3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new ArrayObject(); $a['ID'] = 42; $b = &$a['ID']; $c = $a; $c['ID'] &= 0; $c['ID'] |= 37; echo $a['ID']."\n"; echo $b."\n"; echo $c['ID']."\n";
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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
37 42 37
Output for 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 - 5.6.38
37 37 37
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Objects used as arrays in post/pre increment/decrement must return values by reference in /in/59h2t on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/59h2t on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/59h2t on line 2
preferences:
274.36 ms | 401 KiB | 424 Q