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<?php $arr1 = array( 'a' => 'Apple', 'b' => 'Banana' ); $arr2 = array( 'b' => 'Banana', 'a' => 'Australia', 'Apple' ); $arr3 = array_diff($arr1, $arr2); $arr4 = array_diff($arr2, $arr1); $keys = array_keys($arr4); echo count($arr3) . ' - ' . $keys[0]; ?>
Output for git.master, git.master_jit, rfc.property-hooks
0 - a

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