chamilo / chamilo-lms

main/inc/lib/document.lib.php

Doc Comments +21 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??
@@ -1527,7 +1527,7 @@ 
      * 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
@@ -1612,6 +1612,8 @@ 
      * @param   int
      * @param   int
      * @param bool
+     * @param integer $session_id
+     * @param integer $user_id
      * @return  bool
      */
     public static function is_visible_by_id(
@@ -2090,6 +2092,7 @@ 
      * @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
      */
@@ -2913,6 +2916,7 @@ 
 
     /**
      * Obtains the text inside the file with the right parser
+     * @param string $doc_path
      */
     public static function get_text_content($doc_path, $doc_mime)
     {
@@ -3163,6 +3167,7 @@ 
      * Shows a play icon next to the document title in the document list
      * @param int
      * @param string
+     * @param integer|null $i
      * @return string	html content
      */
     static function generate_media_preview($i, $type = 'simple')
@@ -3557,7 +3562,7 @@ 
      * @param bool $add_move_button
      * @param string $target
      * @param string $overwrite_url
-     * @return null|string
+     * @return string
      */
     private static function parseFile(
         $course_info,
@@ -4058,7 +4063,7 @@ 
     }
 
     /**
-     * @return array
+     * @return string[]
      */
     public static function get_web_odf_extension_list()
     {
@@ -4067,10 +4072,10 @@ 
 
     /**
      * 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'
@@ -4274,7 +4279,7 @@ 
     }
 
     /**
-     * @return array
+     * @return string[]
      */
     public static function get_system_folders()
     {
@@ -4292,7 +4297,7 @@ 
     }
 
     /**
-     * @return array
+     * @return string[]
      */
     public static function getProtectedFolderFromStudent()
     {
@@ -4448,7 +4453,7 @@ 
      * 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)
     {
@@ -5536,9 +5541,6 @@ 
     /**
      * 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
@@ -5867,7 +5869,7 @@ 
     /**
      * 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)
     {
@@ -5922,7 +5924,8 @@ 
 
     /**
      * 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)
     {
@@ -5938,7 +5941,7 @@ 
 
     /**
      * 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)
     {
@@ -6152,7 +6155,7 @@ 
      * @param int $id
      * @param array $courseInfo
      * @param int $sessionId
-     * @return bool
+     * @return boolean|null
      */
     public static function downloadDeletedDocument($id, $courseInfo, $sessionId)
     {
@@ -6171,7 +6174,7 @@ 
      * @param array $courseInfo
      * @param int $sessionId
      *
-     * @return bool
+     * @return false|null
      */
     public static function downloadAllDeletedDocument($courseInfo, $sessionId)
     {
@@ -6210,7 +6213,7 @@ 
      * @param array $courseInfo
      * @param int $sessionId
      *
-     * @return bool
+     * @return false|null
      */
     public function deleteDocumentsFromSession($courseInfo, $sessionId)
     {

Spacing +339 added lines, -339 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');
@@ -365,7 +365,7 @@ 
             $lpFixedEncoding = api_get_configuration_value('lp_fixed_encoding');
 
             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');
             // Commented to avoid double caching declaration when playing with IE and HTTPS
             //header('Cache-Control: no-cache, must-revalidate');
             //header('Pragma: no-cache');
@@ -376,7 +376,7 @@ 
                     } else {
                         $encoding = @api_detect_encoding_html(file_get_contents($full_file_name));
                         if (!empty($encoding)) {
-                            $content_type .= '; charset=' . $encoding;
+                            $content_type .= '; charset='.$encoding;
                         }
                     }
                     break;
@@ -386,7 +386,7 @@ 
                     } 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;
@@ -395,13 +395,13 @@ 
                     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) {
@@ -442,18 +442,18 @@ 
 
             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;
 
@@ -466,30 +466,30 @@ 
 
             $content_type = self::file_get_mime_type($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($full_string);
             //You have to ensure that the calling script then stops processing (exit();)
@@ -582,9 +582,9 @@ 
             if (!empty($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).'")';
             }
         }
 
@@ -610,8 +610,8 @@ 
                     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
@@ -652,7 +652,7 @@ 
                     $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);
@@ -762,7 +762,7 @@ 
         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'];
             }
         }
 
@@ -786,7 +786,7 @@ 
                        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']}
                        )
@@ -803,7 +803,7 @@ 
                         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']}
                         )
@@ -850,7 +850,7 @@ 
                     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
@@ -871,7 +871,7 @@ 
                     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
@@ -887,9 +887,9 @@ 
                         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
@@ -966,7 +966,7 @@ 
                                 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);
 
@@ -1308,7 +1308,7 @@ 
             $res = Database::query($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) $row2['search_did']);
             }
@@ -1317,7 +1317,7 @@ 
             Database::query($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);
         }
     }
@@ -1406,12 +1406,12 @@ 
             $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';
@@ -1430,7 +1430,7 @@ 
                 $real_dir = '';
 
                 for ($i = 1; $i < $array_len; $i++) {
-                    $real_dir .= '/' . $dir_array[$i];
+                    $real_dir .= '/'.$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);
@@ -1504,21 +1504,21 @@ 
         $user_id = intval($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);
     }
@@ -1578,9 +1578,9 @@ 
                 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,'/'), '" . Database::escape_string($doc_path.'/'). "')=1
+        			locate(concat(path,'/'), '".Database::escape_string($doc_path.'/')."')=1
                 ";
 
         $result = Database::query($sql);
@@ -1743,12 +1743,12 @@ 
         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);
     }
 
@@ -1770,12 +1770,12 @@ 
         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);
@@ -1816,7 +1816,7 @@ 
             $all_user_info = array();
             if (Database::num_rows($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);
                 }
@@ -1899,7 +1899,7 @@ 
             $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'];
 
         //replace content
         $info_to_replace_in_content_html = array(
@@ -1916,7 +1916,7 @@ 
             $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))',
         );
 
@@ -1940,7 +1940,7 @@ 
         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;
             }
         }
@@ -1968,17 +1968,17 @@ 
             $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($sql);
         }
     }
@@ -1994,10 +1994,10 @@ 
         if (!empty($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');
             $visibility_command = 'invisible';
@@ -2224,9 +2224,9 @@ 
                                             //$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);
@@ -2239,9 +2239,9 @@ 
                                             $files_list[] = array($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);
@@ -2275,9 +2275,9 @@ 
                                             $files_list[] = array($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);
@@ -2290,9 +2290,9 @@ 
                                             $files_list[] = array($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);
@@ -2326,9 +2326,9 @@ 
                                     $files_list[] = array($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);
@@ -2341,9 +2341,9 @@ 
                                     $files_list[] = array($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);
@@ -2401,24 +2401,24 @@ 
             // 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++) {
@@ -2496,14 +2496,14 @@ 
                 $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();
 
@@ -2512,7 +2512,7 @@ 
 
                 // 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
@@ -2524,7 +2524,7 @@ 
                 $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);
                     }
@@ -2605,7 +2605,7 @@ 
 
                                 //$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, $origin_course_code) === false) {
@@ -2640,14 +2640,14 @@ 
     function replace_urls_inside_content_html_when_moving_file($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));
@@ -2661,8 +2661,8 @@ 
             $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');
@@ -2684,11 +2684,11 @@ 
         }
 
         if ($pre_original != '') {
-            $pre_original = '..' . $pre_original . '/';
+            $pre_original = '..'.$pre_original.'/';
         }
 
         if ($pre_destin != '') {
-            $pre_destin = '..' . $pre_destin . '/';
+            $pre_destin = '..'.$pre_destin.'/';
         }
 
         $levels = explode('/', $pre_original);
@@ -2706,7 +2706,7 @@ 
         //echo '$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);
@@ -2714,9 +2714,9 @@ 
         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'];
@@ -2743,11 +2743,11 @@ 
                         $real_orig_url_temp = '';
                         if ($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';
@@ -2773,7 +2773,7 @@ 
     {
         $course_data = api_get_course_info($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);
     }
@@ -2804,9 +2804,9 @@ 
     ) {
         $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], $show_output);
@@ -2878,7 +2878,7 @@ 
                     // Showing message when sending zip files
                     if ($new_path === true && $unzip == 1 && $show_output) {
                         Display::display_confirmation_message(
-                            get_lang('UplUploadSucceeded') . '<br />',
+                            get_lang('UplUploadSucceeded').'<br />',
                             false
                         );
                     }
@@ -2980,7 +2980,7 @@ 
         }
         if (isset($output)) {
             foreach ($output as & $line) {
-                $content .= $line . "\n";
+                $content .= $line."\n";
             }
             return $content;
         } else {
@@ -3012,13 +3012,13 @@ 
         $group_condition = null;
         if (isset($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)
@@ -3028,7 +3028,7 @@ 
                 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
@@ -3051,8 +3051,8 @@ 
         $course_quota_m = round($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);
 
@@ -3060,33 +3060,33 @@ 
 
         // 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;
     }
 
@@ -3102,7 +3102,7 @@ 
         $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'));
     }
 
@@ -3133,13 +3133,13 @@ 
      */
     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.
@@ -3147,12 +3147,12 @@ 
                 },
                 //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;
@@ -3182,16 +3182,16 @@ 
         }
 
         //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>';
@@ -3244,8 +3244,8 @@ 
                     </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>';
@@ -3326,7 +3326,7 @@ 
 
         $add_folder_filter = null;
         if (!empty($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
@@ -3361,7 +3361,7 @@ 
 
                 $notLikeCondition = null;
                 for ($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)."' ";
                 }
 
@@ -3386,7 +3386,7 @@ 
                 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
@@ -3416,7 +3416,7 @@ 
                 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')
             );
@@ -3516,12 +3516,12 @@ 
 
                 if (image.hasClass('open')) {
                     image.removeClass('open');
-                    image.attr('src', '" . $img_path . "nolines_plus.gif');
+                    image.attr('src', '" . $img_path."nolines_plus.gif');
                     $('#'+id).show();
                     $('#'+tempId).hide();
                 } else {
                     image.addClass('open');
-                    image.attr('src', '" . $img_path . "nolines_minus.gif');
+                    image.attr('src', '" . $img_path."nolines_minus.gif');
                     $('#'+id).hide();
                     $('#'+tempId).show();
 
@@ -3569,7 +3569,7 @@ 
         $overwrite_url
     ) {
         $img_path = api_get_path(WEB_IMG_PATH);
-        $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'];
@@ -3584,7 +3584,7 @@ 
         // 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'];
 
@@ -3596,25 +3596,25 @@ 
         // Show the "image name" not the filename of the image.
         if ($lp_id) {
             //LP URL
-            $url = api_get_path(WEB_CODE_PATH).'newscorm/lp_controller.php?'.api_get_cidreq().'&amp;action=add_item&amp;type=' . TOOL_DOCUMENT . '&amp;file=' . $documentId . '&amp;lp_id=' . $lp_id;
+            $url = api_get_path(WEB_CODE_PATH).'newscorm/lp_controller.php?'.api_get_cidreq().'&amp;action=add_item&amp;type='.TOOL_DOCUMENT.'&amp;file='.$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 = $img_path . $icon;
-        if (!file_exists($img_sys_path . $icon)) {
-            $img = $img_path . 'icons/16/default_small.gif';
+        $img = $img_path.$icon;
+        if (!file_exists($img_sys_path.$icon)) {
+            $img = $img_path.'icons/16/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)
         );
 
@@ -3625,12 +3625,12 @@ 
         $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  * 18) . 'px;margin-right:5px;">';
+        $return .= '<div class="item_data" style="margin-left:'.($num * 18).'px;margin-right:5px;">';
 
         if ($add_move_button) {
             $return .= '<a class="moved" href="#">';
@@ -3697,7 +3697,7 @@ 
             if (isset($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;
 
@@ -3705,23 +3705,23 @@ 
             $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 = $img_path.'nolines_plus.gif';
         if (empty($path)) {
             $image = $img_path.'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 .= '<img alt="" src="' . $img_path . 'lp_folder.gif" title="" align="absmiddle" />&nbsp;';
+        $return .= '<img alt="" src="'.$img_path.'lp_folder.gif" title="" align="absmiddle" />&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;" >';
             }
         }
 
@@ -3883,9 +3883,9 @@ 
             $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);
@@ -3894,7 +3894,7 @@ 
         $result = Database::query($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);
@@ -3925,8 +3925,8 @@ 
                 $file_content = self::get_text_content($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);
@@ -3943,7 +3943,7 @@ 
                 $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
@@ -3980,7 +3980,7 @@ 
                             } 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);
@@ -3994,7 +3994,7 @@ 
                             }
                         }
                         // 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);
@@ -4020,7 +4020,7 @@ 
                         } 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) {
@@ -4032,7 +4032,7 @@ 
                         }
                     }
                     // 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);
@@ -4316,7 +4316,7 @@ 
         $defaultVisibility = 'visible';
 
         if (isset($settings['documents'])) {
-            $portalDefaultVisibility =  'invisible';
+            $portalDefaultVisibility = 'invisible';
             if ($settings['documents'] == 'true') {
                 $portalDefaultVisibility = 'visible';
             }
@@ -4554,7 +4554,7 @@ 
         //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);
@@ -4563,9 +4563,9 @@ 
         }
 
         //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
@@ -4669,7 +4669,7 @@ 
         $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';
@@ -4721,7 +4721,7 @@ 
             $fileSize,
             $title,
             $comment,
-            0,//$readonly = 0,
+            0, //$readonly = 0,
             true, //$save_visibility = true,
             null, //$group_id = null,
             $sessionId
@@ -5006,8 +5006,8 @@ 
             $sessionId,
             $groupId
         )) {
-            $uniqueName = self::addSuffixToFileName($name, '_' . $counter);
-            $filePath = $path . $uniqueName;
+            $uniqueName = self::addSuffixToFileName($name, '_'.$counter);
+            $filePath = $path.$uniqueName;
             $counter++;
         }
 
@@ -5040,7 +5040,7 @@ 
             $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)) {
@@ -5048,7 +5048,7 @@ 
             }
         }
 
-        $form = new FormValidator('selector', 'GET', api_get_self() . '?' . api_get_cidreq());
+        $form = new FormValidator('selector', 'GET', api_get_self().'?'.api_get_cidreq());
         $form->addElement('hidden', 'cidReq', api_get_course_id());
         $parent_select = $form->addSelect('id', get_lang('CurrentDirectory'), '', array('onchange' => 'javascript: document.selector.submit();'));
 
@@ -5068,9 +5068,9 @@ 
                     $folder_titles[$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 != '') {
@@ -5088,7 +5088,7 @@ 
                     } 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 != '') {
@@ -5120,7 +5120,7 @@ 
     ) {
         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
@@ -5144,11 +5144,11 @@ 
 
         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';
@@ -5164,20 +5164,20 @@ 
 
             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;
             }
 
             /*$path = str_replace('%2F', '/', $url_path); //yox view hack otherwise the image can't be well read
             $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
@@ -5187,10 +5187,10 @@ 
         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') {
@@ -5223,24 +5223,24 @@ 
                 ) {
                     //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
@@ -5248,12 +5248,12 @@ 
                 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 = '';
@@ -5272,13 +5272,13 @@ 
                 $filetype == 'file' &&
                 in_array($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 ($filetype == 'file') {
@@ -5287,9 +5287,9 @@ 
                     (preg_match('/wav$/i', urldecode($checkExtension)) && !preg_match('/_chnano_.wav$/i', urldecode($url))) ||
                     preg_match('/ogg$/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
@@ -5307,7 +5307,7 @@ 
                     )
                 ) {
                     // 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";
@@ -5322,34 +5322,34 @@ 
                             '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
@@ -5374,19 +5374,19 @@ 
                             api_get_setting('enable_nanogong') == 'true'
                         )
                     ) {
-                        $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') {
@@ -5414,16 +5414,16 @@ 
                             api_get_setting('enable_nanogong') == 'true'
                         )
                     ) {
-                        $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>';
                 }
             }
         }
@@ -5447,7 +5447,7 @@ 
 
             if (preg_match('/_chnano_.wav$/i', $basename)) {
                 $icon = "jplayer_play.png";
-                $basename = 'wav' . ' ' . '(Nanogong)';
+                $basename = 'wav'.' '.'(Nanogong)';
             } else {
                 $basename = substr(strrchr($basename, '.'), 1);
             }
@@ -5463,13 +5463,13 @@ 
                 $userinfo = api_get_user_info(substr($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 {
@@ -5563,16 +5563,16 @@ 
         // 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';
@@ -5585,89 +5585,89 @@ 
         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') {
@@ -5675,14 +5675,14 @@ 
                     } 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']));
 
@@ -5690,23 +5690,23 @@ 
                     $_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>';
                         }
                     }
                 }
@@ -5718,15 +5718,15 @@ 
                 // 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 = '.$formatType.'>'.
                         Display::return_icon(
                             'convert.png',
                             get_lang('Convert'),
                             array(),
                             ICON_SIZE_SMALL
-                        ) . '</a>';
+                        ).'</a>';
                 }
             }
         }
@@ -5734,8 +5734,8 @@ 
         if ($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';
@@ -5749,20 +5749,20 @@ 
                         $certificate = get_lang('NoDefaultCertificate');
                     }
                     if (isset($_GET['selectcat'])) {
-                        $modify_icons .= '&nbsp;<a href="' . api_get_self() . '?' . api_get_cidreq() . '&amp;curdirpath=' . $curdirpath . '&amp;selectcat=' . Security::remove_XSS($_GET['selectcat']) . '&amp;set_certificate=' . $id . '&amp;' . $sort_params . '">
-                    <img src="../img/' . $visibility_icon_certificate . '.png" border="0" title="' . $certificate . '" alt="" /></a>';
+                        $modify_icons .= '&nbsp;<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;curdirpath='.$curdirpath.'&amp;selectcat='.Security::remove_XSS($_GET['selectcat']).'&amp;set_certificate='.$id.'&amp;'.$sort_params.'">
+                    <img src="../img/' . $visibility_icon_certificate.'.png" border="0" title="'.$certificate.'" alt="" /></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 $modify_icons;
     }
@@ -5831,7 +5831,7 @@ 
                     // 3. inside a subfolder of the folder you want to move
                     if (($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 = $folder;
                         // If document title is used, we have to display titles instead of real paths...
@@ -5848,7 +5848,7 @@ 
             foreach ($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);
@@ -5890,10 +5890,10 @@ 
                 // 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;
             }
@@ -5929,7 +5929,7 @@ 
         $clean_curdirpath = Security::remove_XSS($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;
@@ -5945,7 +5945,7 @@ 
         $clean_path = Security::remove_XSS($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_'.$current_session_id.'/sf_user_')) {
             return true;
         } else {
             return false;
@@ -5958,11 +5958,11 @@ 
      */
     public static function is_my_shared_folder($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;
@@ -6234,7 +6234,7 @@ 
                 ON (i.c_id = d.c_id)
                 WHERE
                     d.id = i.ref AND
-                    i.tool = '" . TOOL_DOCUMENT . "'
+                    i.tool = '".TOOL_DOCUMENT."'
                     $conditionSession AND
                     i.c_id = {$courseInfo['real_id']} AND
                     d.c_id = {$courseInfo['real_id']} ";
@@ -6242,9 +6242,9 @@ 
         $result = Database::query($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'];

main/work/upload.php

Unused Use Statements -2 removed lines

@@ -1,8 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use ChamiloSession as Session;
-
 /**
  * Class ExerciseLib
  * shows a question and its answers

Spacing +2 added lines, -2 removed lines

@@ -4,7 +4,7 @@ 
 use ChamiloSession as Session;
 
 require_once '../inc/global.inc.php';
-$current_course_tool  = TOOL_STUDENTPUBLICATION;
+$current_course_tool = TOOL_STUDENTPUBLICATION;
 
 api_protect_course_script(true);
 
@@ -233,7 +233,7 @@ 
 );
 
 $multiple_form = '<div class="description-upload">'.get_lang('ClickToSelectOrDragAndDropMultipleFilesOnTheUploadField').'</div>';
-$multiple_form .=  '
+$multiple_form .= '
 <span class="btn btn-success fileinput-button">
     <i class="glyphicon glyphicon-plus"></i>
     <span>'.get_lang('AddFiles').'</span>

main/work/work.lib.php

Spacing +84 added lines, -84 removed lines

@@ -35,27 +35,27 @@ 
 
     if (!empty($id)) {
         $display_output .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&origin='.$origin.'&gradebook='.$gradebook.'&id='.$my_back_id.'">'.
-            Display::return_icon('back.png', get_lang('BackToWorksList'),'',ICON_SIZE_MEDIUM).'</a>';
+            Display::return_icon('back.png', get_lang('BackToWorksList'), '', ICON_SIZE_MEDIUM).'</a>';
     }
 
     if (api_is_allowed_to_edit(null, true) && $origin != 'learnpath') {
         // Create dir
         if (empty($id)) {
             $display_output .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&action=create_dir&origin='.$origin.'&gradebook='.$gradebook.'">';
-            $display_output .= Display::return_icon('new_work.png', get_lang('CreateAssignment'),'',ICON_SIZE_MEDIUM).'</a>';
+            $display_output .= Display::return_icon('new_work.png', get_lang('CreateAssignment'), '', ICON_SIZE_MEDIUM).'</a>';
         }
         if (empty($id)) {
             // Options
             $display_output .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&action=settings&origin='.$origin.'&gradebook='.$gradebook.'">';
-            $display_output .= Display::return_icon('settings.png', get_lang('EditToolOptions'),'',ICON_SIZE_MEDIUM).'</a>';
+            $display_output .= Display::return_icon('settings.png', get_lang('EditToolOptions'), '', ICON_SIZE_MEDIUM).'</a>';
         }
-        $display_output .= '<a id="open-view-list" href="#">' . Display::return_icon('listwork.png', get_lang('ViewStudents'),'',ICON_SIZE_MEDIUM) . '</a>';
+        $display_output .= '<a id="open-view-list" href="#">'.Display::return_icon('listwork.png', get_lang('ViewStudents'), '', ICON_SIZE_MEDIUM).'</a>';
 
     }
 
     if (api_is_allowed_to_edit(null, true) && $origin != 'learnpath' && api_is_allowed_to_session_edit(false, true)) {
         // Delete all files
-        if (api_get_setting('permanently_remove_deleted_files') == 'true'){
+        if (api_get_setting('permanently_remove_deleted_files') == 'true') {
             $message = get_lang('ConfirmYourChoiceDeleteAllfiles');
         } else {
             $message = get_lang('ConfirmYourChoice');
@@ -112,7 +112,7 @@ 
  */
 function two_digits($number)
 {
-    $number = (int)$number;
+    $number = (int) $number;
     return ($number < 10) ? '0'.$number : $number;
 }
 
@@ -547,11 +547,11 @@ 
     );
 
     $columnModel = array(
-        array('name'=>'type', 'index'=>'type', 'width'=>'30',   'align'=>'center', 'sortable' => 'false'),
-        array('name'=>'title', 'index'=>'title', 'width'=>'250',   'align'=>'left'),
-        array('name'=>'expires_on', 'index'=>'expires_on', 'width'=>'80',  'align'=>'center', 'sortable'=>'false'),
-        array('name'=>'feedback', 'index'=>'feedback', 'width'=>'80',  'align'=>'center'),
-        array('name'=>'last_upload', 'index'=>'feedback', 'width'=>'125',  'align'=>'center'),
+        array('name'=>'type', 'index'=>'type', 'width'=>'30', 'align'=>'center', 'sortable' => 'false'),
+        array('name'=>'title', 'index'=>'title', 'width'=>'250', 'align'=>'left'),
+        array('name'=>'expires_on', 'index'=>'expires_on', 'width'=>'80', 'align'=>'center', 'sortable'=>'false'),
+        array('name'=>'feedback', 'index'=>'feedback', 'width'=>'80', 'align'=>'center'),
+        array('name'=>'last_upload', 'index'=>'feedback', 'width'=>'125', 'align'=>'center'),
     );
 
     if ($courseInfo['show_score'] == 0) {
@@ -588,10 +588,10 @@ 
 {
     $columnModel = array(
         array('name'=>'type', 'index'=>'type', 'width'=>'35', 'align'=>'center', 'sortable' => 'false'),
-        array('name'=>'title', 'index'=>'title',  'width'=>'300',   'align'=>'left', 'wrap_cell' => "true"),
-        array('name'=>'sent_date', 'index'=>'sent_date', 'width'=>'125',  'align'=>'center'),
-        array('name'=>'expires_on', 'index'=>'expires_on', 'width'=>'125',  'align'=>'center'),
-        array('name'=>'amount', 'index'=>'end_on', 'width'=>'110',  'align'=>'center'),
+        array('name'=>'title', 'index'=>'title', 'width'=>'300', 'align'=>'left', 'wrap_cell' => "true"),
+        array('name'=>'sent_date', 'index'=>'sent_date', 'width'=>'125', 'align'=>'center'),
+        array('name'=>'expires_on', 'index'=>'expires_on', 'width'=>'125', 'align'=>'center'),
+        array('name'=>'amount', 'index'=>'end_on', 'width'=>'110', 'align'=>'center'),
         array('name'=>'actions', 'index'=>'actions', 'width'=>'110', 'align'=>'left', 'sortable'=>'false')
     );
 
@@ -793,7 +793,7 @@ 
         return false;
     }
 
-    $base_work_dir = api_get_path(SYS_COURSE_PATH) .$_course['path'].'/work';
+    $base_work_dir = api_get_path(SYS_COURSE_PATH).$_course['path'].'/work';
     $work_data_url = $base_work_dir.$work_data['url'];
     $check = Security::check_abs_path($work_data_url.'/', $base_work_dir.'/');
 
@@ -863,7 +863,7 @@ 
 function get_work_path($id)
 {
     $table = Database::get_course_table(TABLE_STUDENT_PUBLICATION);
-    $course_id  = api_get_course_int_id();
+    $course_id = api_get_course_int_id();
     $sql = 'SELECT url FROM '.$table.'
             WHERE c_id = '.$course_id.' AND id='.intval($id);
     $res = Database::query($sql);
@@ -984,9 +984,9 @@ 
     if ($handle = @opendir($directory)) {
         while (false !== ($file = readdir($handle))) {
             if ($file != '.' && $file != '..') {
-                if (is_dir($directory. '/' . $file)) {
-                    $array_items = array_merge($array_items, directory_to_array($directory. '/' . $file));
-                    $file = $directory . '/' . $file;
+                if (is_dir($directory.'/'.$file)) {
+                    $array_items = array_merge($array_items, directory_to_array($directory.'/'.$file));
+                    $file = $directory.'/'.$file;
                     $array_items[] = preg_replace("/\/\//si", '/', $file);
                 }
             }
@@ -1018,7 +1018,7 @@ 
 
     $work_table = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);
 
-    for($i = 0; $i < count($only_dir); $i++) {
+    for ($i = 0; $i < count($only_dir); $i++) {
         $url = $only_dir[$i];
 
         $params = [
@@ -1058,7 +1058,7 @@ 
             if (is_dir($path_dir.'/'.$entry)) {
                 $count_dir++;
                 if ($recurse) {
-                    $count += count_dir($path_dir . '/' . $entry, $recurse);
+                    $count += count_dir($path_dir.'/'.$entry, $recurse);
                 }
             } else {
                 $count++;
@@ -1323,11 +1323,11 @@ 
         $courseInfo
     );
 
-    if (!in_array($direction, array('asc','desc'))) {
+    if (!in_array($direction, array('asc', 'desc'))) {
         $direction = 'desc';
     }
     if (!empty($where_condition)) {
-        $where_condition = ' AND ' . $where_condition;
+        $where_condition = ' AND '.$where_condition;
     }
 
     $column = !empty($column) ? Database::escape_string($column) : 'sent_date';
@@ -1470,7 +1470,7 @@ 
         $direction = 'desc';
     }
     if (!empty($where_condition)) {
-        $where_condition = ' AND ' . $where_condition;
+        $where_condition = ' AND '.$where_condition;
     }
 
     $column = !empty($column) ? Database::escape_string($column) : 'sent_date';
@@ -1527,7 +1527,7 @@ 
             );
 
             $work['amount'] = Display::label(
-                $countUniqueAttempts . '/' .
+                $countUniqueAttempts.'/'.
                 $totalUsers,
                 'success'
             );
@@ -1576,7 +1576,7 @@ 
                         array(),
                         ICON_SIZE_SMALL
                     ),
-                    api_get_path(WEB_CODE_PATH) . 'work/downloadfolder.inc.php?id=' . $workId . '&' . api_get_cidreq()
+                    api_get_path(WEB_CODE_PATH).'work/downloadfolder.inc.php?id='.$workId.'&'.api_get_cidreq()
                 );
             } else {
                 $downloadLink = Display::url(
@@ -1660,7 +1660,7 @@ 
     $userCondition = " AND u.user_id = $studentId ";
     $sessionCondition = " AND w.session_id = $sessionId ";
     $workCondition = " AND w_rel.work_id = $workId";
-    $workParentCondition  = " AND w.parent_id = $workId";
+    $workParentCondition = " AND w.parent_id = $workId";
 
     $sql = "(
                 $select1 FROM $userTable u
@@ -1768,7 +1768,7 @@ 
         }
 
         if ($allowEdition && !empty($itemId)) {
-            $deleteLink  = Display::url($deleteIcon, $urlDelete.'&item_id='.$itemId.'&id='.$workId);
+            $deleteLink = Display::url($deleteIcon, $urlDelete.'&item_id='.$itemId.'&id='.$workId);
         } else {
             $deleteLink = null;
         }
@@ -1849,7 +1849,7 @@ 
     $start = intval($start);
     $limit = intval($limit);
 
-    if (!in_array($direction, array('asc','desc'))) {
+    if (!in_array($direction, array('asc', 'desc'))) {
         $direction = 'desc';
     }
 
@@ -1917,13 +1917,13 @@ 
         $work_assignment = get_work_assignment_by_id($work_id);
 
         if (!empty($studentId)) {
-            $where_condition.= " AND u.user_id = ".intval($studentId);
+            $where_condition .= " AND u.user_id = ".intval($studentId);
         }
 
         $sql = " $select
                 FROM $work_condition  $user_condition
                 WHERE $extra_conditions $where_condition $condition_session
-                    AND u.status != " . INVITEE . "
+                    AND u.status != ".INVITEE."
                 ORDER BY $column $direction";
 
         if (!empty($start) && !empty($limit)) {
@@ -1980,7 +1980,7 @@ 
                     $qualification_string = Display::label('-');
                 } else {
                     $label = 'info';
-                    $relativeScore = $work['qualification']/$work_data['qualification'];
+                    $relativeScore = $work['qualification'] / $work_data['qualification'];
                     if ($relativeScore < 0.5) {
                         $label = 'important';
                     } elseif ($relativeScore < 0.75) {
@@ -2036,10 +2036,10 @@ 
                 // If URL is present then there's a file to download keep BC.
                 if ($work['contains_file'] || !empty($work['url'])) {
                     $link_to_download = '<a href="'.$url.'download.php?id='.$item_id.'&'.api_get_cidreq().'">'.
-                        Display::return_icon('save.png', get_lang('Save'),array(), ICON_SIZE_SMALL).'</a> ';
+                        Display::return_icon('save.png', get_lang('Save'), array(), ICON_SIZE_SMALL).'</a> ';
                 }
 
-                $send_to = Portfolio::share('work', $work['id'],  array('style' => 'white-space:nowrap;'));
+                $send_to = Portfolio::share('work', $work['id'], array('style' => 'white-space:nowrap;'));
 
                 $feedback = null;
                 $count = getWorkCommentCount($item_id, $course_info);
@@ -2058,7 +2058,7 @@ 
                 $work_date = api_convert_and_format_date($work['sent_date']);
 
                 $work['sent_date_from_db'] = $work['sent_date'];
-                $work['sent_date'] = '<div class="date-time">' . date_to_str_ago(api_get_local_time($work['sent_date'])) . ' ' . $add_string . ' ' . $work_date . '</div>';
+                $work['sent_date'] = '<div class="date-time">'.date_to_str_ago(api_get_local_time($work['sent_date'])).' '.$add_string.' '.$work_date.'</div>';
 
                 // Actions.
                 $correction = '';
@@ -2076,8 +2076,8 @@ 
                         Display::return_icon('default.png', get_lang('View'), array(), ICON_SIZE_SMALL).'</a> ';
 
                     if ($unoconv && empty($work['contains_file'])) {
-                        $action .=  '<a href="'.$url.'work_list_all.php?'.api_get_cidreq().'&id='.$work_id.'&action=export_to_doc&item_id='.$item_id.'" title="'.get_lang('ExportToDoc').'" >'.
-                            Display::return_icon('export_doc.png', get_lang('ExportToDoc'),array(), ICON_SIZE_SMALL).'</a> ';
+                        $action .= '<a href="'.$url.'work_list_all.php?'.api_get_cidreq().'&id='.$work_id.'&action=export_to_doc&item_id='.$item_id.'" title="'.get_lang('ExportToDoc').'" >'.
+                            Display::return_icon('export_doc.png', get_lang('ExportToDoc'), array(), ICON_SIZE_SMALL).'</a> ';
                     }
 
                     $correction = '
@@ -2120,9 +2120,9 @@ 
 
                     if ($locked) {
                         if ($qualification_exists) {
-                            $action .= Display::return_icon('rate_work_na.png', get_lang('CorrectAndRate'),array(), ICON_SIZE_SMALL);
+                            $action .= Display::return_icon('rate_work_na.png', get_lang('CorrectAndRate'), array(), ICON_SIZE_SMALL);
                         } else {
-                            $action .= Display::return_icon('edit_na.png', get_lang('Comment'),array(), ICON_SIZE_SMALL);
+                            $action .= Display::return_icon('edit_na.png', get_lang('Comment'), array(), ICON_SIZE_SMALL);
                         }
                     } else {
                         if ($qualification_exists) {
@@ -2136,45 +2136,45 @@ 
 
                     if ($work['contains_file']) {
                         if ($locked) {
-                            $action .= Display::return_icon('move_na.png', get_lang('Move'),array(), ICON_SIZE_SMALL);
+                            $action .= Display::return_icon('move_na.png', get_lang('Move'), array(), ICON_SIZE_SMALL);
                         } else {
                             $action .= '<a href="'.$url.'work.php?'.api_get_cidreq().'&action=move&item_id='.$item_id.'&id='.$work['parent_id'].'" title="'.get_lang('Move').'">'.
-                                Display::return_icon('move.png', get_lang('Move'),array(), ICON_SIZE_SMALL).'</a>';
+                                Display::return_icon('move.png', get_lang('Move'), array(), ICON_SIZE_SMALL).'</a>';
                         }
                     }
 
                     if ($work['accepted'] == '1') {
                         $action .= '<a href="'.$url.'work_list_all.php?'.api_get_cidreq().'&id='.$work_id.'&action=make_invisible&item_id='.$item_id.'" title="'.get_lang('Invisible').'" >'.
-                            Display::return_icon('visible.png', get_lang('Invisible'),array(), ICON_SIZE_SMALL).'</a>';
+                            Display::return_icon('visible.png', get_lang('Invisible'), array(), ICON_SIZE_SMALL).'</a>';
                     } else {
                         $action .= '<a href="'.$url.'work_list_all.php?'.api_get_cidreq().'&id='.$work_id.'&action=make_visible&item_id='.$item_id.'" title="'.get_lang('Visible').'" >'.
-                            Display::return_icon('invisible.png', get_lang('Visible'),array(), ICON_SIZE_SMALL).'</a> ';
+                            Display::return_icon('invisible.png', get_lang('Visible'), array(), ICON_SIZE_SMALL).'</a> ';
                     }
 
                     if ($locked) {
                         $action .= Display::return_icon('delete_na.png', get_lang('Delete'), '', ICON_SIZE_SMALL);
                     } else {
-                        $action .= '<a href="'.$url.'work_list_all.php?'.api_get_cidreq().'&id='.$work_id.'&action=delete&item_id='.$item_id.'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES))."'".')) return false;" title="'.get_lang('Delete').'" >'.
-                            Display::return_icon('delete.png', get_lang('Delete'),'',ICON_SIZE_SMALL).'</a>';
+                        $action .= '<a href="'.$url.'work_list_all.php?'.api_get_cidreq().'&id='.$work_id.'&action=delete&item_id='.$item_id.'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES))."'".')) return false;" title="'.get_lang('Delete').'" >'.
+                            Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL).'</a>';
                     }
                 } elseif ($is_author && (empty($work['qualificator_id']) || $work['qualificator_id'] == 0)) {
                     $action .= '<a href="'.$url.'view.php?'.api_get_cidreq().'&id='.$item_id.'" title="'.get_lang('View').'">'.
-                        Display::return_icon('default.png', get_lang('View'),array(), ICON_SIZE_SMALL).'</a>';
+                        Display::return_icon('default.png', get_lang('View'), array(), ICON_SIZE_SMALL).'</a>';
 
                     if (api_get_course_setting('student_delete_own_publication') == 1) {
                         if (api_is_allowed_to_session_edit(false, true)) {
                             $action .= '<a href="'.$url.'edit.php?'.api_get_cidreq().'&item_id='.$item_id.'&id='.$work['parent_id'].'" title="'.get_lang('Modify').'">'.
-                                Display::return_icon('edit.png', get_lang('Comment'),array(), ICON_SIZE_SMALL).'</a>';
+                                Display::return_icon('edit.png', get_lang('Comment'), array(), ICON_SIZE_SMALL).'</a>';
                         }
-                        $action .= ' <a href="'.$url.'work_list.php?'.api_get_cidreq().'&action=delete&item_id='.$item_id.'&id='.$work['parent_id'].'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES))."'".')) return false;" title="'.get_lang('Delete').'"  >'.
-                            Display::return_icon('delete.png',get_lang('Delete'),'',ICON_SIZE_SMALL).'</a>';
+                        $action .= ' <a href="'.$url.'work_list.php?'.api_get_cidreq().'&action=delete&item_id='.$item_id.'&id='.$work['parent_id'].'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES))."'".')) return false;" title="'.get_lang('Delete').'"  >'.
+                            Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL).'</a>';
                     } else {
-                        $action .= Display::return_icon('edit_na.png', get_lang('Modify'),array(), ICON_SIZE_SMALL);
+                        $action .= Display::return_icon('edit_na.png', get_lang('Modify'), array(), ICON_SIZE_SMALL);
                     }
                 } else {
                     $action .= '<a href="'.$url.'view.php?'.api_get_cidreq().'&id='.$item_id.'" title="'.get_lang('View').'">'.
-                        Display::return_icon('default.png', get_lang('View'),array(), ICON_SIZE_SMALL).'</a>';
-                    $action .= Display::return_icon('edit_na.png', get_lang('Modify'),array(), ICON_SIZE_SMALL);
+                        Display::return_icon('default.png', get_lang('View'), array(), ICON_SIZE_SMALL).'</a>';
+                    $action .= Display::return_icon('edit_na.png', get_lang('Modify'), array(), ICON_SIZE_SMALL);
                 }
 
                 // Status.
@@ -2207,7 +2207,7 @@ 
     $_course = api_get_course_info();
     $task_id = $task_data['id'];
     $task_title = !empty($task_data['title']) ? $task_data['title'] : basename($task_data['url']);
-    $subject = '[' . api_get_setting('siteName') . '] ';
+    $subject = '['.api_get_setting('siteName').'] ';
 
     // The body can be as long as you wish, and any combination of text and variables
     $content = get_lang('ReminderToSubmitPendingTask')."\n".get_lang('CourseName').' : '.$_course['name']."\n";
@@ -2218,7 +2218,7 @@ 
     $mails_sent_to = array();
     foreach ($list_users as $user) {
         $name_user = api_get_person_name($user[1], $user[0], null, PERSON_NAME_EMAIL_ADDRESS);
-        $dear_line = get_lang('Dear')." ".api_get_person_name($user[1], $user[0]) .", \n\n";
+        $dear_line = get_lang('Dear')." ".api_get_person_name($user[1], $user[0]).", \n\n";
         $body      = $dear_line.$content;
         MessageManager::send_message($user[3], $subject, $body);
         $mails_sent_to[] = $name_user;
@@ -2247,22 +2247,22 @@ 
     } else {
         $students = CourseManager::get_student_list_from_course_code($courseCode, true, $sessionId);
     }
-    $emailsubject = '[' . api_get_setting('siteName') . '] '.get_lang('HomeworkCreated');
+    $emailsubject = '['.api_get_setting('siteName').'] '.get_lang('HomeworkCreated');
     $currentUser = api_get_user_info(api_get_user_id());
     if (!empty($students)) {
-        foreach($students as $student) {
+        foreach ($students as $student) {
             $user_info = api_get_user_info($student["user_id"]);
-            if(!empty($user_info["mail"])) {
+            if (!empty($user_info["mail"])) {
                 $name_user = api_get_person_name(
                     $user_info["firstname"],
                     $user_info["lastname"],
                     null,
                     PERSON_NAME_EMAIL_ADDRESS
                 );
-                $link = api_get_path(WEB_CODE_PATH) . 'work/work_list_all.php?' . api_get_cidreq() . '&id=' . $workId;
+                $link = api_get_path(WEB_CODE_PATH).'work/work_list_all.php?'.api_get_cidreq().'&id='.$workId;
                 $emailbody = get_lang('Dear')." ".$name_user.",\n\n";
                 $emailbody .= get_lang('HomeworkHasBeenCreatedForTheCourse')." ".$courseCode.". "."\n\n".
-                    '<a href="'. $link . '">' . get_lang('PleaseCheckHomeworkPage') . '</a>';
+                    '<a href="'.$link.'">'.get_lang('PleaseCheckHomeworkPage').'</a>';
                 $emailbody .= "\n\n".api_get_person_name($currentUser["firstname"], $currentUser["lastname"]);
 
                 $additionalParameters = array(
@@ -2304,7 +2304,7 @@ 
     $url = Database::escape_string($url);
     $sql = "SELECT id FROM $work_table WHERE url='$url'";
     $result = Database::query($sql);
-    if (Database::num_rows($result)> 0) {
+    if (Database::num_rows($result) > 0) {
         $row = Database::fetch_row($result);
         if (empty($row)) {
             return false;
@@ -2326,7 +2326,7 @@ 
 {
     $output = '<select name="'.$name.'" id="'.$name.'">';
     foreach ($values as $key => $value) {
-        $output .= '<option value="'.$key.'" '.(($checked==$key) ? 'selected="selected"' : '').'>'.$value.'</option>';
+        $output .= '<option value="'.$key.'" '.(($checked == $key) ? 'selected="selected"' : '').'>'.$value.'</option>';
     }
     $output .= '</select>';
     return $output;
@@ -2340,9 +2340,9 @@ 
  */
 function make_checkbox($name, $checked = '', $label = null)
 {
-    $check = '<input id ="'.$name.'" type="checkbox" value="1" name="'.$name.'" '.((!empty($checked))?'checked="checked"':'').'/>';
+    $check = '<input id ="'.$name.'" type="checkbox" value="1" name="'.$name.'" '.((!empty($checked)) ? 'checked="checked"' : '').'/>';
     if (!empty($label)) {
-        $check .="<label for ='$name'>$label</label>";
+        $check .= "<label for ='$name'>$label</label>";
     }
     return $check;
 }
@@ -2496,7 +2496,7 @@ 
     }
 
     if (!empty($studentId)) {
-        $sql_users.= " AND u.user_id = ".intval($studentId);
+        $sql_users .= " AND u.user_id = ".intval($studentId);
     }
 
     $group_id = api_get_group_id();
@@ -2506,7 +2506,7 @@ 
     if ($group_id) {
         $group_user_list = GroupManager::get_subscribed_users($group_id);
         if (!empty($group_user_list)) {
-            foreach($group_user_list as $group_user) {
+            foreach ($group_user_list as $group_user) {
                 $new_group_user_list[] = $group_user['user_id'];
             }
         }
@@ -2927,7 +2927,7 @@ 
 function getWorkComments($work)
 {
     $commentTable = Database::get_course_table(TABLE_STUDENT_PUBLICATION_ASSIGNMENT_COMMENT);
-    $userTable= Database::get_main_table(TABLE_MAIN_USER);
+    $userTable = Database::get_main_table(TABLE_MAIN_USER);
 
     $courseId = intval($work['c_id']);
     $workId = intval($work['id']);
@@ -3610,7 +3610,7 @@ 
             null,
             PERSON_NAME_EMAIL_ADDRESS
         );
-        $subject = "[" . api_get_setting('siteName') . "] ".get_lang('SendMailBody')."\n ".get_lang('CourseName').": ".$courseInfo['name']."  ";
+        $subject = "[".api_get_setting('siteName')."] ".get_lang('SendMailBody')."\n ".get_lang('CourseName').": ".$courseInfo['name']."  ";
         foreach ($user_list as $user_data) {
             $to_user_id = $user_data['user_id'];
             $user_info = api_get_user_info($to_user_id);
@@ -3659,7 +3659,7 @@ 
 
     $title = $values['title'];
     $description = $values['description'];
-    $contains_file = isset($values['contains_file']) && !empty($values['contains_file']) ? intval($values['contains_file']): 0;
+    $contains_file = isset($values['contains_file']) && !empty($values['contains_file']) ? intval($values['contains_file']) : 0;
 
     $saveWork = true;
     $message = null;
@@ -4026,8 +4026,8 @@ 
                     LINK_STUDENTPUBLICATION,
                     $workId,
                     $params['new_dir'],
-                    (float)$params['weight'],
-                    (float)$params['qualification'],
+                    (float) $params['weight'],
+                    (float) $params['qualification'],
                     $params['description'],
                     1,
                     api_get_session_id()
@@ -4287,15 +4287,15 @@ 
     // changing the tool setting: is a student allowed to delete his/her own document
 
     // counting the number of occurrences of this setting (if 0 => add, if 1 => update)
-    $query = "SELECT * FROM " . $table_course_setting . "
+    $query = "SELECT * FROM ".$table_course_setting."
               WHERE c_id = $courseId AND variable = 'student_delete_own_publication'";
 
     $result = Database::query($query);
     $number_of_setting = Database::num_rows($result);
 
     if ($number_of_setting == 1) {
-        $query = "UPDATE " . $table_course_setting . " SET
-                  value='" . Database::escape_string($studentDeleteOwnPublication) . "'
+        $query = "UPDATE ".$table_course_setting." SET
+                  value='" . Database::escape_string($studentDeleteOwnPublication)."'
                   WHERE variable = 'student_delete_own_publication' AND c_id = $courseId";
         Database::query($query);
     } else {
@@ -4334,9 +4334,9 @@ 
     $work_table = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);
     $item_id = intval($item_id);
     $course_id = $course_info['real_id'];
-    $sql = "UPDATE  " . $work_table . "
+    $sql = "UPDATE  ".$work_table."
             SET accepted = 0
-            WHERE c_id = $course_id AND id = '" . $item_id . "'";
+            WHERE c_id = $course_id AND id = '".$item_id."'";
     Database::query($sql);
     api_item_property_update(
         $course_info,
@@ -4480,7 +4480,7 @@ 
                 $courseCode,
                 $sessionId,
                 $limitString,
-                $orderBy ,
+                $orderBy,
                 STUDENT,
                 $getCount
             );
@@ -4817,8 +4817,8 @@ 
     if (!empty($sessionId)) {
         $sessionInfo = api_get_session_info($sessionId);
         if (!empty($sessionInfo)) {
-            $header .= ' - ' . $sessionInfo['name'];
-            $header .= '<br />' . $sessionInfo['description'];
+            $header .= ' - '.$sessionInfo['name'];
+            $header .= '<br />'.$sessionInfo['description'];
             $teachers = SessionManager::getCoachesByCourseSessionToString(
                 $sessionId,
                 $courseInfo['real_id']
@@ -4834,12 +4834,12 @@ 
     $expiresOn = null;
 
     if (!empty($assignment) && isset($assignment['expires_on'])) {
-        $content .= '<br /><strong>' . get_lang('ExpirationDate') . '</strong>: ' . api_get_local_time($assignment['expires_on']);
+        $content .= '<br /><strong>'.get_lang('ExpirationDate').'</strong>: '.api_get_local_time($assignment['expires_on']);
         $expiresOn = api_get_local_time($assignment['expires_on']);
     }
 
     if (!empty($workData['description'])) {
-        $content .= '<br /><strong>' . get_lang('Description') . '</strong>: ' . $workData['description'];
+        $content .= '<br /><strong>'.get_lang('Description').'</strong>: '.$workData['description'];
     }
 
     $workList = get_work_user_list(null, null, null, null, $workId);
@@ -4860,7 +4860,7 @@ 
                 );
 
                 $column = 0;
-                foreach($headers as $header) {
+                foreach ($headers as $header) {
                     $table->setHeaderContents(0, $column, $header);
                     $column++;
                 }
@@ -4908,7 +4908,7 @@ 
 
                 if (!empty($content)) {
                     $params = array(
-                        'filename' => $workData['title'] . '_' . api_get_local_time(),
+                        'filename' => $workData['title'].'_'.api_get_local_time(),
                         'pdf_title' => api_replace_dangerous_char($workData['title']),
                         'course_code' => $courseInfo['code'],
                         'add_signatures' => false
@@ -4939,7 +4939,7 @@ 
     $tempZipFile = api_get_path(SYS_ARCHIVE_PATH).api_get_unique_id().".zip";
     $coursePath = api_get_path(SYS_COURSE_PATH).$courseInfo['path'].'/work/';
 
-    $zip  = new PclZip($tempZipFile);
+    $zip = new PclZip($tempZipFile);
 
     $workPerUser = getWorkPerUser($userId);
 

main/forum/forumfunction.inc.php

Indentation +10 added lines, -10 removed lines

@@ -1316,16 +1316,16 @@
     }
 }
 /**
- * Retrieve all the information off the forum categories (or one specific) for the current course.
- * The categories are sorted according to their sorting order (cat_order
- *
- * @param int $id default ''. When an id is passed we only find the information
- * about that specific forum category. If no id is passed we get all the forum categories.
- * @return array containing all the information about all the forum categories
- *
- * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
- * @version february 2006, dokeos 1.8
- */
+     * Retrieve all the information off the forum categories (or one specific) for the current course.
+     * The categories are sorted according to their sorting order (cat_order
+     *
+     * @param int $id default ''. When an id is passed we only find the information
+     * about that specific forum category. If no id is passed we get all the forum categories.
+     * @return array containing all the information about all the forum categories
+     *
+     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
+     * @version february 2006, dokeos 1.8
+     */
 function get_forum_categories($id = '')
 {
     $table_categories = Database :: get_course_table(TABLE_FORUM_CATEGORY);

Spacing +62 added lines, -62 removed lines

@@ -69,7 +69,7 @@ 
                     file.delete + '<\/td>' +
                     '<input type=\"hidden\" value=\"' + file.id +'\" name=\"file_ids[]\">' + '<\/tr>');
             } else {
-                alert('" . get_lang('UploadError') . "');
+                alert('" . get_lang('UploadError')."');
             }
         }
     });
@@ -89,10 +89,10 @@ 
             var l = $(this);
             var id = l.closest("tr").attr("id");
             var filename = l.closest("tr").find(".attachFilename").html();
-            if (confirm("' . get_lang('AreYouSureToDeleteJS') . '", filename)) {
+            if (confirm("' . get_lang('AreYouSureToDeleteJS').'", filename)) {
                 $.ajax({
                     type: "POST",
-                    url: "'.api_get_path(WEB_AJAX_PATH) . 'forum.ajax.php?'.api_get_cidreq().'&a=delete_file&attachId=" + id +"&thread='.$threadId .'&forum='.$forumId .'",
+                    url: "'.api_get_path(WEB_AJAX_PATH).'forum.ajax.php?'.api_get_cidreq().'&a=delete_file&attachId=" + id +"&thread='.$threadId.'&forum='.$forumId.'",
                     dataType: "json",
                     success: function(data) {
                         if (data.error == false) {
@@ -991,24 +991,24 @@ 
     $html = '';
     $id = Security::remove_XSS($id);
     if ($current_visibility_status == '1') {
-        $html .= '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&';
+        $html .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&';
         if (is_array($additional_url_parameters)) {
             foreach ($additional_url_parameters as $key => $value) {
-                $html .= $key . '=' . $value . '&';
+                $html .= $key.'='.$value.'&';
             }
         }
-        $html.='action=invisible&content='.$content.'&id='.$id.'">'.
+        $html .= 'action=invisible&content='.$content.'&id='.$id.'">'.
             Display::return_icon('visible.png', get_lang('MakeInvisible'), array(), ICON_SIZE_SMALL).'</a>';
     }
     if ($current_visibility_status == '0') {
-        $html .= '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&';
+        $html .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&';
         if (is_array($additional_url_parameters)) {
             foreach ($additional_url_parameters as $key => $value) {
-                $html .= $key . '=' . $value . '&';
+                $html .= $key.'='.$value.'&';
             }
         }
-        $html .= 'action=visible&content=' . $content . '&id=' . $id . '">' .
-            Display::return_icon('invisible.png', get_lang('MakeVisible'), array(), ICON_SIZE_SMALL) . '</a>';
+        $html .= 'action=visible&content='.$content.'&id='.$id.'">'.
+            Display::return_icon('invisible.png', get_lang('MakeVisible'), array(), ICON_SIZE_SMALL).'</a>';
     }
     return $html;
 }
@@ -1029,21 +1029,21 @@ 
         $html .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&';
         if (is_array($additional_url_parameters)) {
             foreach ($additional_url_parameters as $key => $value) {
-                $html .= $key . '=' . $value . '&';
+                $html .= $key.'='.$value.'&';
             }
         }
-        $html.= 'action=unlock&content='.$content.'&id='.$id.'">'.
+        $html .= 'action=unlock&content='.$content.'&id='.$id.'">'.
             Display::return_icon('lock.png', get_lang('Unlock'), array(), ICON_SIZE_SMALL).'</a>';
     }
     if ($current_lock_status == '0') {
         $html .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&';
         if (is_array($additional_url_parameters)) {
             foreach ($additional_url_parameters as $key => $value) {
-                $html .= $key . '=' . $value . '&';
+                $html .= $key.'='.$value.'&';
             }
         }
-        $html .= 'action=lock&content=' . $content . '&id=' . $id . '">' .
-            Display::return_icon('unlock.png', get_lang('Lock'), array(), ICON_SIZE_SMALL) . '</a>';
+        $html .= 'action=lock&content='.$content.'&id='.$id.'">'.
+            Display::return_icon('unlock.png', get_lang('Lock'), array(), ICON_SIZE_SMALL).'</a>';
     }
     return $html;
 }
@@ -1246,7 +1246,7 @@ 
                     forum_categories.c_id = $course_id AND
                     item_properties.c_id = $course_id AND
                     forum_categories.cat_id=item_properties.ref AND
-                    item_properties.tool='" . TOOL_FORUM_CATEGORY . "'
+                    item_properties.tool='".TOOL_FORUM_CATEGORY."'
                 ORDER BY forum_categories.cat_order $sort_direction";
     }
     if ($content == 'forum') {
@@ -1254,7 +1254,7 @@ 
             FROM $table
             WHERE
                 c_id = $course_id AND
-                forum_category='" . Database::escape_string($forum_category) . "'
+                forum_category='".Database::escape_string($forum_category)."'
             ORDER BY forum_order $sort_direction";
     }
     // Finding the items that need to be switched.
@@ -1311,7 +1311,7 @@ 
 {
     $current_visibility_status = intval($current_visibility_status);
     if ($current_visibility_status == 0) {
-        $status='invisible';
+        $status = 'invisible';
         return $status;
     }
 }
@@ -2211,7 +2211,7 @@ 
 {
     $table_forums = Database :: get_course_table(TABLE_FORUM);
     $table_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
-    $courseId = empty($courseId) ? api_get_course_int_id(): intval($courseId);
+    $courseId = empty($courseId) ? api_get_course_int_id() : intval($courseId);
     $forum_id = intval($forum_id);
 
     $sql = "SELECT *
@@ -2370,7 +2370,7 @@ 
  */
 function store_thread($current_forum, $values, $courseInfo = array(), $showMessage = true)
 {
-    $courseInfo = empty($courseInfo) ? api_get_course_info() : $courseInfo ;
+    $courseInfo = empty($courseInfo) ? api_get_course_info() : $courseInfo;
     $_user = api_get_user_info();
     $course_id = $courseInfo['real_id'];
     $courseCode = $courseInfo['code'];
@@ -2614,11 +2614,11 @@ 
     $form = new FormValidator(
         'thread',
         'post',
-        api_get_self() . '?' . http_build_query([
+        api_get_self().'?'.http_build_query([
             'forum' => $myForum,
             'gradebook' => $myGradebook,
             'thread' => $myThread,
-        ]) . '&' . api_get_cidreq()
+        ]).'&'.api_get_cidreq()
     );
 
     $form->addElement('header', get_lang('EditThread'));
@@ -2683,7 +2683,7 @@ 
     $form->addElement('html', '</div>');
 
     if (!empty($formValues)) {
-        $defaults['thread_qualify_gradebook'] = ($formValues['threadQualifyMax'] > 0 && empty($_POST)) ? 1 : 0 ;
+        $defaults['thread_qualify_gradebook'] = ($formValues['threadQualifyMax'] > 0 && empty($_POST)) ? 1 : 0;
         $defaults['thread_title'] = prepare4display($formValues['threadTitle']);
         $defaults['thread_sticky'] = strval(intval($formValues['threadSticky']));
         $defaults['thread_peer_qualify'] = intval($formValues['threadPeerQualify']);
@@ -2755,13 +2755,13 @@ 
     $form = new FormValidator(
         'thread',
         'post',
-        api_get_self() . '?' . http_build_query([
+        api_get_self().'?'.http_build_query([
             'forum' => intval($my_forum),
             'gradebook' => $my_gradebook,
             'thread' => intval($myThread),
             'post' => intval($my_post),
             'action' => $action,
-        ]) . '&' . api_get_cidreq()
+        ]).'&'.api_get_cidreq()
     );
     $form->setConstants(array('forum' => '5'));
 
@@ -3024,7 +3024,7 @@ 
 
             if ($row[0] == 0) {
                 $sql = "INSERT INTO $table_threads_qualify (c_id, user_id, thread_id,qualify,qualify_user_id,qualify_time,session_id)
-                        VALUES (".$course_id.", '".$user_id."','".$thread_id."',".(float)$thread_qualify.", '".$currentUserId."','".$qualify_time."','".$session_id."')";
+                        VALUES (".$course_id.", '".$user_id."','".$thread_id."',".(float) $thread_qualify.", '".$currentUserId."','".$qualify_time."','".$session_id."')";
                 Database::query($sql);
 
                 $insertId = Database::insert_id();
@@ -4627,9 +4627,9 @@ 
             continue;
         }
 
-        $course_dir = $_course['path'] . '/upload/forum';
+        $course_dir = $_course['path'].'/upload/forum';
         $sys_course_path = api_get_path(SYS_COURSE_PATH);
-        $updir = $sys_course_path . $course_dir;
+        $updir = $sys_course_path.$course_dir;
 
         // Try to add an extension to the file if it hasn't one.
         $new_file_name = add_ext_on_mime(
@@ -4646,7 +4646,7 @@ 
         }
 
         $new_file_name = uniqid('');
-        $new_path = $updir . '/' . $new_file_name;
+        $new_path = $updir.'/'.$new_file_name;
         $result = @move_uploaded_file($attachment['tmp_name'], $new_path);
         $safe_file_comment = Database::escape_string($file_comment);
         $safe_file_name = Database::escape_string($file_name);
@@ -4811,16 +4811,16 @@ 
     $forum_table_attachment = Database::get_course_table(TABLE_FORUM_ATTACHMENT);
     $course_id = api_get_course_int_id();
 
-    $cond = (!empty($id_attach)) ? " iid = " . (int) $id_attach . "" : " post_id = " . (int) $post_id . "";
+    $cond = (!empty($id_attach)) ? " iid = ".(int) $id_attach."" : " post_id = ".(int) $post_id."";
     $sql = "SELECT path FROM $forum_table_attachment WHERE c_id = $course_id AND $cond";
     $res = Database::query($sql);
     $row = Database::fetch_array($res);
 
-    $course_dir = $_course['path'] . '/upload/forum';
+    $course_dir = $_course['path'].'/upload/forum';
     $sys_course_path = api_get_path(SYS_COURSE_PATH);
-    $updir = $sys_course_path . $course_dir;
+    $updir = $sys_course_path.$course_dir;
     $my_path = isset($row['path']) ? $row['path'] : null;
-    $file = $updir . '/' . $my_path;
+    $file = $updir.'/'.$my_path;
     if (Security::check_abs_path($file, $updir)) {
         @unlink($file);
     }
@@ -5368,35 +5368,35 @@ 
                         $post_list = get_thread_user_post_limit($course_code, $thread['thread_id'], $user_id, 1);
                         $post_counter = count($post_list);
                         if (is_array($post_list) && count($post_list) > 0) {
-                            $hand_forums.= '<div id="social-thread">';
-                            $hand_forums.= Display::return_icon('thread.png', get_lang('Thread'), '', ICON_SIZE_MEDIUM);
-                            $hand_forums.= '&nbsp;'.Security::remove_XSS($thread['thread_title'], STUDENT);
-                            $hand_forums.= '</div>';
+                            $hand_forums .= '<div id="social-thread">';
+                            $hand_forums .= Display::return_icon('thread.png', get_lang('Thread'), '', ICON_SIZE_MEDIUM);
+                            $hand_forums .= '&nbsp;'.Security::remove_XSS($thread['thread_title'], STUDENT);
+                            $hand_forums .= '</div>';
 
                             foreach ($post_list as $posts) {
-                                $hand_forums.= '<div id="social-post">';
-                                $hand_forums.= '<strong>'.Security::remove_XSS($posts['post_title'], STUDENT).'</strong>';
-                                $hand_forums.= '<br / >';
-                                $hand_forums.= Security::remove_XSS($posts['post_text'], STUDENT);
-                                $hand_forums.= '</div>';
-                                $hand_forums.= '<br / >';
+                                $hand_forums .= '<div id="social-post">';
+                                $hand_forums .= '<strong>'.Security::remove_XSS($posts['post_title'], STUDENT).'</strong>';
+                                $hand_forums .= '<br / >';
+                                $hand_forums .= Security::remove_XSS($posts['post_text'], STUDENT);
+                                $hand_forums .= '</div>';
+                                $hand_forums .= '<br / >';
                             }
                         }
                     }
                     $i++;
                 }
-                $forum_results .='<div id="social-forum">';
-                $forum_results .='<div class="clear"></div><br />';
-                $forum_results .='<div id="social-forum-title">'.
+                $forum_results .= '<div id="social-forum">';
+                $forum_results .= '<div class="clear"></div><br />';
+                $forum_results .= '<div id="social-forum-title">'.
                     Display::return_icon('forum.gif', get_lang('Forum')).'&nbsp;'.Security::remove_XSS($forum['forum_title'], STUDENT).
                     '<div style="float:right;margin-top:-35px">
                                         <a href="../forum/viewforum.php?cidReq='.$course_code.'&gidReq=&forum='.$forum['forum_id'].' " >'.get_lang('SeeForum').'</a>
                                     </div></div>';
-                $forum_results .='<br / >';
+                $forum_results .= '<br / >';
                 if ($post_counter > 0) {
-                    $forum_results .=$hand_forums;
+                    $forum_results .= $hand_forums;
                 }
-                $forum_results .='</div>';
+                $forum_results .= '</div>';
             }$j++;
         }
     }
@@ -5537,16 +5537,16 @@ 
     $courseId = intval($courseId);
     if (empty($courseId)) {
         // $courseId can be null, use api method
-        $courseId= api_get_course_int_id();
+        $courseId = api_get_course_int_id();
     }
     /*
      * Check if Attachment ID and Course ID are greater than zero
      * and array of field values is not empty
      */
     if ($id > 0 && $courseId > 0 && !empty($array) && is_array($array)) {
-        foreach($array as $key => &$item) {
+        foreach ($array as $key => &$item) {
             $item = Database::escape_string($item);
-            $setString .= $key . ' = "' .$item . '", ';
+            $setString .= $key.' = "'.$item.'", ';
         }
         // Delete last comma
         $setString = substr($setString, 0, strlen($setString) - 2);
@@ -5590,7 +5590,7 @@ 
         return '';
     }
 
-    $url = api_get_path(WEB_AJAX_PATH).'forum.ajax.php?'.api_get_cidreq().'&forum=' . $forumId . '&thread=' . $threadId . '&postId=' . $postId . '&a=upload_file';
+    $url = api_get_path(WEB_AJAX_PATH).'forum.ajax.php?'.api_get_cidreq().'&forum='.$forumId.'&thread='.$threadId.'&postId='.$postId.'&a=upload_file';
     // Form
     $formFileUpload = '<div class="form-ajax">
         <form id="file_upload" action="'.$url.'" method="POST" enctype="multipart/form-data">
@@ -5638,10 +5638,10 @@ 
         foreach ($uploadedFiles as $k => $uploadedFile) {
             if (!empty($uploadedFile) && in_array($uploadedFile['id'], $attachIds)) {
                 // Buil html table including an input with attachmentID
-                $fileDataContent .= '<tr id="' . $uploadedFile['id'] . '" ><td>' . $uploadedFile['name'] . '</td><td>' . $uploadedFile['size'] . '</td><td>&nbsp;' . $uploadedFile['result'] .
-                    ' </td><td> <input style="width:90%;" type="text" value="' . $uploadedFile['comment'] . '" name="file_comments[]"> </td><td>' .
-                    $uploadedFile['delete'] . '</td>' .
-                    '<input type="hidden" value="' . $uploadedFile['id'] .'" name="file_ids[]">' . '</tr>';
+                $fileDataContent .= '<tr id="'.$uploadedFile['id'].'" ><td>'.$uploadedFile['name'].'</td><td>'.$uploadedFile['size'].'</td><td>&nbsp;'.$uploadedFile['result'].
+                    ' </td><td> <input style="width:90%;" type="text" value="'.$uploadedFile['comment'].'" name="file_comments[]"> </td><td>'.
+                    $uploadedFile['delete'].'</td>'.
+                    '<input type="hidden" value="'.$uploadedFile['id'].'" name="file_ids[]">'.'</tr>';
             } else {
                 /*
                  * If attachment data is empty, then delete it from $_SESSION
@@ -5654,7 +5654,7 @@ 
     $style = empty($fileDataContent) ? 'display: none;' : '';
     // Forum attachment Ajax table
     $fileData = '
-    <div class="control-group " style="'. $style . '">
+    <div class="control-group " style="'. $style.'">
         <label class="control-label">'.get_lang('AttachmentList').'</label>
         <div class="controls">
             <table id="attachmentFileList" class="files data_table span10">
@@ -5726,7 +5726,7 @@ 
             // name contains an URL to download attachment file and its filename
             $json['name'] = Display::url(
                 api_htmlentities($row['filename']),
-                api_get_path(WEB_CODE_PATH) . 'forum/download.php?file='.$row['path'].'&'.api_get_cidreq(),
+                api_get_path(WEB_CODE_PATH).'forum/download.php?file='.$row['path'].'&'.api_get_cidreq(),
                 array('target'=>'_blank', 'class' => 'attachFilename')
             );
             $json['id'] = $row['iid'];
@@ -5737,9 +5737,9 @@ 
             if (!empty($row) && is_array($row)) {
                 // Set result as success and bring delete URL
                 $json['result'] = Display::return_icon('accept.png', get_lang('Uploaded'));
-                $url = api_get_path(WEB_CODE_PATH) . 'forum/viewthread.php?' . api_get_cidreq() . '&action=delete_attach&forum=' . $forumId . '&thread=' . $threadId.'&id_attach=' . $row['iid'];
+                $url = api_get_path(WEB_CODE_PATH).'forum/viewthread.php?'.api_get_cidreq().'&action=delete_attach&forum='.$forumId.'&thread='.$threadId.'&id_attach='.$row['iid'];
                 $json['delete'] = Display::url(
-                    Display::return_icon('delete.png',get_lang('Delete'), array(), ICON_SIZE_SMALL),
+                    Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL),
                     $url,
                     array('class' => 'deleteLink')
                 );
@@ -5828,7 +5828,7 @@ 
                 WHERE c_id = $courseId AND post_id = $postId";
         $result = Database::query($sql);
         if ($result !== false && Database::num_rows($result) > 0) {
-            while ($row = Database::fetch_array($result,'ASSOC')) {
+            while ($row = Database::fetch_array($result, 'ASSOC')) {
                 $array[] = $row['id'];
             }
         }

main/document/upload.php

Spacing +7 added lines, -7 removed lines

@@ -68,7 +68,7 @@ 
 }
 
 if (empty($document_data)) {
-    $document_id  = $parent_id =  0;
+    $document_id = $parent_id = 0;
     $path = '/';
 } else {
     $document_id = $document_data['id'];
@@ -307,16 +307,16 @@ 
 
 // Link back to the documents overview
 if ($is_certificate_mode) {
-    $actions = '<a href="document.php?id='.$document_id.'&selectcat=' . $selectcat.'&'.api_get_cidreq().'">'.
-        Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('CertificateOverview'),'',ICON_SIZE_MEDIUM).'</a>';
+    $actions = '<a href="document.php?id='.$document_id.'&selectcat='.$selectcat.'&'.api_get_cidreq().'">'.
+        Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('CertificateOverview'), '', ICON_SIZE_MEDIUM).'</a>';
 } else {
     $actions = '<a href="document.php?id='.$document_id.'&'.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>';
 }
 
 // Link to create a folder
 
-echo $toolbar = Display::toolbarAction('toolbar-upload', array( 0 => $actions), 1);
+echo $toolbar = Display::toolbarAction('toolbar-upload', array(0 => $actions), 1);
 // Form to select directory
 $folders = DocumentManager::get_all_document_folders($_course, $groupId, $is_allowed_to_edit);
 if (!$is_certificate_mode) {
@@ -365,7 +365,7 @@ 
     $form->addElement('checkbox', 'index_document', '', get_lang('SearchFeatureDoIndexDocument').'<div style="font-size: 80%" >'.$supported_formats.'</div>');
     $form->addElement('html', '<br /><div class="sub-form">');
     $form->addElement('html', '<div class="label">'.get_lang('SearchFeatureDocumentLanguage').'</div>');
-    $form->addElement('html', '<div>' . api_get_languages_combo(null) . '</div>');
+    $form->addElement('html', '<div>'.api_get_languages_combo(null).'</div>');
     $form->addElement('html', '</div><div class="sub-form">');
     $specific_fields = get_specific_field_list();
     foreach ($specific_fields as $specific_field) {
@@ -401,7 +401,7 @@ 
 $simple_form = $form->returnForm();
 
 $multiple_form = '<div class="description-upload">'.get_lang('ClickToSelectOrDragAndDropMultipleFilesOnTheUploadField').'</div>';
-$multiple_form .=  '
+$multiple_form .= '
 <span class="btn btn-success fileinput-button">
     <i class="glyphicon glyphicon-plus"></i>
     <span>'.get_lang('AddFiles').'</span>