Online PHP editor | output for vFvXk

<?php $a = new StdClass(); $b = new StdClass(); $array1 = array($a, $a, $b); $array2 = array($a, $b, $b); countHashes = function($array) { $count = array(); foreach ($array as $val) { $hash = spl_object_hash($val); if (! isset($count[$hash])) { $count[$hash] = 0; } $count[$hash]++; return $count; } $count1 = countHashes($array1); $count2 = countHashes($array2); var_dump($count1); var_dump($count2);