3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Item { public $parent; public function newWithParent(Item $parent) { $item = new Item(); $item->parent = $parent; return $item; } } $item = new Item(); $item = $item->newWithParent($item->newWithParent($item->newWithParent($item))); echo(json_encode($item) . "\n");
Output for 5.2.0 - 7.1.0
{"parent":{"parent":{"parent":{"parent":null}}}}
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/fumka on line 16
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/fumka on line 4
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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/fumka on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/fumka on line 4
Process exited with code 255.