3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = array(); isset($x[1]) || isset($x[2]) || isset($x[3])
Output for 5.4.0 - 5.4.19
Parse error: syntax error, unexpected end of file in /in/qLReF on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected $end in /in/qLReF on line 4
Process exited with code 255.
preferences:
180.79 ms | 1395 KiB | 55 Q