彩票排列三组选三算法-PHP源码

彩票排列三组选三算法-PHP源码

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);