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run code in 150+ php & hhvm versions
Bugs & Features
<?php class a { } class b { protected $object; public function __construct() { $this->object = new stdClass(); $this->object->name = "default"; } public function setObject(a $object) { $this->object = $object; } public function getObject() { return $this->object; } public function __clone() { $this->object = clone $this->object; } } class runner extends b { public $target; public function __construct() { parent::__construct(); $this->target = new a(); } public function run() { $object1 = new a(); $object1->name = "object1"; $object2 = new a(); $object2->name = "object2"; if (1 == 2) { // } elseif ($object1 instanceof $this->target->object) { $b2 = clone $this->target; $b2->object = $object1; echo $b2->getObject()->name; } } } $runner = new runner(); $runner->run();
Output for 7.0.0 - 7.1.0
Notice: Undefined property: a::$object in /in/SKijY on line 48 Fatal error: Uncaught Error: Class name must be a valid object or a string in /in/SKijY:48 Stack trace: #0 /in/SKijY(58): runner->run() #1 {main} thrown in /in/SKijY on line 48
Process exited with code 255.
Output for 5.2.6 - 5.6.28, hhvm-3.12.0
Notice: Undefined property: a::$object in /in/SKijY on line 48 Fatal error: Class name must be a valid object or a string in /in/SKijY on line 48
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.0 - 5.2.5
Notice: Undefined property: a::$object in /in/SKijY on line 48 Fatal error: Class name must be a valid object or a string in /in/SKijY on line 48
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/SKijY on line 8
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/SKijY on line 8
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/SKijY on line 8
Process exited with code 255.