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htmldiff php

作者:饮尽孤单   发布日期:2025-01-07   浏览:870

HTMLDiff is a PHP library that allows you to compare two HTML documents and highlight the differences between them. It can be useful for comparing different versions of a webpage or for detecting changes in dynamically generated content.

To use HTMLDiff in PHP, you first need to install it using Composer. Open your terminal and navigate to your project directory, then run the following command:

composer require cognitree/html-diff

Once the installation is complete, you can start using HTMLDiff in your PHP code. Here's an example:

<?php
require_once 'vendor/autoload.php';

use Cognitree\HtmlDiff\HtmlDiff;

$oldHtml = "<p>This is the old content.</p>";
$newHtml = "<p>This is the new content.</p>";

$htmlDiff = new HtmlDiff();
$diff = $htmlDiff->diff($oldHtml, $newHtml);

echo $diff;
?>

In this example, we create a new instance of the HtmlDiff class and use its diff method to compare the old and new HTML content. The diff method returns the differences between the two documents as HTML, with added and deleted content highlighted.

You can customize the output of the diff method by passing additional options as an array. For example:

$diff = $htmlDiff->diff($oldHtml, $newHtml, [
    'insClass' => 'added',
    'delClass' => 'deleted',
]);

echo $diff;

In this case, the added content will be wrapped in <ins class="added"> tags, and the deleted content will be wrapped in <del class="deleted"> tags.

HTMLDiff also provides other methods for comparing HTML documents, such as diffToChars and diffToHtml. You can find more information and examples in the library's documentation.

Note that HTMLDiff is a third-party library and may have its own licensing terms and limitations. Make sure to review and comply with the library's license before using it in your project.

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