PHP中的按字符排列的字符串差异 [英] Character-wise string diff in PHP

问题描述

简而言之，我正在寻找PHP中的google-diff-match-patch。

In short I am looking for something like google-diff-match-patch in PHP.

我在SO上也看到过类似的问题，在此处处提供的算法，但它们均失败：

I have had a look at some similar questions at SO, and also at the algorithm provided here, but all of them fail:

diff("draßen", "da draußen")

应该不给出

<del>draßen</del> <ins>da draußen</ins> 

（这对我来说有点愚蠢，因为我想比较文件名），但是< a href = http://neil.fraser.name/software/diff_match_patch/svn/trunk/demos/demo_diff.html rel = nofollow noreferrer>（在此处尝试）

(which is kind of stupid for my purpose, because I want to compare file names), but (try here)

<ins>da </ins>dra<ins>u</ins>ßen

PHP中是否有此功能的代码段？不幸的是，我不能使用（即安装）外部软件包。

Is there a code snippet in PHP that does this? Unfortunately, I cannot use (i.e. install) external packages.

推荐答案

https://github.com/gorhill/PHP-FineDiff 支持按字符区分，并且可以呈现HTML中的差异

https://github.com/gorhill/PHP-FineDiff supports character-wise diff and can render the differences in HTML

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