note 89664 added to function.checkdate

I think there is an error in the function from bmauser below. $regexp is overwritten. Here's another version which also accepts missing zeros and two digits year notation. <?php function is_valid_date($value, $format = 'dd.mm.yyyy'){ if(strlen($value) >= 6 && strlen($format) == 10){ // find separator. Remove all other characters from $format $separator_only = str_replace(array('m','d','y'),'', $format); $separator = $separator_only[0]; // separator is first character if($separator && strlen($separator_only) == 2){ // make regex $regexp = str_replace('mm', '(0?[1-9]|1[0-2])', $format); $regexp = str_replace('dd', '(0?[1-9]|[1-2][0-9]|3[0-1])', $regexp); $regexp = str_replace('yyyy', '(19|20)?[0-9][0-9]', $regexp); $regexp = str_replace($separator, "\\" . $separator, $regexp); if($regexp != $value && preg_match('/'.$regexp.'\z/', $value)){ // check date $arr=explode($separator,$value); $day=$arr[0]; $month=$arr[1]; $year=$arr[2]; if(@checkdate($month, $day, $year)) return true; } } } return false; } ?> ---- Server IP: 62.73.196.231 Probable Submitter: 84.48.229.171 ---- Manual Page -- http://www.php.net/manual/en/function.checkdate.php Edit -- https://master.php.net/note/edit/89664 Del: integrated -- https://master.php.net/note/delete/89664/integrated Del: useless -- https://master.php.net/note/delete/89664/useless Del: bad code -- https://master.php.net/note/delete/89664/bad+code Del: spam -- https://master.php.net/note/delete/89664/spam Del: non-english -- https://master.php.net/note/delete/89664/non-english Del: in docs -- https://master.php.net/note/delete/89664/in+docs Del: other reasons-- https://master.php.net/note/delete/89664 Reject -- https://master.php.net/note/reject/89664 Search -- https://master.php.net/manage/user-notes.php