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<?php $foo = new StdClass; $foo->$bar = [ 'baz' => 'bang' ]; $bar = 'a'; echo $foo->$bar['baz'];
Output for git.master, git.master_jit
Warning: Undefined variable $bar in /in/Ta6BU on line 4 Warning: Undefined property: stdClass::$a in /in/Ta6BU on line 11 Warning: Trying to access array offset on value of type null in /in/Ta6BU on line 11
Output for rfc.property-hooks
Warning: Undefined variable $bar in /in/Ta6BU on line 4 Warning: Undefined property: stdClass::$a in /in/Ta6BU on line 11 Warning: Trying to access array offset on null in /in/Ta6BU on line 11

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