本文实例讲述了PHP实现的简单组词算法。分享给大家供大家参考,具体如下:
<?php //组词算法 function diyWords($arr,$m){ $result = array(); if ($m ==1){//只剩一个词时直接返回 return $arr; } if ($m == count($arr)){ $result[] = implode('' , $arr); return $result; } $temp_firstelement = $arr[0]; unset($arr[0]); $arr = array_values($arr); $temp_list1 = diyWords($arr, ($m-1)); foreach ($temp_list1 as $s){ $s = $temp_firstelement.$s; $result[] = $s; } $temp_list2 = diyWords($arr, $m); foreach ($temp_list2 as $s){ $result[] = $s; } return $result; } //组词算法 $arr=array('裤子','牛仔','低腰','加肥'); $count=count($arr); for($i=1;$i<=$count;$i++){ $temp[$i]=diyWords($arr,$i); } echo '<pre/>';print_r($temp);
运行结果:
Array
(
[1] => Array
(
[0] => 裤子
[1] => 牛仔
[2] => 低腰
[3] => 加肥
)
[2] => Array
(
[0] => 裤子牛仔
[1] => 裤子低腰
[2] => 裤子加肥
[3] => 牛仔低腰
[4] => 牛仔加肥
[5] => 低腰加肥
)
[3] => Array
(
[0] => 裤子牛仔低腰
[1] => 裤子牛仔加肥
[2] => 裤子低腰加肥
[3] => 牛仔低腰加肥
)
[4] => Array
(
[0] => 裤子牛仔低腰加肥
)
)
希望本文所述对大家PHP程序设计有所帮助。