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run code in 300+ PHP versions simultaneously
<?php $b = [1 => 1, 'z' => 1]; $a = [4 => 1, 'z' => 2]; if (count(array_diff(array_merge($a, $b), array_intersect($a, $b))) === 0) { echo 'the same'; } else { echo 'not the same'; }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
the same

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205.81 ms | 403 KiB | 287 Q