3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(); $array[null] = 1; $array[null] = 2 var_dump($array);
Output for 5.4.0 - 5.4.4
Parse error: syntax error, unexpected 'var_dump' (T_STRING) in /in/jv78q on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.14
Parse error: syntax error, unexpected T_STRING in /in/jv78q on line 6
Process exited with code 255.
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166.19 ms | 1395 KiB | 27 Q