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<?php function bar() { $a = array('a' => '1234567890'); return $a; } var_dump(array_pop(bar())); $x = bar(); var_dump(array_pop($x));
Output for git.master, git.master_jit, rfc.property-hooks
Notice: Only variables should be passed by reference in /in/qUDOv on line 7 string(10) "1234567890" string(10) "1234567890"

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