3v4l.org

run code in 300+ PHP versions simultaneously
<?php $list = new SplDoublyLinkedList; $list->push("foo"); $list->push("bar"); $ser = $list->serialize(); var_dump($ser); var_dump(unserialize($ser));
Output for 8.3.0 - 8.3.4
string(26) "i:0;:s:3:"foo";:s:3:"bar";" Warning: unserialize(): Extra data starting at offset 4 of 26 bytes in /in/pGKIG on line 7 int(0)
Output for 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 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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
string(26) "i:0;:s:3:"foo";:s:3:"bar";" int(0)
Output for 5.3.0 - 5.3.29
Fatal error: Call to undefined method SplDoublyLinkedList::serialize() in /in/pGKIG on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Fatal error: Class 'SplDoublyLinkedList' not found in /in/pGKIG on line 2
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: spldoublylinkedlist in /in/pGKIG on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: spldoublylinkedlist in /in/pGKIG on line 2

preferences:
234.24 ms | 401 KiB | 308 Q