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回复讨论(解决方案)
Home Backend Development PHP Tutorial 还是关于【关于php数组排序的问题?】

还是关于【关于php数组排序的问题?】

Jun 23, 2016 pm 02:22 PM

实在不好意思,应该是我描述的问题,版主没看清 哈哈 我也迷迷糊糊的结贴了。
http://bbs.csdn.net/topics/390595473?page=1#post-395606907

$arr = array('中','秋','节','快','乐')
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实际我想要的效果,版主的程序已经差不多出来了,但是还差了一点就是版主的程序出来的都是【中】开头的,我想要的效果是前面的字也可以减少:
比如有这种的排序(里面红色字体的)
中秋节快乐
中秋节快
中秋节乐
中秋节
秋节快
秋节
节乐
中秋



最后最好也是成为一个数组~


我刚才想用前面帖子版主给的程序改下,但是俺不是专业程序员,刚开始学习,是在改不明白,再次还得麻烦大家帮忙,谢谢了


回复讨论(解决方案)

依据什么减少?
节快乐 又为何不在其中?

按我的代码,执行完一遍后,去掉数组的第一个元素再去执行
不就都是“秋”打头的了吗

依据什么减少?
节快乐 又为何不在其中?

按我的代码,执行完一遍后,去掉数组的第一个元素再去执行
不就都是“秋”打头的了吗

不好意思 我还没描述清楚

减少的依据就是前后依次减少,其实就是把除了顺序所有的都排一遍。
应该有【节快乐】 我上面列的列子没写全,不好意思啊 。造成误解了。

$arr = array('中','秋','节','快','乐');$res = array();for($j=0; $j<count($arr)-1; $j++) {  for($i=0; $i<=count($arr); $i++) {    $a = join('', array_slice($arr, $j, -$i));    if($i) {      foreach(array_slice($arr, -$i) as $v) $res[] = $a.$v;    }elseif($a) $res[] = $a;  }}$res = array_unique($res);$t = array_map('strlen', $res);array_multisort($t, SORT_DESC, $res);print_r($res);
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Array
(
[0] => 中秋节快乐
[1] => 秋节快乐
[2] => 中秋节快
[3] => 中秋节乐
[4] => 节快乐
[5] => 秋节快
[6] => 秋节乐
[7] => 中秋节
[8] => 中秋快
[9] => 中秋乐
[10] => 节快
[11] => 节乐
[12] => 快乐
[13] => 秋节
[14] => 秋快
[15] => 秋乐
[16] => 中节
[17] => 中快
[18] => 中乐
[19] => 中秋
[20] => 节
[21] => 快
[22] => 乐
[23] => 秋
[24] => 中
)

$arr = array('中','秋','节','快','乐')
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实现:
中秋节快乐
中秋节快
中秋节乐
中秋节
中秋快
中秋乐
中秋
中节
中快
中乐







秋节快乐
秋节快
秋节乐
秋节
秋快
秋乐


节快乐
节快
节乐

快乐


出来的效果最好是按字数多少排序 ,由多 到 少

按照版主的方法成功了 多谢哈 

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