3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(unpack('i', "\0\0\0".chr(1));
Output for 5.3.0 - 5.3.23, 5.4.0 - 5.4.13
Parse error: syntax error, unexpected ';' in /in/vLm4M on line 2
Process exited with code 255.
preferences:
179.63 ms | 940 KiB | 46 Q