3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = NULL; echo is_null(unserialize($test));
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: unserialize(): Passing null to parameter #1 ($data) of type string is deprecated in /in/eMre3 on line 5
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.3 - 5.0.5, 5.1.0 - 5.1.6
Notice: unserialize(): Argument is not a string in /in/eMre3 on line 5
Output for 4.3.2 - 4.3.9, 5.0.0 - 5.0.2
Notice: unserialize(): Argument is not an string in /in/eMre3 on line 5
Output for 4.3.0 - 4.3.1
Notice: unserialize() [http://www.php.net/function.unserialize]: Argument is not an string in /in/eMre3 on line 5

preferences:
207.59 ms | 401 KiB | 307 Q