Using filter_var() to verify date?

Question

I\'m obviously not using filter_var() correctly. I need to check that the user has entered a valid date, in the form \"dd/mm/yyyy\".

This simply returns whatever I p

Answer 1

Why using a heavy RegEx, while there is a native DateTime PHP-class?

$value = 'badbadbad';

try {
    $datetime = new \DateTime($value);

    $value = $datetime->format('Y-m-d');
} catch(\Exception $e) {
    // Invalid date
}

Always returns the format you were expecting, if a valid datetime string was inserted.