PHP - 删除重复的音节词 [英] PHP - remove duplicate syllable word

问题描述

我是新的，想知道如何在php中使用正则表达式。
如果我有文字像hahaabcabcabchehehecupcupcupcup（包含重复的音节词）。

i'm new and wanna know how to using regex in php. if i have text like "haha" "abcabcabc" "hehehe" "cupcupcupcup" (contain duplicate of syllable word).

如何删除该文本？

（说 $ text =cupcupcup; ，如何使这样像 $ text =; ）

(say $text="cupcupcup";", how to make this like $text="";)

对不起，如果有同样问题（我有搜索，但不能找到描述我的问题的页面）

sorry if there is same ask (i have search, but cant find page that describe my issue)

感谢您的赞赏：）

推荐答案

尝试

$txt = preg_replace("/^(.*)(\\1+)$/", "", $txt);

字符串的开始，然后匹配该字符串的至少一个重复，然后匹配字符串的末尾。

This searches for a sequence at the start of the string, then matches at least one repetition of that string, then matches the end of the string.

例如

$txt = preg_replace("/^(.*)(\\1+)$/", "", "cupcupcup");  //=> ""
$txt = preg_replace("/^(.*)(\\1+)$/", "", "cucupcup");   //=> "cucupcup"

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