3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class X {}; class Y implements Serializable{ public $data = array(); public function serialize() { return serialize($this->data); } public function unserialize($data) { $this->data = unserialize($data); } }; $x = new X(); $y = new Y(); var_dump(serialize($x)); var_dump(serialize($y));
based on 0HPo0
Output for 5.1.0 - 7.2.0
string(12) "O:1:"X":0:{}" string(18) "C:1:"Y":6:{a:0:{}}"
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/AdTb8 on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/AdTb8 on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/AdTb8 on line 5
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/AdTb8 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/AdTb8 on line 5
Process exited with code 255.