3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = 'a:1:{s:10:"2147483649";s:1:"A";}'; var_export(unserialize($s));
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array ( 2147483649 => 'A', )
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
array ( '2147483649' => 'A', )
preferences:
201.49 ms | 402 KiB | 397 Q