note 87676 added to function.checkdate

Here is function that checks date if matches given format and validity of the date. <?php /** * Checks date if matches given format and validity of the date. * Examples: * <code> * is_date('22.22.2222', 'mm.dd.yyyy'); // returns false * is_date('11/30/2008', 'mm/dd/yyyy'); // returns true * is_date('30-01-2008', 'dd-mm-yyyy'); // returns true * is_date('2008 01 30', 'yyyy mm dd'); // returns true * </code> * @param string $value the variable being evaluated. * @param string $format Format of the date. Any combination of <i>mm<i>, <i>dd<i>, <i>yyyy<i> * with single character separator between. */ function is_date($value, $format = 'mm.dd.yyyy'){ if(strlen($value) == 10 && 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][0-9]', $value); $regexp = str_replace('dd', '[0-3][0-9]', $value); $regexp = str_replace('yyyy', '[0-9]{4}', $value); $regexp = str_replace($separator, "\\" . $separator, $value); if($regexp != $value && preg_match('/'.$regexp.'/', $value)){ // check date $day = substr($value,strpos($format, 'd'),2); $month = substr($value,strpos($format, 'm'),2); $year = substr($value,strpos($format, 'y'),4); if(@checkdate($month, $day, $year)) return true; } } } return false; } ?> ---- Server IP: 69.147.83.197 Probable Submitter: 161.53.12.135 ---- Manual Page -- http://www.php.net/manual/en/function.checkdate.php Edit -- https://master.php.net/note/edit/87676 Del: integrated -- https://master.php.net/note/delete/87676/integrated Del: useless -- https://master.php.net/note/delete/87676/useless Del: bad code -- https://master.php.net/note/delete/87676/bad+code Del: spam -- https://master.php.net/note/delete/87676/spam Del: non-english -- https://master.php.net/note/delete/87676/non-english Del: in docs -- https://master.php.net/note/delete/87676/in+docs Del: other reasons-- https://master.php.net/note/delete/87676 Reject -- https://master.php.net/note/reject/87676 Search -- https://master.php.net/manage/user-notes.php