note 51911 added to ref.datetime

This is my function that converts dates to string format 'yyyymmdd': <?php function date_to_text($str_input) { if (!is_string($str_input)) { return false; } else { $str_output = date("Ymd", strtotime($str_input)); return $str_output; } } ?> Anyone can improve it checking if $str_input it's a Gregorian valid date? ---- Manual Page -- http://www.php.net/manual/en/ref.datetime.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+51911 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+51911&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+51911&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+51911&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+51911&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+51911&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+51911&report=yes Search -- http://master.php.net/manage/user-notes.php