chamilo / chamilo-lms

main/inc/lib/api.lib.php

Spacing +149 added lines, -149 removed lines

@@ -39,19 +39,19 @@ 
 define('PLATFORM_ADMIN', 11);
 define('SESSION_COURSE_COACH', 12);
 define('SESSION_GENERAL_COACH', 13);
-define('COURSE_STUDENT', 14);   //student subscribed in a course
-define('SESSION_STUDENT', 15);  //student subscribed in a session course
+define('COURSE_STUDENT', 14); //student subscribed in a course
+define('SESSION_STUDENT', 15); //student subscribed in a session course
 define('COURSE_TUTOR', 16); // student is tutor of a course (NOT in session)
 define('STUDENT_BOSS', 17); // student is boss
 define('INVITEE', 20);
 
 // Table of status
-$_status_list[COURSEMANAGER] = 'teacher';        // 1
-$_status_list[SESSIONADMIN] = 'session_admin';  // 3
-$_status_list[DRH] = 'drh';            // 4
-$_status_list[STUDENT] = 'user';           // 5
-$_status_list[ANONYMOUS] = 'anonymous';      // 6
-$_status_list[INVITEE] = 'invited';        // 20
+$_status_list[COURSEMANAGER] = 'teacher'; // 1
+$_status_list[SESSIONADMIN] = 'session_admin'; // 3
+$_status_list[DRH] = 'drh'; // 4
+$_status_list[STUDENT] = 'user'; // 5
+$_status_list[ANONYMOUS] = 'anonymous'; // 6
+$_status_list[INVITEE] = 'invited'; // 20
 
 // COURSE VISIBILITY CONSTANTS
 /** only visible for course admin */
@@ -263,14 +263,14 @@ 
 define('IS_WINDOWS_OS', api_is_windows_os());
 
 // Checks for installed optional php-extensions.
-define('INTL_INSTALLED', function_exists('intl_get_error_code'));   // intl extension (from PECL), it is installed by default as of PHP 5.3.0
-define('ICONV_INSTALLED', function_exists('iconv'));                // iconv extension, for PHP5 on Windows it is installed by default.
-define('MBSTRING_INSTALLED', function_exists('mb_strlen'));         // mbstring extension.
+define('INTL_INSTALLED', function_exists('intl_get_error_code')); // intl extension (from PECL), it is installed by default as of PHP 5.3.0
+define('ICONV_INSTALLED', function_exists('iconv')); // iconv extension, for PHP5 on Windows it is installed by default.
+define('MBSTRING_INSTALLED', function_exists('mb_strlen')); // mbstring extension.
 
 // Patterns for processing paths.                                   // Examples:
-define('REPEATED_SLASHES_PURIFIER', '/\/{2,}/');                    // $path = preg_replace(REPEATED_SLASHES_PURIFIER, '/', $path);
-define('VALID_WEB_PATH', '/https?:\/\/[^\/]*(\/.*)?/i');            // $is_valid_path = preg_match(VALID_WEB_PATH, $path);
-define('VALID_WEB_SERVER_BASE', '/https?:\/\/[^\/]*/i');            // $new_path = preg_replace(VALID_WEB_SERVER_BASE, $new_base, $path);
+define('REPEATED_SLASHES_PURIFIER', '/\/{2,}/'); // $path = preg_replace(REPEATED_SLASHES_PURIFIER, '/', $path);
+define('VALID_WEB_PATH', '/https?:\/\/[^\/]*(\/.*)?/i'); // $is_valid_path = preg_match(VALID_WEB_PATH, $path);
+define('VALID_WEB_SERVER_BASE', '/https?:\/\/[^\/]*/i'); // $new_path = preg_replace(VALID_WEB_SERVER_BASE, $new_base, $path);
 
 // Constants for api_get_path() and api_get_path_type(), etc. - registered path types.
 define('WEB_PATH', 'WEB_PATH');
@@ -374,19 +374,19 @@ 
 define('LINK_HOTPOTATOES', 9);
 
 // Score display types constants
-define('SCORE_DIV', 1);    // X / Y
-define('SCORE_PERCENT', 2);    // XX %
-define('SCORE_DIV_PERCENT', 3);    // X / Y (XX %)
-define('SCORE_AVERAGE', 4);    // XX %
-define('SCORE_DECIMAL', 5);    // 0.50  (X/Y)
-define('SCORE_BAR', 6);    // Uses the Display::bar_progress function
-define('SCORE_SIMPLE', 7);    // X
-define('SCORE_IGNORE_SPLIT', 8);    //  ??
-define('SCORE_DIV_PERCENT_WITH_CUSTOM', 9);    // X / Y (XX %) - Good!
-define('SCORE_CUSTOM', 10);    // Good!
-define('SCORE_DIV_SIMPLE_WITH_CUSTOM', 11);    // X - Good!
-define('SCORE_DIV_SIMPLE_WITH_CUSTOM_LETTERS', 12);    // X - Good!
-define('SCORE_ONLY_SCORE', 13);    // X - Good!
+define('SCORE_DIV', 1); // X / Y
+define('SCORE_PERCENT', 2); // XX %
+define('SCORE_DIV_PERCENT', 3); // X / Y (XX %)
+define('SCORE_AVERAGE', 4); // XX %
+define('SCORE_DECIMAL', 5); // 0.50  (X/Y)
+define('SCORE_BAR', 6); // Uses the Display::bar_progress function
+define('SCORE_SIMPLE', 7); // X
+define('SCORE_IGNORE_SPLIT', 8); //  ??
+define('SCORE_DIV_PERCENT_WITH_CUSTOM', 9); // X / Y (XX %) - Good!
+define('SCORE_CUSTOM', 10); // Good!
+define('SCORE_DIV_SIMPLE_WITH_CUSTOM', 11); // X - Good!
+define('SCORE_DIV_SIMPLE_WITH_CUSTOM_LETTERS', 12); // X - Good!
+define('SCORE_ONLY_SCORE', 13); // X - Good!
 
 define('SCORE_BOTH', 1);
 define('SCORE_ONLY_DEFAULT', 2);
@@ -570,8 +570,8 @@ 
 define('TIMELINE_STATUS_INACTIVE', '2');
 
 // Event email template class
-define ('EVENT_EMAIL_TEMPLATE_ACTIVE',  1);
-define ('EVENT_EMAIL_TEMPLATE_INACTIVE', 0);
+define('EVENT_EMAIL_TEMPLATE_ACTIVE', 1);
+define('EVENT_EMAIL_TEMPLATE_INACTIVE', 0);
 
 // Course home
 define('SHORTCUTS_HORIZONTAL', 0);
@@ -747,7 +747,7 @@ 
 
     // To avoid that the api_get_access_url() function fails since global.inc.php also calls the main_api.lib.php
     if ($path_type == WEB_PATH) {
-        if (isset($_configuration['access_url']) &&  $_configuration['access_url'] != 1) {
+        if (isset($_configuration['access_url']) && $_configuration['access_url'] != 1) {
             //we look into the DB the function api_get_access_url
             $url_info = api_get_access_url($_configuration['access_url']);
             $root_web = $url_info['active'] == 1 ? $url_info['url'] : $_configuration['root_web'];
@@ -777,8 +777,8 @@ 
                     : 'localhost')));
                 if (isset($_SERVER['SERVER_PORT']) && !strpos($server_name, ':')
                     && (($server_protocol == 'http'
-                    && $_SERVER['SERVER_PORT'] != 80 ) || ($server_protocol == 'https' && $_SERVER['SERVER_PORT'] != 443 ))) {
-                    $server_name .= ":" . $_SERVER['SERVER_PORT'];
+                    && $_SERVER['SERVER_PORT'] != 80) || ($server_protocol == 'https' && $_SERVER['SERVER_PORT'] != 443))) {
+                    $server_name .= ":".$_SERVER['SERVER_PORT'];
                 }
                 $root_web = $server_protocol.'://'.$server_name.$root_rel;
                 $root_sys = str_replace('\\', '/', realpath(__DIR__.'/../../../')).'/';
@@ -952,7 +952,7 @@ 
                 $sys_course_code =
                     isset($_SESSION['_course']['sysCode'])  // User is inside a course?
                         ? $_SESSION['_course']['sysCode']   // Yes, then use course's directory name.
-                        : '{SYS_COURSE_CODE}';              // No, then use a fake code, it may be processed later.
+                        : '{SYS_COURSE_CODE}'; // No, then use a fake code, it may be processed later.
                 $path = $matches[1].'courses/'.$sys_course_code.'/document/'.str_replace('//', '/', $matches[3].'/'.$matches[2]);
             }
         }
@@ -996,15 +996,15 @@ 
 {
     global $_configuration;
     $web_root = api_get_path(WEB_PATH);
-    $ext = substr($web_path,strrpos($web_path,'.'));
+    $ext = substr($web_path, strrpos($web_path, '.'));
     if (isset($ext[2])) { // faster version of strlen to check if len>2
         // Check for CDN definitions
         if (!empty($_configuration['cdn_enable']) && !empty($ext)) {
             foreach ($_configuration['cdn'] as $host => $exts) {
-                if (in_array($ext,$exts)) {
+                if (in_array($ext, $exts)) {
                     //Use host as defined in $_configuration['cdn'], without
                     // trailing slash
-                    return str_replace($web_root,$host.'/',$web_path);
+                    return str_replace($web_root, $host.'/', $web_path);
                 }
             }
         }
@@ -1453,10 +1453,10 @@ 
 
     if (isset($user['email'])) {
         $result['mail'] = isset($user['email']) ? $user['email'] : null;
-        $result['email'] = isset($user['email'])? $user['email'] : null;
+        $result['email'] = isset($user['email']) ? $user['email'] : null;
     } else {
         $result['mail'] = isset($user['mail']) ? $user['mail'] : null;
-        $result['email'] = isset($user['mail'])? $user['mail'] : null;
+        $result['email'] = isset($user['mail']) ? $user['mail'] : null;
     }
     $user_id = intval($user['user_id']);
     // Maintain the user_id index for backwards compatibility
@@ -1932,7 +1932,7 @@ 
         foreach ($param_list1 as $key => $enreg) {
             list ($param_list1_keys[$key], $param_list1_vals[$key]) = explode('=', $enreg);
         }
-        $param_list1 = array ('keys' => $param_list1_keys, 'vals' => $param_list1_vals);
+        $param_list1 = array('keys' => $param_list1_keys, 'vals' => $param_list1_vals);
         foreach ($param_list2 as $enreg) {
             $enreg = explode('=', $enreg);
             $key = array_search($enreg[0], $param_list1['keys']);
@@ -1962,7 +1962,7 @@ 
         $length = 2;
     }
     $password = '';
-    for ($i = 0; $i < $length; $i ++) {
+    for ($i = 0; $i < $length; $i++) {
         $password .= $characters[rand() % strlen($characters)];
     }
     return $password;
@@ -1989,10 +1989,10 @@ 
     $digits = 0;
     $consequent_characters = 0;
     $previous_character_code = 0;
-    for ($i = 0; $i < $password_length; $i ++) {
+    for ($i = 0; $i < $password_length; $i++) {
         $current_character_code = api_ord(api_substr($password, $i, 1));
         if ($i && abs($current_character_code - $previous_character_code) <= 1) {
-            $consequent_characters ++;
+            $consequent_characters++;
             if ($consequent_characters == 3) {
                 return false;
             }
@@ -2000,9 +2000,9 @@ 
             $consequent_characters = 1;
         }
         if ($current_character_code >= 97 && $current_character_code <= 122) {
-            $letters ++;
+            $letters++;
         } elseif ($current_character_code >= 48 && $current_character_code <= 57) {
-            $digits ++;
+            $digits++;
         } else {
             return false;
         }
@@ -2198,7 +2198,7 @@ 
         if (empty($session_id)) { return null; }
     }
     $t = Database::get_main_table(TABLE_MAIN_SESSION);
-    $s = "SELECT name FROM $t WHERE id = ".(int)$session_id;
+    $s = "SELECT name FROM $t WHERE id = ".(int) $session_id;
     $r = Database::query($s);
     $c = Database::num_rows($r);
     if ($c > 0) {
@@ -2223,7 +2223,7 @@ 
         $sql = "SELECT * FROM $tbl_session WHERE id = $session_id";
         $result = Database::query($sql);
 
-        if (Database::num_rows($result)>0) {
+        if (Database::num_rows($result) > 0) {
             $data = Database::fetch_array($result, 'ASSOC');
         }
     }
@@ -2383,9 +2383,9 @@ 
  */
 function api_get_session_image($session_id, $status_id)
 {
-    $session_id = (int)$session_id;
+    $session_id = (int) $session_id;
     $session_img = '';
-    if ((int)$status_id != 5) { //check whether is not a student
+    if ((int) $status_id != 5) { //check whether is not a student
         if ($session_id > 0) {
             $session_img = "&nbsp;&nbsp;".Display::return_icon(
                 'star.png',
@@ -2500,7 +2500,7 @@ 
         $filename = api_get_path(SYS_PATH).api_get_home_path().'header_extra_content.txt';
         if (file_exists($filename)) {
             $value = file_get_contents($filename);
-            return $value ;
+            return $value;
         } else {
             return '';
         }
@@ -2509,7 +2509,7 @@ 
         $filename = api_get_path(SYS_PATH).api_get_home_path().'footer_extra_content.txt';
         if (file_exists($filename)) {
             $value = file_get_contents($filename);
-            return $value ;
+            return $value;
         } else {
             return '';
         }
@@ -2703,7 +2703,7 @@ 
     }
     $group_id   = api_get_group_id();
     $course_id  = api_get_course_int_id();
-    $course_code= api_get_course_id();
+    $course_code = api_get_course_id();
     $session_id = api_get_session_id();
 
     //Group (in course)
@@ -2711,7 +2711,7 @@ 
         $group_status = array();
         $is_subscribed = GroupManager::is_subscribed($user_id, $group_id);
         if ($is_subscribed) {
-            $group_status = array('id'=> $group_id , 'status' => 'student');
+            $group_status = array('id'=> $group_id, 'status' => 'student');
             $is_tutor = GroupManager::is_tutor_of_group($user_id, $group_id);
             if ($is_tutor) {
                 $group_status['status'] = 'tutor';
@@ -2745,7 +2745,7 @@ 
         }
         $status['session'] = $session_status;
 
-    } elseif($course_id) {
+    } elseif ($course_id) {
         //Course
         $course_status = array();
         if ($course_id) {
@@ -2753,7 +2753,7 @@ 
 
             if ($user_course_status) {
                 $course_status = array('id'=> $course_id);
-                switch($user_course_status) {
+                switch ($user_course_status) {
                     case 1;
                         $course_status['status'] = 'teacher';
                     break;
@@ -2783,7 +2783,7 @@ 
 function api_is_course_session_coach($user_id, $courseId, $session_id)
 {
     $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
-    $session_rel_course_rel_user_table  = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
+    $session_rel_course_rel_user_table = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
 
     $user_id = intval($user_id);
     $session_id = intval($session_id);
@@ -2857,7 +2857,7 @@ 
                 ORDER BY access_start_date, access_end_date, name";
         $result = Database::query($sql);
         if (!empty($sessionIsCoach)) {
-            $sessionIsCoach = array_merge($sessionIsCoach , Database::store_result($result));
+            $sessionIsCoach = array_merge($sessionIsCoach, Database::store_result($result));
         } else {
             $sessionIsCoach = Database::store_result($result);
         }
@@ -3034,7 +3034,7 @@ 
             return '';
         }
         $sourceurl = substr($_SERVER['REQUEST_URI'], 0, strpos($_SERVER['REQUEST_URI'], '?'));
-        $sourceurl = str_replace('newscorm/lp_header.php', 'newscorm/lp_controller.php?'.api_get_cidreq().'&action=view&lp_id='.intval($_GET['lp_id']).'&isStudentView='.($_SESSION['studentview']=='studentview' ? 'false' : 'true'), $sourceurl);
+        $sourceurl = str_replace('newscorm/lp_header.php', 'newscorm/lp_controller.php?'.api_get_cidreq().'&action=view&lp_id='.intval($_GET['lp_id']).'&isStudentView='.($_SESSION['studentview'] == 'studentview' ? 'false' : 'true'), $sourceurl);
         //showinframes doesn't handle student view anyway...
         //return '';
         $is_framed = true;
@@ -3433,7 +3433,7 @@ 
         }
         $content .= '<div class="well_login">';
         $content .= $form->return_form();
-        $content .='</div>';
+        $content .= '</div>';
         if (api_is_cas_activated()) {
             $content .= "</div>";
         }
@@ -3452,7 +3452,7 @@ 
         exit;
     }
 
-    if ($user_id !=0 && !api_is_anonymous()) {
+    if ($user_id != 0 && !api_is_anonymous()) {
         $tpl->display_one_col_template();
         exit;
     }
@@ -3483,7 +3483,7 @@ 
         }
         $msg .= '<div class="well">';
         $msg .= $form->return_form();
-        $msg .='</div>';
+        $msg .= '</div>';
         if (api_is_cas_activated()) {
             $msg .= "</div>";
         }
@@ -3519,7 +3519,7 @@ 
     list ($last_post_date, $last_post_time) = explode(' ', $last_post_datetime);
     list ($year, $month, $day) = explode('-', $last_post_date);
     list ($hour, $min, $sec) = explode(':', $last_post_time);
-    return mktime((int)$hour, (int)$min, (int)$sec, (int)$month, (int)$day, (int)$year);
+    return mktime((int) $hour, (int) $min, (int) $sec, (int) $month, (int) $day, (int) $year);
 }
 
 /**
@@ -3970,7 +3970,7 @@ 
                 c_id = $course_id AND
                 tool = '$tool'
                 $session_condition ";
-    $rs  = Database::query($sql);
+    $rs = Database::query($sql);
     $list = array();
     if (Database::num_rows($rs) > 0) {
         while ($row = Database::fetch_array($rs, 'ASSOC')) {
@@ -4050,7 +4050,7 @@ 
                 tool = '$tool' AND
                 ref = $ref
                 $sessionCondition";
-    $rs  = Database::query($sql);
+    $rs = Database::query($sql);
     $item_property_id = '';
     if (Database::num_rows($rs) > 0) {
         $row = Database::fetch_array($rs);
@@ -4108,7 +4108,7 @@ 
             WHERE item_property_id = $item_property_id AND course_id = $course_id
             ORDER BY lastedit_date DESC";
     $result = Database::query($sql);
-    $result = Database::store_result($result,'ASSOC');
+    $result = Database::store_result($result, 'ASSOC');
     return $result;
 }
 
@@ -4158,7 +4158,7 @@ 
     $rs  = Database::query($sql);
     $row = array();
     if (Database::num_rows($rs) > 0) {
-        $row = Database::fetch_array($rs,'ASSOC');
+        $row = Database::fetch_array($rs, 'ASSOC');
     }
 
     return $row;
@@ -4194,7 +4194,7 @@ 
     $languages  = $language_list['name'];
     $folder     = $language_list['folder'];
 
-    $ret .= '<select name="' . $name . '" id="language_chosen" class="selectpicker show-tick form-control">';
+    $ret .= '<select name="'.$name.'" id="language_chosen" class="selectpicker show-tick form-control">';
     foreach ($languages as $key => $value) {
         if ($folder[$key] == $default) {
             $selected = ' selected="selected"';
@@ -4247,8 +4247,8 @@ 
     //-->
     </script>';
     $html .= '<form id="lang_form" name="lang_form" method="post" action="'.api_get_self().'">';
-    $html .= '<label style="display: none;" for="language_list">' . get_lang('Language') . '</label>';
-    $html .=  '<select id="language_list" class="selectpicker show-tick form-control" name="language_list" >';
+    $html .= '<label style="display: none;" for="language_list">'.get_lang('Language').'</label>';
+    $html .= '<select id="language_list" class="selectpicker show-tick form-control" name="language_list" >';
 
     foreach ($original_languages as $key => $value) {
         if ($folder[$key] == $user_selected_language) {
@@ -4256,13 +4256,13 @@ 
         } else {
             $option_end = '>';
         }
-        $html .=  '<option value="'.api_get_self().'?language='.$folder[$key].'"'.$option_end;
+        $html .= '<option value="'.api_get_self().'?language='.$folder[$key].'"'.$option_end;
         //echo substr($value, 0, 16); // Cut string to keep 800x600 aspect.
-        $html .=  $value.'</option>';
+        $html .= $value.'</option>';
     }
-    $html .=  '</select>';
-    $html .=  '<noscript><input type="submit" name="user_select_language" value="'.get_lang('Ok').'" /></noscript>';
-    $html .=  '</form>';
+    $html .= '</select>';
+    $html .= '<noscript><input type="submit" name="user_select_language" value="'.get_lang('Ok').'" /></noscript>';
+    $html .= '</form>';
     return $html;
 }
 
@@ -4379,7 +4379,7 @@ 
     $rs = Database::query($sql);
     $language_info = array();
     if (Database::num_rows($rs)) {
-        $language_info = Database::fetch_array($rs,'ASSOC');
+        $language_info = Database::fetch_array($rs, 'ASSOC');
     }
     return $language_info;
 }
@@ -4457,7 +4457,7 @@ 
  * Note: Directory names (names of themes) in the file system should contain ASCII-characters only.
  */
 function api_get_themes() {
-    $cssdir = api_get_path(SYS_CSS_PATH) . 'themes/';
+    $cssdir = api_get_path(SYS_CSS_PATH).'themes/';
     $list_dir = array();
     $list_name = array();
 
@@ -4648,7 +4648,7 @@ 
     if (is_file($dirname) || is_link($dirname)) {
         $res = unlink($dirname);
         if ($res === false) {
-            error_log(__FILE__.' line '.__LINE__.': '.((bool)ini_get('track_errors') ? $php_errormsg : 'Error not recorded because track_errors is off in your php.ini'), 0);
+            error_log(__FILE__.' line '.__LINE__.': '.((bool) ini_get('track_errors') ? $php_errormsg : 'Error not recorded because track_errors is off in your php.ini'), 0);
         }
         return $res;
     }
@@ -4685,7 +4685,7 @@ 
     if ($delete_only_content_in_folder == false) {
         $res = rmdir($dirname);
         if ($res === false) {
-            error_log(__FILE__.' line '.__LINE__.': '.((bool)ini_get('track_errors') ? $php_errormsg : 'error not recorded because track_errors is off in your php.ini'), 0);
+            error_log(__FILE__.' line '.__LINE__.': '.((bool) ini_get('track_errors') ? $php_errormsg : 'error not recorded because track_errors is off in your php.ini'), 0);
         }
     }
     return $res;
@@ -4763,7 +4763,7 @@ 
 
     $course_id = $course_info['real_id'];
 
-    $folders = explode(DIRECTORY_SEPARATOR,str_replace($base_path_document.DIRECTORY_SEPARATOR,'',$pathname));
+    $folders = explode(DIRECTORY_SEPARATOR, str_replace($base_path_document.DIRECTORY_SEPARATOR, '', $pathname));
 
     $new_pathname = $base_path_document;
     $path = '';
@@ -4781,7 +4781,7 @@ 
                         path = '$path' AND
                         filetype = 'folder' AND
                         session_id = '$session_id'";
-            $rs1  = Database::query($sql);
+            $rs1 = Database::query($sql);
             $num_rows = Database::num_rows($rs1);
 
             if ($num_rows == 0) {
@@ -4938,7 +4938,7 @@ 
             foreach (array('key', 'value1', 'value2', 'value3') as $var) {
                 $$var = isset($match[++$i]) ? $match[$i] : '';
             }
-            $value = stripslashes(substr($value1, 1, -1)) . stripslashes(substr($value2, 1, -1)) . $value3;
+            $value = stripslashes(substr($value1, 1, -1)).stripslashes(substr($value2, 1, -1)).$value3;
 
             // Parse array syntax.
             $keys = preg_split('/\]?\[/', rtrim($key, ']'));
@@ -4978,7 +4978,7 @@ 
  */
 function api_get_version() {
     global $_configuration;
-    return (string)$_configuration['system_version'];
+    return (string) $_configuration['system_version'];
 }
 
 /**
@@ -5104,7 +5104,7 @@ 
     $t_settings = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
     $var = Database::escape_string($var);
     $value = Database::escape_string($value);
-    $access_url = (int)$access_url;
+    $access_url = (int) $access_url;
     if (empty($access_url)) { $access_url = 1; }
     $select = "SELECT id FROM $t_settings WHERE variable = '$var' ";
     if (!empty($subvar)) {
@@ -5126,7 +5126,7 @@ 
         // Found item for this access_url.
         $row = Database::fetch_array($res);
         $sql = "UPDATE $t_settings SET selected_value = '$value'
-                WHERE id = ".$row['id'] ;
+                WHERE id = ".$row['id'];
         Database::query($sql);
     } else {
         // Item not found for this access_url, we have to check if it exist with access_url = 1
@@ -5147,11 +5147,11 @@ 
                 $row = Database::fetch_array($res);
                 $insert = "INSERT INTO $t_settings (variable, subkey, type,category, selected_value, title, comment, scope, subkeytext, access_url)
                         VALUES
-                        ('".$row['variable']."',".(!empty($row['subkey']) ? "'".$row['subkey']."'" : "NULL")."," .
-                        "'".$row['type']."','".$row['category']."'," .
-                        "'$value','".$row['title']."'," .
-                        "".(!empty($row['comment']) ? "'".$row['comment']."'" : "NULL").",".(!empty($row['scope']) ? "'".$row['scope']."'" : "NULL")."," .
-                        "".(!empty($row['subkeytext'])?"'".$row['subkeytext']."'":"NULL").",$access_url)";
+                        ('".$row['variable']."',".(!empty($row['subkey']) ? "'".$row['subkey']."'" : "NULL").",".
+                        "'".$row['type']."','".$row['category']."',".
+                        "'$value','".$row['title']."',".
+                        "".(!empty($row['comment']) ? "'".$row['comment']."'" : "NULL").",".(!empty($row['scope']) ? "'".$row['scope']."'" : "NULL").",".
+                        "".(!empty($row['subkeytext']) ? "'".$row['subkeytext']."'" : "NULL").",$access_url)";
                 Database::query($insert);
             } else { // Such a setting does not exist.
                 error_log(__FILE__.':'.__LINE__.': Attempting to update setting '.$var.' ('.$subvar.') which does not exist at all', 0);
@@ -5171,16 +5171,16 @@ 
                 if ($row['access_url_changeable'] == 1) {
                     $insert = "INSERT INTO $t_settings (variable,subkey, type,category, selected_value,title, comment,scope, subkeytext,access_url, access_url_changeable) VALUES
                             ('".$row['variable']."',".
-                            (!empty($row['subkey']) ? "'".$row['subkey']."'" : "NULL")."," .
-                            "'".$row['type']."','".$row['category']."'," .
-                            "'$value','".$row['title']."'," .
+                            (!empty($row['subkey']) ? "'".$row['subkey']."'" : "NULL").",".
+                            "'".$row['type']."','".$row['category']."',".
+                            "'$value','".$row['title']."',".
                             "".(!empty($row['comment']) ? "'".$row['comment']."'" : "NULL").",".
-                            (!empty($row['scope']) ? "'".$row['scope']."'" : "NULL")."," .
+                            (!empty($row['scope']) ? "'".$row['scope']."'" : "NULL").",".
                             "".(!empty($row['subkeytext']) ? "'".$row['subkeytext']."'" : "NULL").",$access_url,".$row['access_url_changeable'].")";
                     Database::query($insert);
                 }
             } else { // Such a setting does not exist.
-                error_log(__FILE__.':'.__LINE__.': Attempting to update setting '.$var.' ('.$subvar.') which does not exist at all. The access_url is: '.$access_url.' ',0);
+                error_log(__FILE__.':'.__LINE__.': Attempting to update setting '.$var.' ('.$subvar.') which does not exist at all. The access_url is: '.$access_url.' ', 0);
             }
         }
     }
@@ -5206,10 +5206,10 @@ 
         $value = Database::escape_string($value);
         $sql = "UPDATE $t_s SET selected_value = '$value'
                 WHERE category = '$category' AND access_url = $access_url";
-        if (is_array($fieldtype) && count($fieldtype)>0) {
+        if (is_array($fieldtype) && count($fieldtype) > 0) {
             $sql .= " AND ( ";
             $i = 0;
-            foreach ($fieldtype as $type){
+            foreach ($fieldtype as $type) {
                 if ($i > 0) {
                     $sql .= ' OR ';
                 }
@@ -5224,10 +5224,10 @@ 
     } else {
         $sql = "UPDATE $t_s SET selected_value = NULL
                 WHERE category = '$category' AND access_url = $access_url";
-        if (is_array($fieldtype) && count($fieldtype)>0) {
+        if (is_array($fieldtype) && count($fieldtype) > 0) {
             $sql .= " AND ( ";
             $i = 0;
-            foreach ($fieldtype as $type){
+            foreach ($fieldtype as $type) {
                 if ($i > 0) {
                     $sql .= ' OR ';
                 }
@@ -5372,7 +5372,7 @@ 
 function & api_get_settings_categories($exceptions = array(), $access_url = 1) {
     $access_url = (int) $access_url;
     $t_cs = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
-    $list = "'".implode("','",$exceptions)."'";
+    $list = "'".implode("','", $exceptions)."'";
     $sql = "SELECT DISTINCT category FROM $t_cs WHERE category is NOT NULL ";
     if ($list != "'',''" && $list != "''" && !empty($list)) {
         $sql .= " AND category NOT IN ($list) ";
@@ -5468,12 +5468,12 @@ 
 
     // Item not found for this access_url, we have to check if the whole thing is missing
     // (in which case we ignore the insert) or if there *is* a record but just for access_url = 1
-    $insert = "INSERT INTO $t_settings " .
-                "(variable,selected_value," .
-                "type,category," .
-                "subkey,title," .
-                "comment,scope," .
-                "subkeytext,access_url,access_url_changeable)" .
+    $insert = "INSERT INTO $t_settings ".
+                "(variable,selected_value,".
+                "type,category,".
+                "subkey,title,".
+                "comment,scope,".
+                "subkeytext,access_url,access_url_changeable)".
                 " VALUES ('$var','$val',";
     if (isset($type)) {
         $type = Database::escape_string($type);
@@ -5639,7 +5639,7 @@ 
             $result = Database::query($sql);
 
             //if ($row = Database::fetch_array($result)) {
-            if (Database::num_rows($result) > 0 ) {
+            if (Database::num_rows($result) > 0) {
                 $is_courseMember = true;
                 $is_courseTutor = true;
                 $is_courseCoach = true;
@@ -5860,8 +5860,8 @@ 
 {
     $tbl_rel_course_user = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
     if (!empty($user_id) && !empty($courseId)) {
-        $user_id        = intval($user_id);
-        $courseId    = intval($courseId);
+        $user_id = intval($user_id);
+        $courseId = intval($courseId);
         $sql = 'SELECT status
                 FROM '.$tbl_rel_course_user.'
                 WHERE user_id='.$user_id.' AND c_id = '.$courseId;
@@ -5967,7 +5967,7 @@ 
     } else {
         return false;
     }
-    return strtolower(substr((string)$os, 0, 3 )) == 'win';
+    return strtolower(substr((string) $os, 0, 3)) == 'win';
 }
 
 /**
@@ -6492,7 +6492,7 @@ 
 function api_get_jquery_ui_js($include_jqgrid = false) {
     $libraries = array();
     if ($include_jqgrid) {
-       $libraries[]='jqgrid';
+       $libraries[] = 'jqgrid';
     }
     return api_get_jquery_libraries_js($libraries);
 }
@@ -6516,12 +6516,12 @@ 
 
     //jqgrid js and css
     if (in_array('jqgrid', $libraries)) {
-        $languaje   = 'en';
+        $languaje = 'en';
         $platform_isocode = strtolower(api_get_language_isocode());
 
         //languages supported by jqgrid see files in main/inc/lib/javascript/jqgrid/js/i18n
         $jqgrid_langs = array(
-            'bg', 'bg1251', 'cat','cn','cs','da','de','el','en','es','fa','fi','fr','gl','he','hu','is','it','ja','nl','no','pl','pt-br','pt','ro','ru','sk','sr','sv','tr','ua'
+            'bg', 'bg1251', 'cat', 'cn', 'cs', 'da', 'de', 'el', 'en', 'es', 'fa', 'fi', 'fr', 'gl', 'he', 'hu', 'is', 'it', 'ja', 'nl', 'no', 'pl', 'pt-br', 'pt', 'ro', 'ru', 'sk', 'sr', 'sv', 'tr', 'ua'
         );
 
         if (in_array($platform_isocode, $jqgrid_langs)) {
@@ -6552,7 +6552,7 @@ 
 
     // jquery datepicker
     if (in_array('datepicker', $libraries)) {
-        $languaje   = 'en-GB';
+        $languaje = 'en-GB';
         $platform_isocode = strtolower(api_get_language_isocode());
 
         // languages supported by jqgrid see files in main/inc/lib/javascript/jqgrid/js/i18n
@@ -6654,7 +6654,7 @@ 
         $clean_url = str_replace('/', '-', $clean_url);
         $clean_url .= '/';
 
-        $home = 'app/home/' . $clean_url;
+        $home = 'app/home/'.$clean_url;
     }
 
     return $home;
@@ -6714,7 +6714,7 @@ 
  * @return void
  */
 function api_check_php_version($my_inc_path = null) {
-    if (!function_exists('version_compare') || version_compare( phpversion(), REQUIRED_PHP_VERSION, '<')) {
+    if (!function_exists('version_compare') || version_compare(phpversion(), REQUIRED_PHP_VERSION, '<')) {
         $global_error_code = 1;
         // Incorrect PHP version
         $global_page = $my_inc_path.'global_error_message.inc.php';
@@ -6730,7 +6730,7 @@ 
  */
 function api_check_archive_dir() {
     if (is_dir(api_get_path(SYS_ARCHIVE_PATH)) && !is_writable(api_get_path(SYS_ARCHIVE_PATH))) {
-        $message = Display::return_message(get_lang('ArchivesDirectoryNotWriteableContactAdmin'),'warning');
+        $message = Display::return_message(get_lang('ArchivesDirectoryNotWriteableContactAdmin'), 'warning');
         api_not_allowed(true, $message);
     }
 }
@@ -6795,7 +6795,7 @@ 
  * @author Jorge Frisancho Jibaja <jrfdeft@gmail.com>, USIL - Some changes to allow the use of real IP using reverse proxy
  * @version CEV CHANGE 24APR2012
  */
-function api_get_real_ip(){
+function api_get_real_ip() {
     // Guess the IP if behind a reverse proxy
     global $debug;
     $ip = trim($_SERVER['REMOTE_ADDR']);
@@ -6820,23 +6820,23 @@ 
  * @author Yannick Warnier for improvements and managment of multiple ranges
  * @todo check for IPv6 support
  */
-function api_check_ip_in_range($ip,$range)
+function api_check_ip_in_range($ip, $range)
 {
     if (empty($ip) or empty($range)) {
         return false;
     }
-    $ip_ip = ip2long ($ip);
+    $ip_ip = ip2long($ip);
     // divide range param into array of elements
-    if (strpos($range,',')!==false) {
-        $ranges = explode(',',$range);
+    if (strpos($range, ',') !== false) {
+        $ranges = explode(',', $range);
     } else {
         $ranges = array($range);
     }
     foreach ($ranges as $range) {
         $range = trim($range);
         if (empty($range)) { continue; }
-        if (strpos($range,'/')===false) {
-            if (strcmp($ip,$range)===0) {
+        if (strpos($range, '/') === false) {
+            if (strcmp($ip, $range) === 0) {
                 return true; // there is a direct IP match, return OK
             }
             continue; //otherwise, get to the next range
@@ -6844,7 +6844,7 @@ 
         // the range contains a "/", so analyse completely
         list ($net, $mask) = explode("/", $range);
 
-        $ip_net = ip2long ($net);
+        $ip_net = ip2long($net);
         // mask binary magic
         $ip_mask = ~((1 << (32 - $mask)) - 1);
 
@@ -7205,14 +7205,14 @@ 
  * @assert (0) === true
  * @assert ('1G') === true
  */
-function api_set_memory_limit($mem){
+function api_set_memory_limit($mem) {
     //if ini_set() not available, this function is useless
     if (!function_exists('ini_set') || is_null($mem) || $mem == -1) {
         return false;
     }
 
     $memory_limit = ini_get('memory_limit');
-    if (api_get_bytes_memory_limit($mem) > api_get_bytes_memory_limit($memory_limit)){
+    if (api_get_bytes_memory_limit($mem) > api_get_bytes_memory_limit($memory_limit)) {
         ini_set('memory_limit', $mem);
         return true;
     }
@@ -7229,21 +7229,21 @@ 
  * @assert ('1m')  === 1048576
  * @assert ('100k') === 102400
  */
-function api_get_bytes_memory_limit($mem){
-    $size = strtolower(substr($mem,-1));
+function api_get_bytes_memory_limit($mem) {
+    $size = strtolower(substr($mem, -1));
 
     switch ($size) {
         case 't':
-            $mem = intval(substr($mem,-1))*1024*1024*1024*1024;
+            $mem = intval(substr($mem, -1)) * 1024 * 1024 * 1024 * 1024;
             break;
         case 'g':
-            $mem = intval(substr($mem,0,-1))*1024*1024*1024;
+            $mem = intval(substr($mem, 0, -1)) * 1024 * 1024 * 1024;
             break;
         case 'm':
-            $mem = intval(substr($mem,0,-1))*1024*1024;
+            $mem = intval(substr($mem, 0, -1)) * 1024 * 1024;
             break;
         case 'k':
-            $mem = intval(substr($mem,0,-1))*1024;
+            $mem = intval(substr($mem, 0, -1)) * 1024;
             break;
         default:
             // we assume it's integer only
@@ -7298,7 +7298,7 @@ 
         get_lang('PasswordVeryStrong'),
     );
     $js = api_get_js('strength/strength.js');
-    $js .=  "<script>
+    $js .= "<script>
 
     var verdicts = ['".implode("','", $verdicts)."'];
     var errorMessages = {
@@ -7354,7 +7354,7 @@ 
         return false;
     }
     $minutesToBlock = api_get_setting('captcha_time_to_block');
-    $time = time() + $minutesToBlock*60;
+    $time = time() + $minutesToBlock * 60;
     UserManager::update_extra_field_value(
         $userInfo['user_id'],
         'captcha_blocked_until_date',
@@ -7427,7 +7427,7 @@ 
         $out_res = str_replace('"', "''", $out_res);
     }
     // avoid text stuck together when tags are removed, adding a space after >
-    $out_res = str_replace (">", "> ", $out_res);
+    $out_res = str_replace(">", "> ", $out_res);
     $out_res = strip_tags($out_res);
 
     return $out_res;
@@ -7537,12 +7537,12 @@ 
 {
     // Clean query
     $bt = debug_backtrace();
-    $caller = array_shift($bt);;
+    $caller = array_shift($bt); ;
     if ($dump == 1) {
         $string = print_r($string, 1);
     } else {
         $string = str_replace(array("\r", "\n", "\t", "\10"), '', $string);
-        $string = str_replace('    ',' ', $string);
+        $string = str_replace('    ', ' ', $string);
     }
 
     error_log("-------------------------------------");
@@ -7652,7 +7652,7 @@ 
         $body = get_lang('PortalName').': '.api_get_path(WEB_PATH)." \n ";
         $body .= get_lang('PortalLimitType').': '.$limitName." \n ";
         if (isset($hostingParams[$limitName])) {
-            $body .= get_lang('Value') . ': ' . $hostingParams[$limitName];
+            $body .= get_lang('Value').': '.$hostingParams[$limitName];
         }
         api_mail_html(null, $email, $subject, $body);
     }
@@ -7780,7 +7780,7 @@ 
  */
 function api_set_site_use_cookie_warning_cookie()
 {
-    setcookie("ChamiloUsesCookies", "ok", time()+31556926);
+    setcookie("ChamiloUsesCookies", "ok", time() + 31556926);
 }
 
 /**
@@ -7828,10 +7828,10 @@ 
         return false;
     }
 
-    $fullPath = $parentDirectory . api_replace_dangerous_char($name);
+    $fullPath = $parentDirectory.api_replace_dangerous_char($name);
 
     if (mkdir($fullPath, api_get_permissions_for_new_directories(), true)) {
-        $fp = fopen($fullPath . '/index.html', 'w');
+        $fp = fopen($fullPath.'/index.html', 'w');
 
         if ($fp) {
             if (fwrite($fp, '<html><head></head><body></body></html>')) {
@@ -7896,7 +7896,7 @@ 
             $mail->SMTPSecure = $platform_email['SMTP_SECURE'];
         }
     }
-    $mail->SMTPDebug = isset($platform_email['SMTP_DEBUG'])?$platform_email['SMTP_DEBUG']:0;
+    $mail->SMTPDebug = isset($platform_email['SMTP_DEBUG']) ? $platform_email['SMTP_DEBUG'] : 0;
 
     // 5 = low, 1 = high
     $mail->Priority = 3;
@@ -8048,11 +8048,11 @@ 
         error_log('ERROR: mail not sent to '.$recipient_name.' ('.$recipient_email.') because of '.$mail->ErrorInfo.'<br />');
         if ($mail->SMTPDebug) {
             error_log(
-                "Connection details :: " .
-                "Protocol: " . $mail->Mailer . ' :: ' .
-                "Host/Port: " . $mail->Host . ':' . $mail->Port . ' :: ' .
-                "Authent/Open: " . ($mail->SMTPAuth?'Authent':'Open') . ' :: ' .
-                ($mail->SMTPAuth?"  User/Pass: " . $mail->Username . ':' . $mail->Password:'')
+                "Connection details :: ".
+                "Protocol: ".$mail->Mailer.' :: '.
+                "Host/Port: ".$mail->Host.':'.$mail->Port.' :: '.
+                "Authent/Open: ".($mail->SMTPAuth ? 'Authent' : 'Open').' :: '.
+                ($mail->SMTPAuth ? "  User/Pass: ".$mail->Username.':'.$mail->Password : '')
             );
         }
         return 0;
@@ -8100,13 +8100,13 @@ 
  * @param int $key key to find to compare
  *
  */
-function api_unique_multidim_array($array, $key){
+function api_unique_multidim_array($array, $key) {
     $temp_array = array();
     $i = 0;
     $key_array = array();
 
-    foreach($array as $val){
-        if(!in_array($val[$key],$key_array)){
+    foreach ($array as $val) {
+        if (!in_array($val[$key], $key_array)) {
             $key_array[$i] = $val[$key];
             $temp_array[$i] = $val;
         }