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<?php function assignIfSet($testable, &$assigned) { if(isset($testable)) { $assigned = $testable; return true; } $assigned = null; return false; } $arr = [ 'foo' => (object)[ 'bar' => (object)[ 'zigi' => 1 ] ] ]; if(assignIfSet($arr['foo']->bar->zigi, 'Hello World')) { echo 'Success'; } else { echo 'Failure'; }
Output for git.master, git.master_jit
Fatal error: Uncaught Error: assignIfSet(): Argument #2 ($assigned) could not be passed by reference in /in/805Zj:20 Stack trace: #0 {main} thrown in /in/805Zj on line 20
Process exited with code 255.
Output for rfc.property-hooks
Fatal error: Uncaught Error: assignIfSet(): Argument #2 ($assigned) cannot be passed by reference in /in/805Zj:20 Stack trace: #0 {main} thrown in /in/805Zj on line 20
Process exited with code 255.

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