50     private static $jalali   = true; //Use Jalali Date, If set to false, falls back to gregorian  variable in jDateTime
69     public function __construct($convert = null, $jalali = null, $timezone = null)  argument
71         if ( $jalali   !== null ) self::$jalali   = (bool) $jalali;
93 …public static function date($format, $stamp = false, $convert = null, $jalali = null, $timezone = …  argument
101         if ( (self::$jalali === false && $jalali === null) || $jalali === false ) {
237                 ( $jalali === false || $jalali === null && self::$jalali === false ))
284 …public static function strftime($format, $stamp = false, $convert = null, $jalali = null, $timezon…  argument
310         return self::date($format, $stamp, $convert, $jalali, $timezone);
338 …public static function mktime($hour, $minute, $second, $month, $day, $year, $jalali = null, $timez…  argument
346         if ( $jalali === true || ($jalali === null && self::$jalali === true) ) {
386     public static function checkdate($month, $day, $year, $jalali = null)  argument
394         if ( $jalali === true || ($jalali === null && self::$jalali === true) )