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run code in 300+ PHP versions simultaneously
<?php $a = ['foo-test' => [1], '-' => [2], 'bar-test' => [3]]; uksort($a, function($x, $y) use ($a) { if (!isset($a[$x])) { throw new Exception("$x"); } if (!isset($a[$y])) { throw new Exception("$y"); } return $x < $y; });
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Deprecated: uksort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in /in/JucVZ on line 4
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Deprecated: uksort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in /in/JucVZ on line 14
Output for 5.5.0 - 5.5.38, 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

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223.3 ms | 403 KiB | 331 Q