urls.php?action=delete_url&amp;url_id='.$url_id.'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang("ConfirmYourChoice"),ENT_QUOTES,$charset))."'".')) return false;">'.
+        $actions .= '<a href="access_urls.php?action=delete_url&amp;url_id='.$url_id.'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES, $charset))."'".')) return false;">'.
             Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL).'</a>';
     }
     $urls[] = array($url, $description, $status, $actions);

main/calendar/agenda.php

Spacing +1 added lines, -1 removed lines

@@ -274,7 +274,7 @@
             }
             break;
         case "delete":
-            if (!(api_is_course_coach() && !api_is_element_in_the_session(TOOL_AGENDA, $eventId) )) {
+            if (!(api_is_course_coach() && !api_is_element_in_the_session(TOOL_AGENDA, $eventId))) {
                 // a coach can only delete an element belonging to his session
                 $content = $agenda->deleteEvent($eventId);
             }

main/inc/lib/formvalidator/FormValidator.class.php

Spacing +12 added lines, -12 removed lines

@@ -99,7 +99,7 @@ 
         $renderer->setHeaderTemplate('<legend>{header}</legend>');
 
         //Set required field template
-        $this->setRequiredNote('<span class="form_required">*</span> <small>' . get_lang('ThisFieldIsRequired') . '</small>');
+        $this->setRequiredNote('<span class="form_required">*</span> <small>'.get_lang('ThisFieldIsRequired').'</small>');
         $noteTemplate = <<<EOT
 	<div class="form-group">
 		<div class="col-sm-offset-2 col-sm-10">{requiredNote}</div>
@@ -851,9 +851,9 @@ 
             $label = get_lang('PleaseStandBy');
         }
         $this->with_progress_bar = true;
-        $this->updateAttributes("onsubmit=\"javascript: myUpload.start('dynamic_div','".Display::returnIconPath('progress_bar.gif')."','" . $label . "','" . $this->getAttribute('id') . "')\"");
-        $this->addElement('html', '<script language="javascript" src="' . api_get_path(WEB_LIBRARY_PATH) . 'javascript/upload.js" type="text/javascript"></script>');
-        $this->addElement('html', '<script type="text/javascript">var myUpload = new upload(' . (abs(intval($delay)) * 1000) . ');</script>');
+        $this->updateAttributes("onsubmit=\"javascript: myUpload.start('dynamic_div','".Display::returnIconPath('progress_bar.gif')."','".$label."','".$this->getAttribute('id')."')\"");
+        $this->addElement('html', '<script language="javascript" src="'.api_get_path(WEB_LIBRARY_PATH).'javascript/upload.js" type="text/javascript"></script>');
+        $this->addElement('html', '<script type="text/javascript">var myUpload = new upload('.(abs(intval($delay)) * 1000).');</script>');
     }
 
     /**
@@ -870,11 +870,11 @@ 
             return;
         }
 
-        $xajax_upload = new xajax(api_get_path(WEB_LIBRARY_PATH) . 'upload.xajax.php');
+        $xajax_upload = new xajax(api_get_path(WEB_LIBRARY_PATH).'upload.xajax.php');
 
         $xajax_upload->registerFunction('updateProgress');
         // IMPORTANT : must be the first element of the form
-        $el = $this->insertElementBefore(FormValidator::createElement('html', '<input type="hidden" name="UPLOAD_IDENTIFIER" value="' . $upload_id . '" />'), $element_after);
+        $el = $this->insertElementBefore(FormValidator::createElement('html', '<input type="hidden" name="UPLOAD_IDENTIFIER" value="'.$upload_id.'" />'), $element_after);
 
         $this->addElement('html', '<br />');
 
@@ -882,7 +882,7 @@ 
         $this->addElement(
             'html',
             '<div id="dynamic_div_container" style="display:none">
-                <div id="dynamic_div_label">' . get_lang('UploadFile') . '</div>
+                <div id="dynamic_div_label">' . get_lang('UploadFile').'</div>
                 <div id="dynamic_div_frame" style="width:214px; height:12px; border:1px solid grey; background-image:url(' . Display::returnIconPath('real_upload_frame.gif').');">
                     <div id="dynamic_div_filled" style="width:0%;height:100%;background-image:url(' . Display::returnIconPath('real_upload_step.gif').');background-repeat:repeat-x;background-position:center;"></div>
                 </div>
@@ -893,7 +893,7 @@ 
             $this->addElement('html', '
 			<div id="dynamic_div_waiter_container" style="display:none">
 				<div id="dynamic_div_waiter_label">
-					' . get_lang('SlideshowConversion') . '
+					' . get_lang('SlideshowConversion').'
 				</div>
 				<div id="dynamic_div_waiter_frame">
 					'.Display::return_icon('real_upload_frame.gif').'
@@ -903,18 +903,18 @@ 
         }
 
         // Get the xajax code
-        $this->addElement('html', $xajax_upload->getJavascript(api_get_path(WEB_LIBRARY_PATH) . 'xajax'));
+        $this->addElement('html', $xajax_upload->getJavascript(api_get_path(WEB_LIBRARY_PATH).'xajax'));
 
         // Get the upload code
-        $this->addElement('html', '<script language="javascript" src="' . api_get_path(WEB_LIBRARY_PATH) . 'javascript/upload.js" type="text/javascript"></script>');
-        $this->addElement('html', '<script type="text/javascript">var myUpload = new upload(' . (abs(intval($delay)) * 1000) . ');</script>');
+        $this->addElement('html', '<script language="javascript" src="'.api_get_path(WEB_LIBRARY_PATH).'javascript/upload.js" type="text/javascript"></script>');
+        $this->addElement('html', '<script type="text/javascript">var myUpload = new upload('.(abs(intval($delay)) * 1000).');</script>');
 
         if (!$wait_after_upload) {
             $wait_after_upload = 0;
         }
 
         // Add the upload event
-        $this->updateAttributes("onsubmit=\"javascript: myUpload.startRealUpload('dynamic_div','" . $upload_id . "','" . $this->getAttribute('id') . "'," . $wait_after_upload . ")\"");
+        $this->updateAttributes("onsubmit=\"javascript: myUpload.startRealUpload('dynamic_div','".$upload_id."','".$this->getAttribute('id')."',".$wait_after_upload.")\"");
     }
 
     /**

Doc Comments +1 added lines, -1 removed lines

@@ -954,7 +954,7 @@
     /**
      * This function has been created for avoiding changes directly within QuickForm class.
      * When we use it, the element is threated as 'required' to be dealt during validation.
-     * @param array $element The array of elements
+     * @param array $elements The array of elements
      * @param string $message The message displayed
      */
     public function add_multiple_required_rule($elements, $message)

main/forum/newthread.php

Spacing +6 added lines, -6 removed lines

@@ -54,12 +54,12 @@ 
 
 /* Breadcrumbs */
 
-if (isset($_SESSION['gradebook'])){
+if (isset($_SESSION['gradebook'])) {
     $gradebook = Security::remove_XSS($_SESSION['gradebook']);
 }
 
 if (!empty($gradebook) && $gradebook == 'view') {
-    $interbreadcrumb[] = array (
+    $interbreadcrumb[] = array(
         'url' => '../gradebook/'.Security::remove_XSS($_SESSION['gradebook_dest']),
         'name' => get_lang('ToolGradebook')
     );
@@ -117,7 +117,7 @@ 
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'group/group.php?'.$cidreq, 'name' => get_lang('Groups'));
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'group/group_space.php?'.$cidreq, 'name' => get_lang('GroupSpace').' '.$groupProperties['name']);
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/viewforum.php?'.$cidreq.'&forum='.intval($_GET['forum']), 'name' => $current_forum['forum_title']);
-    $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/newthread.php?'.$cidreq.'&forum='.intval($_GET['forum']),'name' => get_lang('NewTopic'));
+    $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/newthread.php?'.$cidreq.'&forum='.intval($_GET['forum']), 'name' => get_lang('NewTopic'));
 } else {
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/index.php?'.$cidreq, 'name' => $nameTools);
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/viewforumcategory.php?'.$cidreq.'&forumcategory='.$current_forum_category['cat_id'], 'name' => $current_forum_category['cat_title']);
@@ -127,9 +127,9 @@ 
 
 /* Resource Linker */
 if (isset($_POST['add_resources']) AND $_POST['add_resources'] == get_lang('Resources')) {
-    $_SESSION['formelements']	= $_POST;
-    $_SESSION['origin']			= $_SERVER['REQUEST_URI'];
-    $_SESSION['breadcrumbs']	= $interbreadcrumb;
+    $_SESSION['formelements'] = $_POST;
+    $_SESSION['origin'] = $_SERVER['REQUEST_URI'];
+    $_SESSION['breadcrumbs'] = $interbreadcrumb;
     header('Location: ../resourcelinker/resourcelinker.php');
     exit;
 }

main/forum/editthread.php

Spacing +3 added lines, -3 removed lines

@@ -45,7 +45,7 @@ 
 }
 
 if (!empty($gradebook) && $gradebook == 'view') {
-    $interbreadcrumb[] = array (
+    $interbreadcrumb[] = array(
         'url' => '../gradebook/'.Security::remove_XSS($_SESSION['gradebook_dest']),
         'name' => get_lang('ToolGradebook')
     );
@@ -107,7 +107,7 @@ 
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'group/group.php?'.$cidreq, 'name' => get_lang('Groups'));
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'group/group_space.php?'.$cidreq, 'name' => get_lang('GroupSpace').' '.$groupProperties['name']);
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/viewforum.php?'.$cidreq.'&forum='.intval($_GET['forum']), 'name' => $currentForum['forum_title']);
-    $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/newthread.php?'.$cidreq.'&forum='.intval($_GET['forum']),'name' => get_lang('EditThread'));
+    $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/newthread.php?'.$cidreq.'&forum='.intval($_GET['forum']), 'name' => get_lang('EditThread'));
 } else {
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/index.php?'.$cidreq, 'name' => $nameTools);
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/viewforumcategory.php?'.$cidreq.'&forumcategory='.$currentForumCategory['cat_id'], 'name' => $currentForumCategory['cat_title']);
@@ -156,7 +156,7 @@ 
 echo '<div class="actions">';
 echo '<span style="float:right;">'.search_link().'</span>';
 echo '<a href="viewforum.php?forum='.intval($_GET['forum']).'&'.$cidreq.'">'.
-    Display::return_icon('back.png',get_lang('BackToForum'),'',ICON_SIZE_MEDIUM).'</a>';
+    Display::return_icon('back.png', get_lang('BackToForum'), '', ICON_SIZE_MEDIUM).'</a>';
 echo '</div>';
 
 $threadData = getThreadInfo($threadId, $cId);

main/forum/forumsearch.php

Spacing +4 added lines, -4 removed lines

@@ -40,7 +40,7 @@ 
 // Are we in a lp ?
 $origin = '';
 if (isset($_GET['origin'])) {
-    $origin =  Security::remove_XSS($_GET['origin']);
+    $origin = Security::remove_XSS($_GET['origin']);
 }
 
 // Name of the tool
@@ -48,12 +48,12 @@ 
 
 // Breadcrumbs
 
-if (isset($_SESSION['gradebook'])){
+if (isset($_SESSION['gradebook'])) {
     $gradebook = $_SESSION['gradebook'];
 }
 
 if (!empty($gradebook) && $gradebook == 'view') {
-    $interbreadcrumb[] = array (
+    $interbreadcrumb[] = array(
         'url' => '../gradebook/'.$_SESSION['gradebook_dest'],
         'name' => get_lang('ToolGradebook')
     );
@@ -66,7 +66,7 @@ 
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'group/group.php?'.api_get_cidreq(), 'name' => get_lang('Groups'));
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'group/group_space.php?'.api_get_cidreq(), 'name' => get_lang('GroupSpace').' ('.$group_properties['name'].')');
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/viewforum.php?origin='.$origin.'&forum='.intval($_GET['forum']).'&'.api_get_cidreq(), 'name' => prepare4display($current_forum['forum_title']));
-    $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/forumsearch.php?'.api_get_cidreq(),'name' => get_lang('ForumSearch'));
+    $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/forumsearch.php?'.api_get_cidreq(), 'name' => get_lang('ForumSearch'));
 } else {
     $interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'forum/index.php?'.api_get_cidreq(), 'name' => $nameTools);
     $nameTools = get_lang('ForumSearch');

main/document/slideshow.php

Spacing +50 added lines, -50 removed lines

@@ -64,7 +64,7 @@ 
 if ($slide_id != 'all') {
 	$image = null;
 	if (isset($image_files_only[$slide])) {
-		$image = $sys_course_path . $_course['path'] . '/document' . $folder . $image_files_only[$slide];
+		$image = $sys_course_path.$_course['path'].'/document'.$folder.$image_files_only[$slide];
 	}
 	if (file_exists($image)) {
 		echo '<div class="actions-pagination">';
@@ -105,7 +105,7 @@ 
             $last = Display::return_icon('action_last_na.png', get_lang('LastSlide'));
 		} else {
 			$imgn = 'action_next.png';
-			$last = '<a href="slideshow.php?slide_id='.($total_slides-1).'&curdirpath='.$pathurl.'">
+			$last = '<a href="slideshow.php?slide_id='.($total_slides - 1).'&curdirpath='.$pathurl.'">
 			        '.Display::return_icon('action_last.png', get_lang('LastSlide')).'
                 </a>';
 		}
@@ -122,18 +122,18 @@ 
 
 // Exit the slideshow
 echo '<a href="document.php?action=exit_slideshow&curdirpath='.$pathurl.'&'.api_get_cidreq().'">'.
-    Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('DocumentsOverview'),'',ICON_SIZE_MEDIUM).'</a>';
+    Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('DocumentsOverview'), '', ICON_SIZE_MEDIUM).'</a>';
 
 // Show thumbnails
 if ($slide_id != 'all') {
 	echo '<a href="slideshow.php?slide_id=all&curdirpath='.$pathurl.'&'.api_get_cidreq().'">'.
-        Display::return_icon('thumbnails.png',get_lang('ShowThumbnails'),'',ICON_SIZE_MEDIUM).'</a>';
+        Display::return_icon('thumbnails.png', get_lang('ShowThumbnails'), '', ICON_SIZE_MEDIUM).'</a>';
 } else {
-	echo Display::return_icon('thumbnails_na.png',get_lang('ShowThumbnails'),'',ICON_SIZE_MEDIUM);
+	echo Display::return_icon('thumbnails_na.png', get_lang('ShowThumbnails'), '', ICON_SIZE_MEDIUM);
 }
 // Slideshow options
 echo '<a href="slideshowoptions.php?curdirpath='.$pathurl.'&'.api_get_cidreq().'">'.
-    Display::return_icon('settings.png', get_lang('SetSlideshowOptions'),'',ICON_SIZE_MEDIUM).'</a>';
+    Display::return_icon('settings.png', get_lang('SetSlideshowOptions'), '', ICON_SIZE_MEDIUM).'</a>';
 
 echo '</div>';
 echo '<br />';
@@ -157,7 +157,7 @@ 
 }
 $target_width = $target_height = null;
 // The target height and width depends if we choose resizing or no resizing
-if (isset($_SESSION["image_resizing"]) &&  $_SESSION["image_resizing"] == "resizing") {
+if (isset($_SESSION["image_resizing"]) && $_SESSION["image_resizing"] == "resizing") {
 	$target_width = $_SESSION["image_resizing_width"];
 	$target_height = $_SESSION["image_resizing_height"];
 }
@@ -165,7 +165,7 @@ 
 /*	THUMBNAIL VIEW */
 
 // This is for viewing all the images in the slideshow as thumbnails.
-$image_tag = array ();
+$image_tag = array();
 $html = '';
 if ($slide_id == 'all') {
 
@@ -173,16 +173,16 @@ 
     $allowed_thumbnail_types = array('jpg', 'jpeg', 'gif', 'png');
 	$max_thumbnail_width     = 250;
 	$max_thumbnail_height    = 250;
-	$png_compression	     = 0;//0(none)-9
-	$jpg_quality  	         = 75;//from 0 to 100 (default is 75). More quality less compression
+	$png_compression	     = 0; //0(none)-9
+	$jpg_quality = 75; //from 0 to 100 (default is 75). More quality less compression
 
 	$directory_thumbnails = $sys_course_path.$_course['path'].'/document'.$folder.'.thumbs/';
 
 	//Other parameters only for show tumbnails
-	$row_items 			     = 4;//only in slideshow.php
-	$number_image 			 = 7;//num icons cols to show
-	$thumbnail_width_frame=$max_thumbnail_width;//optional $max_thumbnail_width+x
-	$thumbnail_height_frame=$max_thumbnail_height;
+	$row_items = 4; //only in slideshow.php
+	$number_image = 7; //num icons cols to show
+	$thumbnail_width_frame = $max_thumbnail_width; //optional $max_thumbnail_width+x
+	$thumbnail_height_frame = $max_thumbnail_height;
 
 	// Create the template_thumbnails folder (if no exist)
 
@@ -195,20 +195,20 @@ 
 
 		foreach ($image_files_only as $one_image_file) {
 			$image = $sys_course_path.$_course['path'].'/document'.$folder.$one_image_file;
-			$image_thumbnail= $directory_thumbnails.'.'.$one_image_file;
+			$image_thumbnail = $directory_thumbnails.'.'.$one_image_file;
 
 			if (file_exists($image)) {
 				//check thumbnail
 				$imagetype = explode(".", $image);
                 //or check $imagetype = image_type_to_extension(exif_imagetype($image), false);
-				$imagetype = strtolower($imagetype[count($imagetype)-1]);
+				$imagetype = strtolower($imagetype[count($imagetype) - 1]);
 
-				if(in_array($imagetype,$allowed_thumbnail_types)) {
-					if (!file_exists($image_thumbnail)){
+				if (in_array($imagetype, $allowed_thumbnail_types)) {
+					if (!file_exists($image_thumbnail)) {
                         //run each once we view thumbnails is too heavy, then need move into  !file_exists($image_thumbnail, and only run when haven't the thumbnail
 						$original_image_size = api_getimagesize($image);
 
-						switch($imagetype) {
+						switch ($imagetype) {
 							case 'gif':
 								$source_img = imagecreatefromgif($image);
 								break;
@@ -230,17 +230,17 @@ 
                             $max_thumbnail_height
                         );
 
-						if($max_thumbnail_width>$original_image_size['width'] && $max_thumbnail_height>$original_image_size['height']){
-							$new_thumbnail_size['width']=$original_image_size['width'];
-							$new_thumbnail_size['height']=$original_image_size['height'];
+						if ($max_thumbnail_width > $original_image_size['width'] && $max_thumbnail_height > $original_image_size['height']) {
+							$new_thumbnail_size['width'] = $original_image_size['width'];
+							$new_thumbnail_size['height'] = $original_image_size['height'];
 						}
 
 						$crop = imagecreatetruecolor($new_thumbnail_size['width'], $new_thumbnail_size['height']);
 
 						// preserve transparency
-						if($imagetype == "png"){
+						if ($imagetype == "png") {
 							imagesavealpha($crop, true);
-							$color = imagecolorallocatealpha($crop,0x00,0x00,0x00,127);
+							$color = imagecolorallocatealpha($crop, 0x00, 0x00, 0x00, 127);
 							imagefill($crop, 0, 0, $color);
 						}
 
@@ -248,7 +248,7 @@ 
 							$transindex = imagecolortransparent($source_img);
                             $palletsize = imagecolorstotal($source_img);
 							 //GIF89a for transparent and anim (first clip), either GIF87a
-							 if ($transindex >= 0 && $transindex < $palletsize){
+							 if ($transindex >= 0 && $transindex < $palletsize) {
 								 $transcol = imagecolorsforindex($source_img, $transindex);
 								 $transindex = imagecolorallocatealpha($crop, $transcol['red'], $transcol['green'], $transcol['blue'], 127);
 								 imagefill($crop, 0, 0, $transindex);
@@ -272,16 +272,16 @@ 
 
 						switch ($imagetype) {
 							case 'gif':
-								imagegif($crop,$image_thumbnail);
+								imagegif($crop, $image_thumbnail);
 								break;
 							case 'jpg':
-								imagejpeg($crop,$image_thumbnail,$jpg_quality);
+								imagejpeg($crop, $image_thumbnail, $jpg_quality);
 								break;
 							case 'jpeg':
-								imagejpeg($crop,$image_thumbnail,$jpg_quality);
+								imagejpeg($crop, $image_thumbnail, $jpg_quality);
 								break;
 							case 'png':
-								imagepng($crop,$image_thumbnail,$png_compression);
+								imagepng($crop, $image_thumbnail, $png_compression);
 								break;
 						}
 
@@ -291,26 +291,26 @@ 
 
 					//show thumbnail and link
 
-					$one_image_thumbnail_file='.thumbs/.'.$one_image_file;//get path thumbnail
+					$one_image_thumbnail_file = '.thumbs/.'.$one_image_file; //get path thumbnail
 					$doc_url = ($path && $path !== '/') ? $path.'/'.$one_image_thumbnail_file : $path.$one_image_thumbnail_file;
 					$image_tag[] = '<img class="img-gallery" src="download.php?doc_url='.$doc_url.'" border="0" title="'.$one_image_file.'">';
 				} else {
 					//if images aren't support by gd (not gif, jpg, jpeg, png)
-					if ($imagetype=="bmp") {
+					if ($imagetype == "bmp") {
                         // use getimagesize instead api_getimagesize($image); becasuse api_getimagesize doesn't support bmp files. Put here for each show, only for a few bmp files isn't heavy
 						$original_image_size = getimagesize($image);
-						if ($max_thumbnail_width<$original_image_size[0] || $max_thumbnail_height<$original_image_size[1]){
-							$thumbnail_size=api_calculate_image_size($original_image_size[0], $original_image_size[1], $max_thumbnail_width, $max_thumbnail_height);//don't use resize_image because doesn't run with bmp files
+						if ($max_thumbnail_width < $original_image_size[0] || $max_thumbnail_height < $original_image_size[1]) {
+							$thumbnail_size = api_calculate_image_size($original_image_size[0], $original_image_size[1], $max_thumbnail_width, $max_thumbnail_height); //don't use resize_image because doesn't run with bmp files
 							$image_height = $thumbnail_size['height'];
 							$image_width  = $thumbnail_size['width'];
 						} else {
-							$image_height=$original_image_size[0];
-							$image_width=$original_image_size[1];
+							$image_height = $original_image_size[0];
+							$image_width = $original_image_size[1];
 						}
 					} else {
 						//example for svg files,...
-						$image_width=$max_thumbnail_width;
-						$image_height=$max_thumbnail_height;
+						$image_width = $max_thumbnail_width;
+						$image_height = $max_thumbnail_height;
 					}
 
 					$doc_url = ($path && $path !== '/') ? $path.'/'.$one_image_file : $path.$one_image_file;
@@ -326,7 +326,7 @@ 
 
 	$i = 0;
 	$count_image = count($image_tag);
-	$number_iteration = ceil($count_image/$number_image);
+	$number_iteration = ceil($count_image / $number_image);
 	$p = 0;
     $html = '';
     $html .= '<div class="gallery">';
@@ -338,7 +338,7 @@ 
                             $html .= '<a class="canvas-two" href="slideshow.php?slide_id='.$p.'&curdirpath='.$pathurl.'">';
                             $html .= '<div class="frame">';
                             $html .= '<div class="photo">';
-                            $html .=  $image_tag[$p];
+                            $html .= $image_tag[$p];
                             $html .= '</div>';
                             $html .= '</div>';
                             $html .= '</a>';
@@ -393,7 +393,7 @@ 
 
 		list($width, $height) = getimagesize($image);
 		// Auto resize
-		if (isset($_SESSION["image_resizing"]) &&  $_SESSION["image_resizing"] == 'resizing') {
+		if (isset($_SESSION["image_resizing"]) && $_SESSION["image_resizing"] == 'resizing') {
 		?>
 
 		<script type="text/javascript">
@@ -410,7 +410,7 @@ 
 				start_height=initial_height;
 			}
 
-			document.write('<img id="image"  src="<?php echo  'download.php?doc_url='.$path.'/'.$image_files_only[$slide]; ?>" width="'+start_width+'" height="'+start_height+'"  border="0"  alt="<?php echo $image_files_only[$slide] ;?>">');
+			document.write('<img id="image"  src="<?php echo  'download.php?doc_url='.$path.'/'.$image_files_only[$slide]; ?>" width="'+start_width+'" height="'+start_height+'"  border="0"  alt="<?php echo $image_files_only[$slide]; ?>">');
 
 			function resizeImage() {
 
@@ -454,7 +454,7 @@ 
 		echo '</a>';
         echo '<div class="caption text-center">';
         echo Display::tag('h3', $row['title']);
-        echo '<p>' . $row['comment'] . '</p>';
+        echo '<p>'.$row['comment'].'</p>';
         echo '</div>';
         echo '</div>';
 
@@ -467,7 +467,7 @@ 
                 $resize_info = get_lang('Resizing').'<br />';
                 $resize_width = $_SESSION["image_resizing_width"].' x ';
                 $resize_height = $_SESSION['image_resizing_height'];
-            } elseif (isset($_SESSION['image_resizing']) && $_SESSION['image_resizing'] != 'noresizing'){
+            } elseif (isset($_SESSION['image_resizing']) && $_SESSION['image_resizing'] != 'noresizing') {
                 $resize_info = get_lang('Resizing').'<br />';
                 $resize_width = get_lang('Auto').' x ';
                 $resize_height = get_lang('Auto');
@@ -478,10 +478,10 @@ 
             }
 
             echo '<li class="text-center">';
-            echo $image_files_only[$slide] . ' ';
+            echo $image_files_only[$slide].' ';
             echo Display::toolbarButton(
                 get_lang('Modify'),
-                'edit_document.php?' . api_get_cidreq() . '&' . http_build_query([
+                'edit_document.php?'.api_get_cidreq().'&'.http_build_query([
                     'id' => $row['id'],
                     'origin' => 'slideshow',
                     'origin_opt' => $edit_slide_id,
@@ -493,11 +493,11 @@ 
                 false
             );
             echo '</li>';
-            echo '<li class="text-center">' . $width.' x '.$height . '</li>';
-			echo '<li class="text-center">' . round((filesize($image) / 1024), 2) . ' KB - ' . $ext . '</li>';
-            echo '<li class="text-center">' . $resize_info . '</li>';
-			echo '<li class="text-center">' . $resize_width . '</li>';
-			echo '<li class="text-center">' . $resize_height . '</li>';
+            echo '<li class="text-center">'.$width.' x '.$height.'</li>';
+			echo '<li class="text-center">'.round((filesize($image) / 1024), 2).' KB - '.$ext.'</li>';
+            echo '<li class="text-center">'.$resize_info.'</li>';
+			echo '<li class="text-center">'.$resize_width.'</li>';
+			echo '<li class="text-center">'.$resize_height.'</li>';
             echo '</ul>';
 		}
 

Indentation +245 added lines, -245 removed lines

@@ -15,15 +15,15 @@ 
 $slide_id = isset($_GET['slide_id']) ? Security::remove_XSS($_GET['slide_id']) : null;
 
 if (empty($slide_id)) {
-	$edit_slide_id = 1;
+    $edit_slide_id = 1;
 } else {
-	$edit_slide_id = $slide_id;
+    $edit_slide_id = $slide_id;
 }
 
 if ($path != '/') {
-	$folder = $path.'/';
+    $folder = $path.'/';
 } else {
-	$folder = '/';
+    $folder = '/';
 }
 $sys_course_path = api_get_path(SYS_COURSE_PATH);
 
@@ -41,15 +41,15 @@ 
 
 // Loading the slides from the session
 if (isset($_SESSION['image_files_only'])) {
-	$image_files_only = $_SESSION['image_files_only'];
+    $image_files_only = $_SESSION['image_files_only'];
 }
 
 // Calculating the current slide, next slide, previous slide and the number of slides
 $slide = null;
 if ($slide_id != 'all') {
-	$slide = $slide_id ? $slide_id : 0;
-	$previous_slide = $slide - 1;
-	$next_slide = $slide + 1;
+    $slide = $slide_id ? $slide_id : 0;
+    $previous_slide = $slide - 1;
+    $next_slide = $slide + 1;
 }
 $total_slides = count($image_files_only);
 ?>
@@ -62,62 +62,62 @@ 
 <?php
 
 if ($slide_id != 'all') {
-	$image = null;
-	if (isset($image_files_only[$slide])) {
-		$image = $sys_course_path . $_course['path'] . '/document' . $folder . $image_files_only[$slide];
-	}
-	if (file_exists($image)) {
-		echo '<div class="actions-pagination">';
-
-		// Back forward buttons
-		if ($slide == 0) {
-			$imgp = 'action_prev_na.png';
-			$first = Display::return_icon('action_first_na.png');
-		} else {
-			$imgp = 'action_prev.png';
-			$first = '<a href="slideshow.php?slide_id=0&curdirpath='.$pathurl.'">
+    $image = null;
+    if (isset($image_files_only[$slide])) {
+        $image = $sys_course_path . $_course['path'] . '/document' . $folder . $image_files_only[$slide];
+    }
+    if (file_exists($image)) {
+        echo '<div class="actions-pagination">';
+
+        // Back forward buttons
+        if ($slide == 0) {
+            $imgp = 'action_prev_na.png';
+            $first = Display::return_icon('action_first_na.png');
+        } else {
+            $imgp = 'action_prev.png';
+            $first = '<a href="slideshow.php?slide_id=0&curdirpath='.$pathurl.'">
 			          '.Display::return_icon('action_first.png', get_lang('FirstSlide')).'
 			          </a>';
-		}
+        }
 
-		// First slide
-		echo $first;
+        // First slide
+        echo $first;
 
-		// Previous slide
-		if ($slide > 0) {
-			echo '<a href="slideshow.php?slide_id='.$previous_slide.'&curdirpath='.$pathurl.'">';
-		}
+        // Previous slide
+        if ($slide > 0) {
+            echo '<a href="slideshow.php?slide_id='.$previous_slide.'&curdirpath='.$pathurl.'">';
+        }
 
         echo Display::return_icon($imgp, get_lang('Previous'));
-		if ($slide > 0) {
-			echo '</a>';
-		}
-
-		// Divider
-		echo ' [ '.$next_slide.'/'.$total_slides.' ] ';
-
-		// Next slide
-		if ($slide < $total_slides - 1) {
-			echo '<a href="slideshow.php?slide_id='.$next_slide.'&curdirpath='.$pathurl.'">';
-		}
-		if ($slide == $total_slides - 1) {
-			$imgn = 'action_next_na.png';
+        if ($slide > 0) {
+            echo '</a>';
+        }
+
+        // Divider
+        echo ' [ '.$next_slide.'/'.$total_slides.' ] ';
+
+        // Next slide
+        if ($slide < $total_slides - 1) {
+            echo '<a href="slideshow.php?slide_id='.$next_slide.'&curdirpath='.$pathurl.'">';
+        }
+        if ($slide == $total_slides - 1) {
+            $imgn = 'action_next_na.png';
             $last = Display::return_icon('action_last_na.png', get_lang('LastSlide'));
-		} else {
-			$imgn = 'action_next.png';
-			$last = '<a href="slideshow.php?slide_id='.($total_slides-1).'&curdirpath='.$pathurl.'">
+        } else {
+            $imgn = 'action_next.png';
+            $last = '<a href="slideshow.php?slide_id='.($total_slides-1).'&curdirpath='.$pathurl.'">
 			        '.Display::return_icon('action_last.png', get_lang('LastSlide')).'
                 </a>';
-		}
+        }
         echo Display::return_icon($imgn, get_lang('Next'));
-		if ($slide > 0) {
-			echo '</a>';
-		}
-
-		// Last slide
-		echo $last;
-		echo '</div>';
-	}
+        if ($slide > 0) {
+            echo '</a>';
+        }
+
+        // Last slide
+        echo $last;
+        echo '</div>';
+    }
 }
 
 // Exit the slideshow
@@ -126,10 +126,10 @@ 
 
 // Show thumbnails
 if ($slide_id != 'all') {
-	echo '<a href="slideshow.php?slide_id=all&curdirpath='.$pathurl.'&'.api_get_cidreq().'">'.
+    echo '<a href="slideshow.php?slide_id=all&curdirpath='.$pathurl.'&'.api_get_cidreq().'">'.
         Display::return_icon('thumbnails.png',get_lang('ShowThumbnails'),'',ICON_SIZE_MEDIUM).'</a>';
 } else {
-	echo Display::return_icon('thumbnails_na.png',get_lang('ShowThumbnails'),'',ICON_SIZE_MEDIUM);
+    echo Display::return_icon('thumbnails_na.png',get_lang('ShowThumbnails'),'',ICON_SIZE_MEDIUM);
 }
 // Slideshow options
 echo '<a href="slideshowoptions.php?curdirpath='.$pathurl.'&'.api_get_cidreq().'">'.
@@ -142,24 +142,24 @@ 
 
 // If we come from slideshowoptions.php we sessionize (new word !!! ;-) the options
 if (isset($_POST['Submit'])) {
-	// We come from slideshowoptions.php
-	//$_SESSION["auto_image_resizing"]=Security::remove_XSS($_POST['auto_radio_resizing']);
-	$_SESSION["image_resizing"] = Security::remove_XSS($_POST['radio_resizing']);
-	if ($_POST['radio_resizing'] == "resizing" && $_POST['width'] != '' && $_POST['height'] != '') {
-		//echo "resizing";
-		$_SESSION["image_resizing_width"] = Security::remove_XSS($_POST['width']);
-		$_SESSION["image_resizing_height"] = Security::remove_XSS($_POST['height']);
-	} else {
-		//echo "unsetting the session heighte and width";
-		$_SESSION["image_resizing_width"] = null;
-		$_SESSION["image_resizing_height"] = null;
-	}
+    // We come from slideshowoptions.php
+    //$_SESSION["auto_image_resizing"]=Security::remove_XSS($_POST['auto_radio_resizing']);
+    $_SESSION["image_resizing"] = Security::remove_XSS($_POST['radio_resizing']);
+    if ($_POST['radio_resizing'] == "resizing" && $_POST['width'] != '' && $_POST['height'] != '') {
+        //echo "resizing";
+        $_SESSION["image_resizing_width"] = Security::remove_XSS($_POST['width']);
+        $_SESSION["image_resizing_height"] = Security::remove_XSS($_POST['height']);
+    } else {
+        //echo "unsetting the session heighte and width";
+        $_SESSION["image_resizing_width"] = null;
+        $_SESSION["image_resizing_height"] = null;
+    }
 }
 $target_width = $target_height = null;
 // The target height and width depends if we choose resizing or no resizing
 if (isset($_SESSION["image_resizing"]) &&  $_SESSION["image_resizing"] == "resizing") {
-	$target_width = $_SESSION["image_resizing_width"];
-	$target_height = $_SESSION["image_resizing_height"];
+    $target_width = $_SESSION["image_resizing_width"];
+    $target_height = $_SESSION["image_resizing_height"];
 }
 
 /*	THUMBNAIL VIEW */
@@ -169,59 +169,59 @@ 
 $html = '';
 if ($slide_id == 'all') {
 
-	// Config for make thumbnails
+    // Config for make thumbnails
     $allowed_thumbnail_types = array('jpg', 'jpeg', 'gif', 'png');
-	$max_thumbnail_width     = 250;
-	$max_thumbnail_height    = 250;
-	$png_compression	     = 0;//0(none)-9
-	$jpg_quality  	         = 75;//from 0 to 100 (default is 75). More quality less compression
+    $max_thumbnail_width     = 250;
+    $max_thumbnail_height    = 250;
+    $png_compression	     = 0;//0(none)-9
+    $jpg_quality  	         = 75;//from 0 to 100 (default is 75). More quality less compression
 
-	$directory_thumbnails = $sys_course_path.$_course['path'].'/document'.$folder.'.thumbs/';
+    $directory_thumbnails = $sys_course_path.$_course['path'].'/document'.$folder.'.thumbs/';
 
-	//Other parameters only for show tumbnails
-	$row_items 			     = 4;//only in slideshow.php
-	$number_image 			 = 7;//num icons cols to show
-	$thumbnail_width_frame=$max_thumbnail_width;//optional $max_thumbnail_width+x
-	$thumbnail_height_frame=$max_thumbnail_height;
+    //Other parameters only for show tumbnails
+    $row_items 			     = 4;//only in slideshow.php
+    $number_image 			 = 7;//num icons cols to show
+    $thumbnail_width_frame=$max_thumbnail_width;//optional $max_thumbnail_width+x
+    $thumbnail_height_frame=$max_thumbnail_height;
 
-	// Create the template_thumbnails folder (if no exist)
+    // Create the template_thumbnails folder (if no exist)
 
-	if (!file_exists($directory_thumbnails)) {
-		@mkdir($directory_thumbnails, api_get_permissions_for_new_directories());
+    if (!file_exists($directory_thumbnails)) {
+        @mkdir($directory_thumbnails, api_get_permissions_for_new_directories());
     }
 
-	// check files and thumbnails
-	if (is_array($image_files_only)) {
+    // check files and thumbnails
+    if (is_array($image_files_only)) {
 
-		foreach ($image_files_only as $one_image_file) {
-			$image = $sys_course_path.$_course['path'].'/document'.$folder.$one_image_file;
-			$image_thumbnail= $directory_thumbnails.'.'.$one_image_file;
+        foreach ($image_files_only as $one_image_file) {
+            $image = $sys_course_path.$_course['path'].'/document'.$folder.$one_image_file;
+            $image_thumbnail= $directory_thumbnails.'.'.$one_image_file;
 
-			if (file_exists($image)) {
-				//check thumbnail
-				$imagetype = explode(".", $image);
+            if (file_exists($image)) {
+                //check thumbnail
+                $imagetype = explode(".", $image);
                 //or check $imagetype = image_type_to_extension(exif_imagetype($image), false);
-				$imagetype = strtolower($imagetype[count($imagetype)-1]);
+                $imagetype = strtolower($imagetype[count($imagetype)-1]);
 
-				if(in_array($imagetype,$allowed_thumbnail_types)) {
-					if (!file_exists($image_thumbnail)){
+                if(in_array($imagetype,$allowed_thumbnail_types)) {
+                    if (!file_exists($image_thumbnail)){
                         //run each once we view thumbnails is too heavy, then need move into  !file_exists($image_thumbnail, and only run when haven't the thumbnail
-						$original_image_size = api_getimagesize($image);
-
-						switch($imagetype) {
-							case 'gif':
-								$source_img = imagecreatefromgif($image);
-								break;
-							case 'jpg':
-								$source_img = imagecreatefromjpeg($image);
-								break;
-							case 'jpeg':
-								$source_img = imagecreatefromjpeg($image);
-								break;
-							case 'png':
-								$source_img = imagecreatefrompng($image);
-								break;
-						}
+                        $original_image_size = api_getimagesize($image);
+
+                        switch($imagetype) {
+                            case 'gif':
+                                $source_img = imagecreatefromgif($image);
+                                break;
+                            case 'jpg':
+                                $source_img = imagecreatefromjpeg($image);
+                                break;
+                            case 'jpeg':
+                                $source_img = imagecreatefromjpeg($image);
+                                break;
+                            case 'png':
+                                $source_img = imagecreatefrompng($image);
+                                break;
+                        }
 
                         $new_thumbnail_size = api_calculate_image_size(
                             $original_image_size['width'],
@@ -230,33 +230,33 @@ 
                             $max_thumbnail_height
                         );
 
-						if($max_thumbnail_width>$original_image_size['width'] && $max_thumbnail_height>$original_image_size['height']){
-							$new_thumbnail_size['width']=$original_image_size['width'];
-							$new_thumbnail_size['height']=$original_image_size['height'];
-						}
+                        if($max_thumbnail_width>$original_image_size['width'] && $max_thumbnail_height>$original_image_size['height']){
+                            $new_thumbnail_size['width']=$original_image_size['width'];
+                            $new_thumbnail_size['height']=$original_image_size['height'];
+                        }
 
-						$crop = imagecreatetruecolor($new_thumbnail_size['width'], $new_thumbnail_size['height']);
+                        $crop = imagecreatetruecolor($new_thumbnail_size['width'], $new_thumbnail_size['height']);
 
-						// preserve transparency
-						if($imagetype == "png"){
-							imagesavealpha($crop, true);
-							$color = imagecolorallocatealpha($crop,0x00,0x00,0x00,127);
-							imagefill($crop, 0, 0, $color);
-						}
+                        // preserve transparency
+                        if($imagetype == "png"){
+                            imagesavealpha($crop, true);
+                            $color = imagecolorallocatealpha($crop,0x00,0x00,0x00,127);
+                            imagefill($crop, 0, 0, $color);
+                        }
 
-						if ($imagetype == "gif") {
-							$transindex = imagecolortransparent($source_img);
+                        if ($imagetype == "gif") {
+                            $transindex = imagecolortransparent($source_img);
                             $palletsize = imagecolorstotal($source_img);
-							 //GIF89a for transparent and anim (first clip), either GIF87a
-							 if ($transindex >= 0 && $transindex < $palletsize){
-								 $transcol = imagecolorsforindex($source_img, $transindex);
-								 $transindex = imagecolorallocatealpha($crop, $transcol['red'], $transcol['green'], $transcol['blue'], 127);
-								 imagefill($crop, 0, 0, $transindex);
-								 imagecolortransparent($crop, $transindex);
-							 }
-						}
-
-						//resampled image
+                                //GIF89a for transparent and anim (first clip), either GIF87a
+                                if ($transindex >= 0 && $transindex < $palletsize){
+                                    $transcol = imagecolorsforindex($source_img, $transindex);
+                                    $transindex = imagecolorallocatealpha($crop, $transcol['red'], $transcol['green'], $transcol['blue'], 127);
+                                    imagefill($crop, 0, 0, $transindex);
+                                    imagecolortransparent($crop, $transindex);
+                                }
+                        }
+
+                        //resampled image
                         imagecopyresampled(
                             $crop,
                             $source_img,
@@ -270,69 +270,69 @@ 
                             $original_image_size['height']
                         );
 
-						switch ($imagetype) {
-							case 'gif':
-								imagegif($crop,$image_thumbnail);
-								break;
-							case 'jpg':
-								imagejpeg($crop,$image_thumbnail,$jpg_quality);
-								break;
-							case 'jpeg':
-								imagejpeg($crop,$image_thumbnail,$jpg_quality);
-								break;
-							case 'png':
-								imagepng($crop,$image_thumbnail,$png_compression);
-								break;
-						}
-
-						//clean memory
-						imagedestroy($crop);
-					}//end !exist thumbnail
-
-					//show thumbnail and link
-
-					$one_image_thumbnail_file='.thumbs/.'.$one_image_file;//get path thumbnail
-					$doc_url = ($path && $path !== '/') ? $path.'/'.$one_image_thumbnail_file : $path.$one_image_thumbnail_file;
-					$image_tag[] = '<img class="img-gallery" src="download.php?doc_url='.$doc_url.'" border="0" title="'.$one_image_file.'">';
-				} else {
-					//if images aren't support by gd (not gif, jpg, jpeg, png)
-					if ($imagetype=="bmp") {
+                        switch ($imagetype) {
+                            case 'gif':
+                                imagegif($crop,$image_thumbnail);
+                                break;
+                            case 'jpg':
+                                imagejpeg($crop,$image_thumbnail,$jpg_quality);
+                                break;
+                            case 'jpeg':
+                                imagejpeg($crop,$image_thumbnail,$jpg_quality);
+                                break;
+                            case 'png':
+                                imagepng($crop,$image_thumbnail,$png_compression);
+                                break;
+                        }
+
+                        //clean memory
+                        imagedestroy($crop);
+                    }//end !exist thumbnail
+
+                    //show thumbnail and link
+
+                    $one_image_thumbnail_file='.thumbs/.'.$one_image_file;//get path thumbnail
+                    $doc_url = ($path && $path !== '/') ? $path.'/'.$one_image_thumbnail_file : $path.$one_image_thumbnail_file;
+                    $image_tag[] = '<img class="img-gallery" src="download.php?doc_url='.$doc_url.'" border="0" title="'.$one_image_file.'">';
+                } else {
+                    //if images aren't support by gd (not gif, jpg, jpeg, png)
+                    if ($imagetype=="bmp") {
                         // use getimagesize instead api_getimagesize($image); becasuse api_getimagesize doesn't support bmp files. Put here for each show, only for a few bmp files isn't heavy
-						$original_image_size = getimagesize($image);
-						if ($max_thumbnail_width<$original_image_size[0] || $max_thumbnail_height<$original_image_size[1]){
-							$thumbnail_size=api_calculate_image_size($original_image_size[0], $original_image_size[1], $max_thumbnail_width, $max_thumbnail_height);//don't use resize_image because doesn't run with bmp files
-							$image_height = $thumbnail_size['height'];
-							$image_width  = $thumbnail_size['width'];
-						} else {
-							$image_height=$original_image_size[0];
-							$image_width=$original_image_size[1];
-						}
-					} else {
-						//example for svg files,...
-						$image_width=$max_thumbnail_width;
-						$image_height=$max_thumbnail_height;
-					}
-
-					$doc_url = ($path && $path !== '/') ? $path.'/'.$one_image_file : $path.$one_image_file;
-					$image_tag[] = '<img src="download.php?doc_url='.$doc_url.'" border="0" width="'.$image_width.'" height="'.$image_height.'" title="'.$one_image_file.'">';
-
-				}//end allowed image types
-			}//end if exist file image
-		}//end foreach
-	}//end image files only
-
-	// Creating the table
-	$html_table = '';
-
-	$i = 0;
-	$count_image = count($image_tag);
-	$number_iteration = ceil($count_image/$number_image);
-	$p = 0;
+                        $original_image_size = getimagesize($image);
+                        if ($max_thumbnail_width<$original_image_size[0] || $max_thumbnail_height<$original_image_size[1]){
+                            $thumbnail_size=api_calculate_image_size($original_image_size[0], $original_image_size[1], $max_thumbnail_width, $max_thumbnail_height);//don't use resize_image because doesn't run with bmp files
+                            $image_height = $thumbnail_size['height'];
+                            $image_width  = $thumbnail_size['width'];
+                        } else {
+                            $image_height=$original_image_size[0];
+                            $image_width=$original_image_size[1];
+                        }
+                    } else {
+                        //example for svg files,...
+                        $image_width=$max_thumbnail_width;
+                        $image_height=$max_thumbnail_height;
+                    }
+
+                    $doc_url = ($path && $path !== '/') ? $path.'/'.$one_image_file : $path.$one_image_file;
+                    $image_tag[] = '<img src="download.php?doc_url='.$doc_url.'" border="0" width="'.$image_width.'" height="'.$image_height.'" title="'.$one_image_file.'">';
+
+                }//end allowed image types
+            }//end if exist file image
+        }//end foreach
+    }//end image files only
+
+    // Creating the table
+    $html_table = '';
+
+    $i = 0;
+    $count_image = count($image_tag);
+    $number_iteration = ceil($count_image/$number_image);
+    $p = 0;
     $html = '';
     $html .= '<div class="gallery">';
-	for ($k = 0; $k < $number_iteration; $k++) {
-		for ($i = 0; $i < $number_image; $i++) {
-			if (isset($image_tag[$p])) {
+    for ($k = 0; $k < $number_iteration; $k++) {
+        for ($i = 0; $i < $number_image; $i++) {
+            if (isset($image_tag[$p])) {
                             $html .= '<div class="col-xs-6 col-sm-3 col-md-2">';
                             $html .= '<div class="canvas-one">';
                             $html .= '<a class="canvas-two" href="slideshow.php?slide_id='.$p.'&curdirpath='.$pathurl.'">';
@@ -344,10 +344,10 @@ 
                             $html .= '</a>';
                             $html .= '</div>';
                             $html .= '</div>';
-			}
-			$p++;
-		}
-	}
+            }
+            $p++;
+        }
+    }
     $html .= '</div>';
 
 }//end slide==all
@@ -358,43 +358,43 @@ 
 // This is for viewing all the images in the slideshow one at a time.
 
 if ($slide_id != 'all' && !empty($image_files_only)) {
-	if (file_exists($image) && is_file($image)) {
-		$image_height_width = resize_image($image, $target_width, $target_height);
-
-		$image_height = $image_height_width[0];
-		$image_width = $image_height_width[1];
-
-		$height_width_tags = null;
-		if (isset($_SESSION['image_resizing']) && $_SESSION['image_resizing'] == 'resizing') {
-			$height_width_tags = 'width="'.$image_width.'" height="'.$image_height.'"';
-		}
-
-		// This is done really quickly and should be cleaned up a little bit using the API functions
-		$tbl_documents = Database::get_course_table(TABLE_DOCUMENT);
-		if ($path == '/') {
-			$pathpart = '/';
-		} else {
-			$pathpart = $path.'/';
-		}
-		$sql = "SELECT * FROM $tbl_documents
+    if (file_exists($image) && is_file($image)) {
+        $image_height_width = resize_image($image, $target_width, $target_height);
+
+        $image_height = $image_height_width[0];
+        $image_width = $image_height_width[1];
+
+        $height_width_tags = null;
+        if (isset($_SESSION['image_resizing']) && $_SESSION['image_resizing'] == 'resizing') {
+            $height_width_tags = 'width="'.$image_width.'" height="'.$image_height.'"';
+        }
+
+        // This is done really quickly and should be cleaned up a little bit using the API functions
+        $tbl_documents = Database::get_course_table(TABLE_DOCUMENT);
+        if ($path == '/') {
+            $pathpart = '/';
+        } else {
+            $pathpart = $path.'/';
+        }
+        $sql = "SELECT * FROM $tbl_documents
 		        WHERE c_id = $course_id AND path='".Database::escape_string($pathpart.$image_files_only[$slide])."'";
-		$result = Database::query($sql);
-		$row = Database::fetch_array($result);
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result);
 
         echo '<div class="thumbnail">';
-		if ($slide < $total_slides - 1 && $slide_id != 'all') {
-			echo "<a href='slideshow.php?slide_id=".$next_slide."&curdirpath=$pathurl'>";
-		} else {
-			echo "<a href='slideshow.php?slide_id=0&curdirpath=$pathurl'>";
-		}
+        if ($slide < $total_slides - 1 && $slide_id != 'all') {
+            echo "<a href='slideshow.php?slide_id=".$next_slide."&curdirpath=$pathurl'>";
+        } else {
+            echo "<a href='slideshow.php?slide_id=0&curdirpath=$pathurl'>";
+        }
         if ($path == '/') {
-        	$path = '';
+            $path = '';
         }
 
-		list($width, $height) = getimagesize($image);
-		// Auto resize
-		if (isset($_SESSION["image_resizing"]) &&  $_SESSION["image_resizing"] == 'resizing') {
-		?>
+        list($width, $height) = getimagesize($image);
+        // Auto resize
+        if (isset($_SESSION["image_resizing"]) &&  $_SESSION["image_resizing"] == 'resizing') {
+        ?>
 
 		<script type="text/javascript">
 			var initial_width='<?php echo $width; ?>';
@@ -447,21 +447,21 @@ 
 
 		</script>
     <?php
-		} else {
-			echo "<img class=\"img-responsive\" src='download.php?doc_url=$path/".$image_files_only[$slide]."' alt='".$image_files_only[$slide]."' border='0'".$height_width_tags.">";
-		}
+        } else {
+            echo "<img class=\"img-responsive\" src='download.php?doc_url=$path/".$image_files_only[$slide]."' alt='".$image_files_only[$slide]."' border='0'".$height_width_tags.">";
+        }
 
-		echo '</a>';
+        echo '</a>';
         echo '<div class="caption text-center">';
         echo Display::tag('h3', $row['title']);
         echo '<p>' . $row['comment'] . '</p>';
         echo '</div>';
         echo '</div>';
 
-		if (api_is_allowed_to_edit(null, true)) {
+        if (api_is_allowed_to_edit(null, true)) {
             echo '<ul class="list-unstyled">';
-			$aux = explode('.', htmlspecialchars($image_files_only[$slide]));
-			$ext = $aux[count($aux) - 1];
+            $aux = explode('.', htmlspecialchars($image_files_only[$slide]));
+            $ext = $aux[count($aux) - 1];
 
             if (isset($_SESSION['image_resizing']) && $_SESSION['image_resizing'] == 'resizing') {
                 $resize_info = get_lang('Resizing').'<br />';
@@ -473,8 +473,8 @@ 
                 $resize_height = get_lang('Auto');
             } else {
                 $resize_info = get_lang('NoResizing').'<br />';
-				$resize_width = '';
-				$resize_height = '';
+                $resize_width = '';
+                $resize_height = '';
             }
 
             echo '<li class="text-center">';
@@ -494,16 +494,16 @@ 
             );
             echo '</li>';
             echo '<li class="text-center">' . $width.' x '.$height . '</li>';
-			echo '<li class="text-center">' . round((filesize($image) / 1024), 2) . ' KB - ' . $ext . '</li>';
+            echo '<li class="text-center">' . round((filesize($image) / 1024), 2) . ' KB - ' . $ext . '</li>';
             echo '<li class="text-center">' . $resize_info . '</li>';
-			echo '<li class="text-center">' . $resize_width . '</li>';
-			echo '<li class="text-center">' . $resize_height . '</li>';
+            echo '<li class="text-center">' . $resize_width . '</li>';
+            echo '<li class="text-center">' . $resize_height . '</li>';
             echo '</ul>';
-		}
+        }
 
-	} else {
-		Display::display_warning_message(get_lang('FileNotFound'));
-	}
+    } else {
+        Display::display_warning_message(get_lang('FileNotFound'));
+    }
 } else {
     if ($slide_id != 'all') {
         Display::display_warning_message(get_lang('NoDataAvailable'));