3v4l.org

run code in 300+ PHP versions simultaneously
<?php unserialize(a:2:{i:0;a:1:{s:7:"user_id";s:1:"8";}i:1;a:1:{s:7:"user_id";s:1:"8";}})
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.22
Parse error: syntax error, unexpected ':' in /in/vvS0Q on line 3
Process exited with code 255.
preferences:
178.7 ms | 1395 KiB | 58 Q