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<?php $a = [1, 3, 5, 7, 9]; $b = [2, 4, 6, 7, 8]; print_r(array_unique(array_merge($a, $b)));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 1 [1] => 3 [2] => 5 [3] => 7 [4] => 9 [5] => 2 [6] => 4 [7] => 6 [9] => 8 )

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