- var_dump: documentation ( source)
- array_diff: documentation ( source)
<?php
$itemList = array(
array(0),
array(1),
array(0,1),
array(0,1,2,3,4),
array(new stdClass),
array(new stdClass, new stdClass),
array(new stdClass, new stdClass, new stdClass)
);
foreach ($itemList as $item) {
var_dump(array_diff($item, $item));
}