3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array("\0*\0_prot" => "dupa", "b" => "zupa"); $b = (object) $a; var_dump($b->_prot);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: Undefined property: stdClass::$_prot in /in/704WQ on line 5 NULL
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined property: stdClass::$_prot in /in/704WQ on line 5 NULL
Output for 7.3.32 - 7.3.33
NULL
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
Notice: Undefined property: stdClass::$_prot in /in/704WQ on line 5 NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Notice: Undefined property: _prot in /in/704WQ on line 5 NULL
preferences:
242.93 ms | 402 KiB | 347 Q