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<?php class Foo { protected $bar; public function __construct(BarInterface $bar) { $this->bar = $bar; } public function doAction() { $bar->getVar(); } } interface BarInterface { public function getVar(); } abstract class BarAbstract implements BarInterface { public function getVar() { return $this->var; } } class Bar extends BarAbstract { protected $var = __CLASS__; } class Baz extends BarAbstract { protected $var = __CLASS__; } $bar = new Bar(); $foo = new Foo($bar); $foo->doAction();
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $bar in /in/NFvE0 on line 13 Fatal error: Uncaught Error: Call to a member function getVar() on null in /in/NFvE0:13 Stack trace: #0 /in/NFvE0(43): Foo->doAction() #1 {main} thrown in /in/NFvE0 on line 13
Process exited with code 255.

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