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run code in 300+ PHP versions simultaneously
<?php class SomeCollection extends ArrayObject {} $meh = new SomeCollection(); $meh[] = 'item'; echo serialize($meh);
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:14:"SomeCollection":4:{i:0;i:0;i:1;a:1:{i:0;s:4:"item";}i:2;a:0:{}i:3;N;}
Output for 7.4.0 - 7.4.5
O:14:"SomeCollection":3:{i:0;i:0;i:1;a:1:{i:0;s:4:"item";}i:2;a:0:{}}
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 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 - 7.3.33
C:14:"SomeCollection":36:{x:i:0;a:1:{i:0;s:4:"item";};m:a:0:{}}
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
O:14:"SomeCollection":1:{i:0;s:4:"item";}
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Class somecollection: Cannot inherit from undefined class arrayobject in /in/TLI6Y on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Class somecollection: Cannot inherit from undefined class arrayobject in /in/TLI6Y on line 3

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