3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Widget implements Serializable { public $references = array(); public function serialize() { $vars = get_object_vars($this); $serialized = serialize($vars); return $serialized; } public function unserialize($serialized) { $array = unserialize($serialized); foreach($array as $k => $v) $this->$k = $v; } } class Placeholder { public $id; public function __construct($id) { $this->id = $id; } } $placeholder1 = new Placeholder(1); $placeholder2 = new Placeholder(2); $widgets = array(new Widget, new Widget, new Widget, new Widget); $widgets[0]->references[] = $placeholder1; $widgets[1]->references[] = $placeholder2; $widgets[2]->references[] = $placeholder1; $widgets[3]->references[] = $placeholder1; unserialize(serialize($widgets));
Output for 5.1.0 - 7.1.0
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/B07hH on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/B07hH on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/B07hH on line 2
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/B07hH on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/B07hH on line 2
Process exited with code 255.