README

HTML5DOMDocument extends the native DOMDocument class in PHP. It fixes some long-standing issues and introduces additional, modern functionality for handling HTML5 documents.

Why Use HTML5DOMDocument?

Preserves HTML entities that the native DOMDocument does not handle properly.
Preserves void tags like <input> or <br>, which DOMDocument tends to mishandle.
Allows inserting HTML code correctly into the document, ensuring that head and body elements are placed in their respective sections.
Enables CSS-style selectors for querying the DOM:
- Supported selectors include *, tagname, tagname#id, #id, tagname.classname, .classname, multiple class selectors, attribute selectors, and complex selectors like div p, div > p, div + p, p ~ ul, and div, p.
Element manipulation with:
- element->classList for manipulating classes
- element->innerHTML for working with the contents of an element
- element->outerHTML for manipulating an entire element as a string
Efficient handling of duplicate elements and IDs with advanced HTML insertion and validation.

Installation via Composer

Install via Composer with the following command:

composer require "softcreatr/html5-dom-document-php:3.*"

Features & Improvements

ClassList Support: The library adds support for manipulating classes of elements through the classList property, making it easier to work with CSS class attributes.
Enhanced Query Selectors: Use advanced CSS-like selectors for querying elements from the DOM, such as:
- div > p (direct child)
- div + p (adjacent sibling)
- p ~ ul (general sibling)
- [attribute], [attribute=value], etc.
HTML Insertion: It allows inserting fragments of HTML into the document, intelligently placing them in the correct location (e.g., scripts into <head>, content into <body>).
Custom Insert Targets: Define custom targets within the document for precise HTML insertion.

Documentation

Comprehensive documentation is available in the repository.

Examples

Basic Usage

Use HTML5DOMDocument just like the native DOMDocument:

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

$dom = new \SoftCreatR\HTML5DOMDocument\HTML5DOMDocument();
$dom->loadHTML('<!DOCTYPE html><html><body>Hello World!</body></html>');
echo $dom->saveHTML();

Querying with CSS Selectors

$dom = new \SoftCreatR\HTML5DOMDocument\HTML5DOMDocument();
$dom->loadHTML('<!DOCTYPE html><html><body><h1>Hello</h1><div class="content">This is some text</div></body></html>');

echo $dom->querySelector('h1')->innerHTML;  // Outputs: Hello
echo $dom->querySelector('.content')->outerHTML;  // Outputs: <div class="content">This is some text</div>

Inserting HTML Code

$dom = new \SoftCreatR\HTML5DOMDocument\HTML5DOMDocument();
$dom->loadHTML('
    <!DOCTYPE html>
    <html>
        <head><style>body { color: red; }</style></head>
        <body><h1>Hello</h1></body>
    </html>
');

$dom->insertHTML('
    <html>
        <head><script>alert("JS Script")</script></head>
        <body><div>This is some text</div></body>
    </html>
');

echo $dom->saveHTML();
// Properly merges new elements into the existing head and body.

Manipulating Class Attribute

$dom = new \SoftCreatR\HTML5DOMDocument\HTML5DOMDocument();
$dom->loadHTML('<div class="class1"></div>');

$div = $dom->querySelector('div');
$div->classList->add('class2');
$div->classList->remove('class1');

echo $div->getAttribute('class');  // Outputs: "class2"

Custom Insert Targets

$dom = new \SoftCreatR\HTML5DOMDocument\HTML5DOMDocument();
$dom->loadHTML('<html><body><div id="main"></div></body></html>');

$mainDiv = $dom->querySelector('#main');
$mainDiv->appendChild($dom->createInsertTarget('name1'));

$dom->insertHTML('<div id="new-content">New content</div>', 'name1');
echo $dom->saveHTML();

License

This project is licensed under the MIT License. See the license file for more details.

Contributing

Contributions are welcome! Feel free to open issues or submit pull requests to improve this library. Let's collaborate to make it even better.

Authors

Original library by Ivo Petkov.
V3 and ongoing maintenance by Sascha Greuel.

softcreatr/html5-dom-document-php

包简介

README 文档