3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo serialize(new ArrayObject(array()));
Output for 7.4.6 - 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
O:11:"ArrayObject":4:{i:0;i:0;i:1;a:0:{}i:2;a:0:{}i:3;N;}
Output for 7.4.0 - 7.4.5
O:11:"ArrayObject":3:{i:0;i:0;i:1;a:0:{}i:2;a:0:{}}
Output for 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
C:11:"ArrayObject":21:{x:i:0;a:0:{};m:a:0:{}}
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
O:11:"ArrayObject":0:{}
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/CEQKJ on line 1
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/CEQKJ on line 1

preferences:
241.3 ms | 401 KiB | 356 Q