Re: Checking input format

on 29/04/03 10:35 PM, Shaun (shaun@mania.plus.com) wrote: > How can i check that a user has input the correct format for a date (i.e. > yyyy-mm-dd) and that that date has not past? Try http://www.php.net/manual/en/function.checkdate.php Or, to get more detailed about it, here's some EXAMPLES of wht you might want to do -- even though it's not efficient code. <? $date = "2002-04-19"; $validFormat = 1; // split it into chunks based on '-' being the separator list($y,$m,$d) = explode('-',$date); // make sure all are numeric if(!is_numeric($y)) { $validFormat = 0; } if(!is_numeric($m)) { $validFormat = 0; } if(!is_numeric($d)) { $validFormat = 0; } // make sure lengths are right if(!strlen($y) != 4) { $validFormat = 0; } if(!strlen($m) != 2) { $validFormat = 0; } if(!strlen($d) != 2) { $validFormat = 0; } // maybe make sure they are not greater than the max req'd if($m > 12) { $validFormat = 0; } if($d > 31) { $validFormat = 0; } // convert the $date into a time stamp and compare with today $dateStamp = strtotime($date); if($dateStamp > time()) { // date is in future } ?> Really depends what you're aiming for :) Justin