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run code in 300+ PHP versions simultaneously
<?php $array= [[1], [2], [3], [4], [5], [6], [7], [8], [9]]; foreach(array_keys($array) as $key) { unset($array($key)); } print_r($array);
Output for 5.4.0 - 5.4.39
Fatal error: Can't use function return value in write context in /in/9C2NU on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/9C2NU on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/9C2NU on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9C2NU on line 2
Process exited with code 255.
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231.63 ms | 1399 KiB | 129 Q