3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(unserialize('O:8:"stdClass":2:{s:1:"a"Xs:1:"b"}s:1:"c"Xs:1:"d"X}'));
Output for 8.3.0 - 8.3.4
Warning: unserialize(): Error at offset 25 of 51 bytes in /in/pv1Jg on line 2 bool(false)
Output for 5.6.21 - 5.6.28, 7.0.6 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17
Notice: unserialize(): Error at offset 25 of 51 bytes in /in/pv1Jg on line 2 bool(false)
Output for 7.3.32 - 7.3.33
bool(false)
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 - 5.6.20, 7.0.0 - 7.0.5
object(stdClass)#1 (2) { ["a"]=> string(1) "b" ["c"]=> string(1) "d" }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
object(stdClass)(2) { ["a"]=> string(1) "b" ["c"]=> string(1) "d" }

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217.58 ms | 401 KiB | 367 Q