3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo 123[1];
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.25
Parse error: syntax error, unexpected '[', expecting ',' or ';' in /in/GJnH6 on line 2
Process exited with code 255.
preferences:
182.66 ms | 1395 KiB | 62 Q