Description:
------------
---
From manual page: http://www.php.net/dateinterval.construct#refsect1-dateinterval.construct-parameters
---

DateInterval::__construct() throws \Exception when an invalid format is supplied, but this exception is not documented anywhere in the PHP manual.


Test script:
---------------
<?php

try {
    $di = new DateInterval('PTS'); // Or any other invalid format
} catch (Exception $e) {
    echo $e->getMessage();
}

/*
 * Prints:
 * DateInterval::__construct() [<a  href='dateinterval.--construct'>dateinterval.--construct</a>]:  Unknown or bad format (PTS)
 */