3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(NULL => 1, 'BLA' => 3); print_r($array); $array[NULL] => 2; print_r($array);
Output for 5.4.0 - 5.4.29
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW) in /in/gukT0 on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_DOUBLE_ARROW in /in/gukT0 on line 5
Process exited with code 255.
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180.78 ms | 1399 KiB | 66 Q