3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Example implements Serializable { /* Serializable */ public function serialize() { // We need to serialize everything because a run-time object of this class hasn't a reference return serialize(array( 'label' => 'a label', 'links' => 'some links', 'attrs' => 'some attrs', )); } public function unserialize($s) { return 'pie'; } } $o = new Example; $o->self = $o; echo serialize($o);
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
C:7:"Example":92:{a:3:{s:5:"label";s:7:"a label";s:5:"links";s:10:"some links";s:5:"attrs";s:10:"some attrs";}}
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/PV0m7 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/PV0m7 on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/PV0m7 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/PV0m7 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/PV0m7 on line 3
Process exited with code 255.