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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Item { public static function &newWithParent(Item $parent) { $item = new Item(); $item->parent = $parent; return $item; } private $parent; public function &getParent() { return $this->parent; } } $item = Item::newWithParent(Item::newWithParent(Item::newWithParent(new Item()))); // Basically it's this now: {"parent":{"parent":{"parent":{"parent":null}}}} // I want to set that null value $list = $item; var_dump($list); do { $item = $item->getParent(); if ($item->getParent() === null) { var_dump($item); $item = &Item::newWithParent($item); var_dump($item); break; } } while (true); var_dump($list);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
object(Item)#4 (1) { ["parent":"Item":private]=> object(Item)#3 (1) { ["parent":"Item":private]=> object(Item)#2 (1) { ["parent":"Item":private]=> object(Item)#1 (1) { ["parent":"Item":private]=> NULL } } } } object(Item)#1 (1) { ["parent":"Item":private]=> NULL } object(Item)#5 (1) { ["parent":"Item":private]=> object(Item)#1 (1) { ["parent":"Item":private]=> NULL } } object(Item)#4 (1) { ["parent":"Item":private]=> object(Item)#3 (1) { ["parent":"Item":private]=> object(Item)#2 (1) { ["parent":"Item":private]=> object(Item)#1 (1) { ["parent":"Item":private]=> NULL } } } }
Output for 5.1.0 - 5.2.17
object(Item)#4 (1) { ["parent:private"]=> object(Item)#3 (1) { ["parent:private"]=> object(Item)#2 (1) { ["parent:private"]=> object(Item)#1 (1) { ["parent:private"]=> NULL } } } } object(Item)#1 (1) { ["parent:private"]=> NULL } object(Item)#5 (1) { ["parent:private"]=> object(Item)#1 (1) { ["parent:private"]=> NULL } } object(Item)#4 (1) { ["parent:private"]=> object(Item)#3 (1) { ["parent:private"]=> object(Item)#2 (1) { ["parent:private"]=> object(Item)#1 (1) { ["parent:private"]=> NULL } } } }
Output for 5.0.0 - 5.0.5
object(Item)#4 (1) { ["parent:private"]=> object(Item)#3 (1) { ["parent:private"]=> object(Item)#2 (1) { ["parent:private"]=> object(Item)#1 (1) { ["parent:private"]=> NULL } } } } object(Item)#1 (1) { ["parent:private"]=> &NULL } object(Item)#5 (1) { ["parent:private"]=> object(Item)#1 (1) { ["parent:private"]=> &NULL } } object(Item)#4 (1) { ["parent:private"]=> &object(Item)#3 (1) { ["parent:private"]=> &object(Item)#2 (1) { ["parent:private"]=> &object(Item)#1 (1) { ["parent:private"]=> &NULL } } } }
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/dSia7 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/dSia7 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/dSia7 on line 4
Process exited with code 255.