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<?php class foo { protected $bar = 'A bar'; public function getBarDumper() { return function() { var_dump($this->bar); }; } } class bar { protected $bar = 'A fucking bar!'; } $foo = new foo(); $bar = new bar(); $barDumper = $foo->getBarDumper(); $barDumper = $barDumper->bindTo($bar); $barDumper();
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Cannot access protected property bar::$bar in /in/lngjE:9 Stack trace: #0 /in/lngjE(22): foo->{closure}() #1 {main} thrown in /in/lngjE on line 9
Process exited with code 255.

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