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<?php class myparent { public function foo($bar) { // do stuff } } class mychild extends myparent { public $val; public function bar(myparent &$baz) { // do stuff } public function __construct($val) { $this->val = $val; } } $child = new mychild('hello world'); $child->foo('test'); $child->bar('test');
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: mychild::bar(): Argument #1 ($baz) cannot be passed by reference in /in/4k2nA:24 Stack trace: #0 {main} thrown in /in/4k2nA on line 24
Process exited with code 255.

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