求一个递归函数把其显示出来的数据以数据形式return
<code> function strToLeft($num,$arr){ $i = $arr[$num]; unset($arr[$num]); array_push($arr,$i); return $arr; } function combine_increase($arr, $start, $result, $count, $NUM, $arr_len) { $i = 0; for ($i = $start; $i = 0; $j--) { //if ($j!=0){echo($arr[$result[$j]].","); }else{echo($arr[$result[$j]]); } array_push($tmp, $arr[$result[$j]]); } var_dump(strToLeft(rand(0,$NUM-1),$tmp)); echo("<br>"); } else { combine_increase($arr, $i + 1, $result, $count - 1, $NUM, $arr_len); } } } $arr = array('a1','b2','c3','d4','e5','x1','y1','z1'); $num = 3; $result[$num]=array(); echo "('a1','b2','c3','d4','e5','x1','y1','z1')"; echo "<br>"; combine_increase($arr, 0, $result, $num, $num, count($arr));</code>
以上代码可生成array('a1','b2','c3','d4','e5','x1','y1','z1');这个数组中某三个元素的不同组合,你可以通过laravel(用这个框架写的)或php执行(可能需要小改一下),看一下显示结果,结果应该如下:
('a1','b2','c3','d4','e5','x1','y1','z1')
array(3) { [0]=> string(2) "a1" [2]=> string(2) "c3" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "d4" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "e5" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "a1" [1]=> string(2) "b2" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "y1" [3]=> string(2) "b2" }
array(3) { [1]=> string(2) "b2" [2]=> string(2) "z1" [3]=> string(2) "a1" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "d4" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "e5" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "a1" [1]=> string(2) "c3" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "y1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "z1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "e5" [3]=> string(2) "d4" }
array(3) { [1]=> string(2) "d4" [2]=> string(2) "x1" [3]=> string(2) "a1" }
array(3) { [0]=> string(2) "a1" [1]=> string(2) "d4" [3]=> string(2) "y1" }
array(3) { [1]=> string(2) "d4" [2]=> string(2) "z1" [3]=> string(2) "a1" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "x1" [3]=> string(2) "a1" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "y1" [3]=> string(2) "a1" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "z1" [3]=> string(2) "a1" }
array(3) { [0]=> string(2) "a1" [1]=> string(2) "x1" [3]=> string(2) "y1" }
array(3) { [1]=> string(2) "x1" [2]=> string(2) "z1" [3]=> string(2) "a1" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "z1" [3]=> string(2) "y1" }
array(3) { [1]=> string(2) "c3" [2]=> string(2) "d4" [3]=> string(2) "b2" }
array(3) { [1]=> string(2) "c3" [2]=> string(2) "e5" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "x1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "c3" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "z1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "d4" [3]=> string(2) "e5" }
array(3) { [1]=> string(2) "d4" [2]=> string(2) "x1" [3]=> string(2) "b2" }
array(3) { [1]=> string(2) "d4" [2]=> string(2) "y1" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "z1" [3]=> string(2) "d4" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "x1" [3]=> string(2) "e5" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "e5" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "e5" [3]=> string(2) "z1" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "x1" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "z1" [3]=> string(2) "x1" }
array(3) { [1]=> string(2) "y1" [2]=> string(2) "z1" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "c3" [1]=> string(2) "d4" [3]=> string(2) "e5" }
array(3) { [0]=> string(2) "c3" [1]=> string(2) "d4" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "c3" [1]=> string(2) "d4" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "c3" [1]=> string(2) "d4" [3]=> string(2) "z1" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "x1" [3]=> string(2) "c3" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "y1" [3]=> string(2) "c3" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "z1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "c3" [2]=> string(2) "y1" [3]=> string(2) "x1" }
array(3) { [1]=> string(2) "x1" [2]=> string(2) "z1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "c3" [2]=> string(2) "z1" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "d4" [2]=> string(2) "x1" [3]=> string(2) "e5" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "y1" [3]=> string(2) "d4" }
array(3) { [0]=> string(2) "d4" [1]=> string(2) "e5" [3]=> string(2) "z1" }
array(3) { [0]=> string(2) "d4" [2]=> string(2) "y1" [3]=> string(2) "x1" }
array(3) { [1]=> string(2) "x1" [2]=> string(2) "z1" [3]=> string(2) "d4" }
array(3) { [1]=> string(2) "y1" [2]=> string(2) "z1" [3]=> string(2) "d4" }
array(3) { [0]=> string(2) "e5" [2]=> string(2) "y1" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "e5" [2]=> string(2) "z1" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "e5" [2]=> string(2) "z1" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "x1" [2]=> string(2) "z1" [3]=> string(2) "y1" }
每次生成的结果每行可能有变化,但是行数不变
**
这个函数虽然能列印出来这个结果,但是我想通过return把以上n行一维数组以一个整体的二维数组返回并可以调用对比等,一直没人能解答,苦苦求问!!!
**
回复内容:
<code> function strToLeft($num,$arr){ $i = $arr[$num]; unset($arr[$num]); array_push($arr,$i); return $arr; } function combine_increase($arr, $start, $result, $count, $NUM, $arr_len) { $i = 0; for ($i = $start; $i = 0; $j--) { //if ($j!=0){echo($arr[$result[$j]].","); }else{echo($arr[$result[$j]]); } array_push($tmp, $arr[$result[$j]]); } var_dump(strToLeft(rand(0,$NUM-1),$tmp)); echo("<br>"); } else { combine_increase($arr, $i + 1, $result, $count - 1, $NUM, $arr_len); } } } $arr = array('a1','b2','c3','d4','e5','x1','y1','z1'); $num = 3; $result[$num]=array(); echo "('a1','b2','c3','d4','e5','x1','y1','z1')"; echo "<br>"; combine_increase($arr, 0, $result, $num, $num, count($arr));</code>
以上代码可生成array('a1','b2','c3','d4','e5','x1','y1','z1');这个数组中某三个元素的不同组合,你可以通过laravel(用这个框架写的)或php执行(可能需要小改一下),看一下显示结果,结果应该如下:
('a1','b2','c3','d4','e5','x1','y1','z1')
array(3) { [0]=> string(2) "a1" [2]=> string(2) "c3" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "d4" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "e5" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "a1" [1]=> string(2) "b2" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "y1" [3]=> string(2) "b2" }
array(3) { [1]=> string(2) "b2" [2]=> string(2) "z1" [3]=> string(2) "a1" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "d4" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "e5" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "a1" [1]=> string(2) "c3" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "y1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "z1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "e5" [3]=> string(2) "d4" }
array(3) { [1]=> string(2) "d4" [2]=> string(2) "x1" [3]=> string(2) "a1" }
array(3) { [0]=> string(2) "a1" [1]=> string(2) "d4" [3]=> string(2) "y1" }
array(3) { [1]=> string(2) "d4" [2]=> string(2) "z1" [3]=> string(2) "a1" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "x1" [3]=> string(2) "a1" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "y1" [3]=> string(2) "a1" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "z1" [3]=> string(2) "a1" }
array(3) { [0]=> string(2) "a1" [1]=> string(2) "x1" [3]=> string(2) "y1" }
array(3) { [1]=> string(2) "x1" [2]=> string(2) "z1" [3]=> string(2) "a1" }
array(3) { [0]=> string(2) "a1" [2]=> string(2) "z1" [3]=> string(2) "y1" }
array(3) { [1]=> string(2) "c3" [2]=> string(2) "d4" [3]=> string(2) "b2" }
array(3) { [1]=> string(2) "c3" [2]=> string(2) "e5" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "x1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "c3" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "z1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "d4" [3]=> string(2) "e5" }
array(3) { [1]=> string(2) "d4" [2]=> string(2) "x1" [3]=> string(2) "b2" }
array(3) { [1]=> string(2) "d4" [2]=> string(2) "y1" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "z1" [3]=> string(2) "d4" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "x1" [3]=> string(2) "e5" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "e5" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "e5" [3]=> string(2) "z1" }
array(3) { [0]=> string(2) "b2" [1]=> string(2) "x1" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "b2" [2]=> string(2) "z1" [3]=> string(2) "x1" }
array(3) { [1]=> string(2) "y1" [2]=> string(2) "z1" [3]=> string(2) "b2" }
array(3) { [0]=> string(2) "c3" [1]=> string(2) "d4" [3]=> string(2) "e5" }
array(3) { [0]=> string(2) "c3" [1]=> string(2) "d4" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "c3" [1]=> string(2) "d4" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "c3" [1]=> string(2) "d4" [3]=> string(2) "z1" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "x1" [3]=> string(2) "c3" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "y1" [3]=> string(2) "c3" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "z1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "c3" [2]=> string(2) "y1" [3]=> string(2) "x1" }
array(3) { [1]=> string(2) "x1" [2]=> string(2) "z1" [3]=> string(2) "c3" }
array(3) { [0]=> string(2) "c3" [2]=> string(2) "z1" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "d4" [2]=> string(2) "x1" [3]=> string(2) "e5" }
array(3) { [1]=> string(2) "e5" [2]=> string(2) "y1" [3]=> string(2) "d4" }
array(3) { [0]=> string(2) "d4" [1]=> string(2) "e5" [3]=> string(2) "z1" }
array(3) { [0]=> string(2) "d4" [2]=> string(2) "y1" [3]=> string(2) "x1" }
array(3) { [1]=> string(2) "x1" [2]=> string(2) "z1" [3]=> string(2) "d4" }
array(3) { [1]=> string(2) "y1" [2]=> string(2) "z1" [3]=> string(2) "d4" }
array(3) { [0]=> string(2) "e5" [2]=> string(2) "y1" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "e5" [2]=> string(2) "z1" [3]=> string(2) "x1" }
array(3) { [0]=> string(2) "e5" [2]=> string(2) "z1" [3]=> string(2) "y1" }
array(3) { [0]=> string(2) "x1" [2]=> string(2) "z1" [3]=> string(2) "y1" }
每次生成的结果每行可能有变化,但是行数不变
**
这个函数虽然能列印出来这个结果,但是我想通过return把以上n行一维数组以一个整体的二维数组返回并可以调用对比等,一直没人能解答,苦苦求问!!!
**
这是个递归函数。。其实你要是在Larvae里面用,某个控制器,或者你自己写的class。反正一定要是个类里面,就可以这样
首先在顶端声明一个变量
<code>var $res_array; </code>
然后在初始化里面去填空这个数组
<code>$this->res_array = []; </code>
然后在下面你的Function里面,不要输出,而是放到数组里。
<code> function combine_increase($arr, $start, $result, $count, $NUM, $arr_len) { $i = 0; for ($i = $start; $i = 0; $j--) { //if ($j!=0){echo($arr[$result[$j]].","); }else{echo($arr[$result[$j]]); } array_push($tmp, $arr[$result[$j]]); } $this->res_array[] = strToLeft(rand(0,$NUM-1),$tmp); } else { combine_increase($arr, $i + 1, $result, $count - 1, $NUM, $arr_len); } } } </code>
最后调用的时候
<code> $arr = array('a1','b2','c3','d4','e5','x1','y1','z1'); $num = 3; $result[$num]=array(); echo "('a1','b2','c3','d4','e5','x1','y1','z1')"; echo "<br>"; combine_increase($arr, 0, $result, $num, $num, count($arr)); $res = $this->res_array; //就是你要的东西了 </code>
不过这里注意,一定是个类才能这么玩,PHP也有种办法,其实就是声明一个全局变量,然后把你所有echo数组的那里变成存入这个变量。最后取这个变量就行了。。。
或者。你如果不想用全局变量。那么就传递吧。
<code> function combine_increase($arr, $start, $result, $count, $NUM, $arr_len, &$res_arr) { $i = 0; for ($i = $start; $i = 0; $j--) { //if ($j!=0){echo($arr[$result[$j]].","); }else{echo($arr[$result[$j]]); } array_push($tmp, $arr[$result[$j]]); } $res_arr[] = strToLeft(rand(0,$NUM-1),$tmp); } else { combine_increase($arr, $i + 1, $result, $count - 1, $NUM, $arr_len,$res_arr); } } } </code>
调用的时候
<code> $arr = array('a1','b2','c3','d4','e5','x1','y1','z1'); $num = 3; $result[$num]=array(); echo "('a1','b2','c3','d4','e5','x1','y1','z1')"; echo "<br>"; combine_increase($arr, 0, $result, $num, $num, count($arr), $res_arr); var_dump($res_arr); //$res_arr就你要的那个</code>
你可以去看看这个函数array_combine(),他拥有自动排序的功能

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