3v4l.org

run code in 300+ PHP versions simultaneously
<?php $oo=unserialize('O:6:"person":2:{s:4:"name";s:5:"zhang";s:3:"age";i:23;}'); var_dump($oo);
Output for 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 - 5.6.28, 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
object(__PHP_Incomplete_Class)#1 (3) { ["__PHP_Incomplete_Class_Name"]=> string(6) "person" ["name"]=> string(5) "zhang" ["age"]=> int(23) }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
object(__PHP_Incomplete_Class)(3) { ["__PHP_Incomplete_Class_Name"]=> string(6) "person" ["name"]=> string(5) "zhang" ["age"]=> int(23) }

preferences:
264.86 ms | 402 KiB | 384 Q