3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('pie', 'cake'); echo $array[0][];
Output for 5.3.0 - 5.3.15, 5.4.0 - 5.4.5
Fatal error: Cannot use [] for reading in Ld0Ck on line 5
Process exited with code 255.
preferences:
169.51 ms | 1395 KiB | 29 Q