3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class huh extends ArrayObject implements Serializable { public function serialize() { return serialize($this->getIterator()); } public function unserialize($data) { $this->exchangeArray($data); } } $value = new huh(); $value[] = $value; echo serialize($value);
Output for 7.0.0 - 7.1.0
C:3:"huh":45:{C:13:"ArrayIterator":19:{x:i:0;r:1;;m:a:0:{}}}
Output for hhvm-3.12.0
Assertion failure: /build/hhvm/src/hhvm-HHVM-3.12.0/hphp/runtime/base/runtime-error.cpp:48: void HPHP::raise_error(const string&): assertion `0' failed.
Process exited with code 134.
Output for hhvm-3.10.0
Fatal error: Stack overflow in /in/bHd7l on line 5
Process exited with code 255.
Output for 5.4.0 - 5.6.28
C:3:"huh":52:{C:13:"ArrayIterator":26:{x:i:16777216;r:1;;m:a:0:{}}}
Output for 5.1.0 - 5.3.29

Process exited with code 139.
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/bHd7l on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/bHd7l 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/bHd7l 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/bHd7l on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/bHd7l on line 3
Process exited with code 255.