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<?php $mode[0] = array(1, 2, 5, 6); $mode[1] = array(3, 4, 7, 8); for($i=0;$i<2;$i++) { $flipped = array_flip($mode[$i]); print_r($flipped); } ?>
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [1] => 0 [2] => 1 [5] => 2 [6] => 3 ) Array ( [3] => 0 [4] => 1 [7] => 2 [8] => 3 )

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