3v4l.org

run code in 300+ PHP versions simultaneously
<?php $out = array('one', 'two', 'three'); echo 'Serialized: '.serialize($out).' '; echo 'Unserialized: '.print_r(unserialize(serialize($out)), true);
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Serialized: a:3:{i:0;s:3:"one";i:1;s:3:"two";i:2;s:5:"three";} Unserialized: Array ( [0] => one [1] => two [2] => three )

preferences:
223.54 ms | 406 KiB | 351 Q