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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]; print_r($a);
Output for 7.0.20, 7.1.6 - 7.1.10
Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array ( [0] => Array
Process exited with code 137.
Output for 7.1.5

Process exited with code 137.