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<?php $arr1 = ['o' => 'vote', 'u' => 'true']; $arr2 = ['p' => '', 'v' => 'digit']; $merged = array_merge($arr1, $arr2); rsort($merged); echo '<pre>'; print_r($merged); ?>
Output for git.master, git.master_jit, rfc.property-hooks
<pre>Array ( [0] => vote [1] => true [2] => digit [3] => )

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