- var_dump: documentation ( source)
<?php
/**
* Test Skript for the bug at: http://de.php.net/manual/en/datetime.sub.php#101175
* Versions affected 5.3.0 - 5.3.2
*/
$current = '20130117010101';
$dateString = '20130115000000';
$preserveAfterDate = new DateTime($current);
$preserveAfterDate->setTime(0,0,0);
// sub() get called 2 times, first here
$preserveAfterDate->sub(new DateInterval('P5D'));
$fileDate = new DateTime($dateString);
var_dump($fileDate->format('Y-m-d H:i:s'));
var_dump($preserveAfterDate->format('Y-m-d H:i:s'));
// sub gets called again from diff() ?!?!?!
$difference = $preserveAfterDate->diff($fileDate);
var_dump($preserveAfterDate->format('Y-m-d H:i:s'));
var_dump($difference->format('%r%a'));