3v4l.org

run code in 300+ PHP versions simultaneously
<?php $hexstream = array(); for ($i = 0; $i < 23; i++) $hexstream['pack'][$i] = pack('v', $i); echo $hexstream['pack'];
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected '++' (T_INC), expecting ')' in /in/iUjvW on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_INC, expecting ')' in /in/iUjvW on line 3
Process exited with code 255.
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183.07 ms | 1395 KiB | 65 Q