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<?php $a = array(0,1,2); $maxtries = intval(count($a)*(floatval(count($a)+1)/2.0)); $tries = 0; while(!empty($a) && $tries<$maxtries) { echo "Try number: $tries\n"; print_r($a); array_push($a, $a[$tries]); unset($a[$tries]); $tries += 1; } echo "done\n"; print_r($a);
Output for git.master, git.master_jit, rfc.property-hooks
Try number: 0 Array ( [0] => 0 [1] => 1 [2] => 2 ) Try number: 1 Array ( [1] => 1 [2] => 2 [3] => 0 ) Try number: 2 Array ( [2] => 2 [3] => 0 [4] => 1 ) Try number: 3 Array ( [3] => 0 [4] => 1 [5] => 2 ) Try number: 4 Array ( [4] => 1 [5] => 2 [6] => 0 ) Try number: 5 Array ( [5] => 2 [6] => 0 [7] => 1 ) done Array ( [6] => 0 [7] => 1 [8] => 2 )

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