3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(serialize(array(1,2,3)));
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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, 8.3.0 - 8.3.6
string(30) "a:3:{i:0;i:1;i:1;i:2;i:2;i:3;}"
preferences:
206.71 ms | 404 KiB | 373 Q