3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('fname'=>'Buck','mname'=>'Jerry','lname'=>'Tomas'); $aO = new ArrayObject($array); $aO2 = new ArrayObject($array); echo $aO == $aO2; echo "\n",$aO === $aO2 ? 'true' : 'false'; echo "\n", $aO["fname"]; echo "\n", $aO["fname"] === $aO2["fname"];
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, 5.5.24 - 5.5.35, 5.6.8 - 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
1 false Buck 1
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/7JUZb on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/7JUZb on line 3

preferences:
240.22 ms | 401 KiB | 336 Q