3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function countHashes ($array) { $count = array(); foreach ($array as $val) { $hash = spl_object_hash($val); if (! isset($count[$hash])) { $count[$hash] = 0; } $count[$hash]++; } return $count; }; function checkWhetherSame($array1, $array2) { $count1 = countHashes($array1); $count2 = countHashes($array2); if (count($count1) !== count($count2)) { return false; } foreach ($count1 as $key => $value) { if ($count2[$key] !== $value) { return false; } } return true; }; $a = new StdClass(); $b = new StdClass(); $array1 = array($a, $a, $b); $array2 = array($a, $b, $b); var_dump(checkWhetherSame($array1, $array2)); var_dump(checkWhetherSame($array1, $array1)); var_dump(checkWhetherSame($array2, $array2));
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(false) bool(true) bool(true)
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function spl_object_hash() in /in/0BbdO on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: spl_object_hash() in /in/0BbdO on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: spl_object_hash() in /in/0BbdO on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: spl_object_hash() in /in/0BbdO on line 7