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<?php $a = array(11, 22, 33, 44); var_dump(array_shift(array_filter(array(null, 'aaa', 111, 33))));
Output for git.master, git.master_jit, rfc.property-hooks
Notice: Only variables should be passed by reference in /in/DCJhG on line 4 string(3) "aaa"

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