3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(unserialize('s:5:"title";s:2:"MR";s:9:"FirstName";s:5:"hjklh";s:8:"LastName";s:4:"hjkl";'));
Output for 8.3.0 - 8.3.6
Warning: unserialize(): Extra data starting at offset 12 of 75 bytes in /in/jrpvR on line 2 string(5) "title"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.31, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
string(5) "title"

preferences:
278.58 ms | 406 KiB | 415 Q