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run code in 300+ PHP versions simultaneously
<?php $array = array(0); foreach ($array as $key => &$val) { var_dump($val); $array[++$key] = 'lolcats'; }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
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"lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" string(7) "lolcats" s
Process exited with code 137.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
int(0)

preferences:
272.37 ms | 401 KiB | 222 Q