3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null; var_dump(++$); var_dump(++$a); var_dump($a += 1);
Output for 5.4.0 - 5.4.17
Parse error: syntax error, unexpected ')', expecting variable (T_VARIABLE) or '$' in /in/lDetn on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected ')', expecting T_VARIABLE or '$' in /in/lDetn on line 4
Process exited with code 255.
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179.03 ms | 1395 KiB | 53 Q