3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); isset($a['a']['1']) && unset($a['a']['1']);
Output for 5.4.0 - 5.4.12, 5.4.14
Parse error: syntax error, unexpected 'unset' (T_UNSET) in ddtBl on line 3
Process exited with code 255.
Output for 5.4.13
Parse error: syntax error, unexpected 'unset' (T_UNSET) in /in/uhsMS on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.22, 5.3.24
Parse error: syntax error, unexpected T_UNSET in ddtBl on line 3
Process exited with code 255.
Output for 5.3.23
Parse error: syntax error, unexpected T_UNSET in /in/uhsMS on line 3
Process exited with code 255.
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175.79 ms | 1395 KiB | 47 Q