Posted in PHP onMarch 07, 2014
function arrange($arr){ $new_arr = array(); $c = count($arr); foreach($arr as $key=>$vo){ $lin = $arr; array_splice($lin,$key,1); for($l=0;$l<$c-1;$l++){ $larr = array(); $larr[] = $lin[$l]; $larr[] = $vo; $larr[] = $vo; $new_arr[] = $larr; } } return $new_arr; } $arr = array(1,2,3,4); $r = arrange($arr); print_r($r);
得到的结果是:
Array ( [0] => Array ( [0] => 2 [1] => 1 [2] => 1 ) [1] => Array ( [0] => 3 [1] => 1 [2] => 1 ) [2] => Array ( [0] => 4 [1] => 1 [2] => 1 ) [3] => Array ( [0] => 1 [1] => 2 [2] => 2 )
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