how to validate date with PHP

Question

If a date is submitted by form in following format, $month=2, $day=31, $year= 2010. How can i verify using PHP date function if it is valid date or not? Thanks.

Answer 1

http://php.net/manual/en/function.checkdate.php

The checkdate function is the first result in google from the search "php validate date"

In your case, the usage would be:

checkdate($month, $day, $year);

Answer 2

<?php
function validateDate($date, $format = 'Y-m-d H:i:s'){
    $d = DateTime::createFromFormat($format, $date);
    return $d && $d->format($format) == $date;
}
?>

var_dump(validateDate('2012-02-28 12:12:12')); # true
var_dump(validateDate('2012-02-30 12:12:12')); # false
var_dump(validateDate('2012-02-28', 'Y-m-d')); # true
var_dump(validateDate('28/02/2012', 'd/m/Y')); # true
var_dump(validateDate('30/02/2012', 'd/m/Y')); # false

^{function was copied from this answer or php.net}

Answer 3

Try checkdate() http://php.net/manual/en/function.checkdate.php

checkdate($month, $day, $year);

returns true if date is valid / false otherwise

Answer 4

bool checkdate ( int $month , int $day , int $year )