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<?php $arr1 = ['one', 'two', 'three']; $arr2 = ['three', 'four']; $arr3 = ['two', 'five', 'six', 'seven']; print_r( array_unique( $arr1 + $arr2 + $arr3) );
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => one [1] => two [2] => three [3] => seven )

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