/**
  * Formats a timestamp as desired based on a language string and the user's time zone
  *
  * @param   int     $timestamp  The timestamp to format
  *
  * @return  string              The formatted date
  */
 function format_date($timestamp)
 {
     //handle special cases
     if ($timestamp === '0') {
         //the zero timestamp
         return get_string('na', $this->languagefile);
     } else {
         if (empty($timestamp)) {
             //NULL column
             return '';
         }
     }
     //determine the format
     $format = get_string('date_format', $this->languagefile);
     //figure out the correct timezone
     $timezone = 99;
     if ($user_record = get_record('user', 'id', $this->userid)) {
         //determine the user's timezone
         $timezone = php_report::get_user_timezone($user_record, $user_record->timezone);
     }
     //perform the formatting
     return userdate($timestamp, $format, $timezone, false);
 }
 /**
  * from /lib/moodlelib.php::userdate()
  * Returns a formatted string that represents a date in user time
  *
  * @param int    $date timestamp in GMT
  * @param string $format strftime format
  * @param bool   $fixday If true then the leading zero from %d is removed.
  *               If false (default) then the leading zero is mantained.
  * @return string
  */
 function userdate($date, $format = '', $fixday = false)
 {
     // TBD: false???
     $timezone = 99;
     if ($user_record = get_record('user', 'id', $this->userid)) {
         //determine the user's timezone
         $timezone = php_report::get_user_timezone($user_record, $user_record->timezone);
     }
     //perform the formatting
     return userdate($date, $format, $timezone, $fixday);
 }
 /**
  * Formats a timestamp as desired based on a language string and the user's time zone
  *
  * @param   int     $timestamp  The timestamp to format
  * 
  * @return  string              The formatted date
  */
 function format_date($timestamp)
 {
     //determine the format
     $format = get_string('date_format', 'rlreport_course_completion_by_cluster');
     //figure out the correct timezone
     $timezone = 99;
     if ($user_record = get_record('user', 'id', $this->userid)) {
         //determine the user's timezone
         $timezone = php_report::get_user_timezone($user_record, $user_record->timezone);
     }
     //perform the formatting
     return userdate($timestamp, $format, $timezone, false);
 }