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<?php $a = array(1,-1,0,NULL,2,0,-2); asort($a, SORT_NUMERIC); print_r($a);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [6] => -2 [1] => -1 [2] => 0 [3] => [5] => 0 [0] => 1 [4] => 2 )

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