Validate that input is in this time format - “HH:MM” [closed]

Answer 1

here is a code that check if the string is an hour between 00:00 and 23:59

$checked = false;
    if (preg_match('/^\d{2}:\d{2}$/', $str)) {
        if (preg_match("/(2[0-3]|[0][0-9]|1[0-9]):([0-5][0-9])/", $str)) {
            $checked = true;
        }
    }
    var_dump($checked );die;