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 5.4.0 - 5.4.22
Parse error: syntax error, unexpected end of file in /in/0pTn8 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected $end in /in/0pTn8 on line 3
Process exited with code 255.
preferences:
194.73 ms | 1395 KiB | 58 Q