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<?php function & genRefInner() { $var = 1; yield $var; } function & genRefOuter() { return genRefInner(); } foreach(genRefOuter() as $i) { var_dump($i); }
Output for git.master, git.master_jit, rfc.property-hooks
Notice: Only variable references should be returned by reference in /in/sFR11 on line 9 int(1)

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