note 107569 added to function.checkdate

Here's a function that further builds on top of what was posted earlier (bmauser and ystein M). It takes date and format (D, DD, M, MM, YY, YYYY) and any seperator. Format example: YYYY-MM-DD. The previous functions didn't take dashes and required specific order. <?php function valid_date($date, $format = 'YYYY-MM-DD'){ if(strlen($date) >= 8 && strlen($date) <= 10){ $separator_only = str_replace(array('M','D','Y'),'', $format); $separator = $separator_only[0]; if($separator){ $regexp = str_replace($separator, "\\" . $separator, $format); $regexp = str_replace('MM', '(0[1-9]|1[0-2])', $regexp); $regexp = str_replace('M', '(0?[1-9]|1[0-2])', $regexp); $regexp = str_replace('DD', '(0[1-9]|[1-2][0-9]|3[0-1])', $regexp); $regexp = str_replace('D', '(0?[1-9]|[1-2][0-9]|3[0-1])', $regexp); $regexp = str_replace('YYYY', '\d{4}', $regexp); $regexp = str_replace('YY', '\d{2}', $regexp); if($regexp != $date && preg_match('/'.$regexp.'$/', $date)){ foreach (array_combine(explode($separator,$format), explode($separator,$date)) as $key=>$value) { if ($key == 'YY') $year = '20'.$value; if ($key == 'YYYY') $year = $value; if ($key[0] == 'M') $month = $value; if ($key[0] == 'D') $day = $value; } if (checkdate($month,$day,$year)) return true; } } } return false; } ?> ---- Server IP: 69.147.83.197 Probable Submitter: 67.190.172.16 ---- Manual Page -- http://www.php.net/manual/en/function.checkdate.php Edit -- https://master.php.net/note/edit/107569 Del: integrated -- https://master.php.net/note/delete/107569/integrated Del: useless -- https://master.php.net/note/delete/107569/useless Del: bad code -- https://master.php.net/note/delete/107569/bad+code Del: spam -- https://master.php.net/note/delete/107569/spam Del: non-english -- https://master.php.net/note/delete/107569/non-english Del: in docs -- https://master.php.net/note/delete/107569/in+docs Del: other reasons-- https://master.php.net/note/delete/107569 Reject -- https://master.php.net/note/reject/107569 Search -- https://master.php.net/manage/user-notes.php