HTML DOM parser for PHP

A Simple HTML DOM parser written in PHP let you manipulate HTML in a easy way with selectors just like CSS or jQuery.

This is modern version of Simple HTML DOM. You can install by using Composer and import to your project as a package.

Features

• Parse and modify HTML document.
• Find tags (elements) on HTML with selectors just like jQuery.
• Extract contents from HTML in a single line.
• Export elements or a special node to a single file.
• Supports HTML document with invalid structure.

Installation

You can use Composer to install this package to your project by running following command:

composer require zenthangplus/html-dom-parser

The minimum PHP version requirement is 5.6. If you are using PHP < 5.6, please use the original version.

Usage

The following example is the simple usage of this package:

<?php
$dom = \HTMLDomParser\DomFactory::load('<div class="container"><div class="anchor"><a href="#">Test</a></div></div>');
$a = $dom->findOne('.container a');
echo $a->text();
// Output: Test

DOM

Dom is the root Node of the HTML document.

You can load DOM from string or file.

<?php
$dom = \HTMLDomParser\DomFactory::load('<div>Test</div>');

<?php
$dom = \HTMLDomParser\DomFactory::loadFile('document.html');

NODE

Node is simply an HTML element that described as an object.

You can also load any Node (similar to Dom):

<?php
$node = \HTMLDomParser\NodeFactory::load('<div><a href="#">Test</a></div>');

<?php
$node = \HTMLDomParser\NodeFactory::loadFile('document.html');

Traversing the DOM

By using selectors like jQuery or CSS, you can traverse easy in the Dom or even in a Node.

Example:

<?php
$dom = \HTMLDomParser\DomFactory::loadFile('document.html');
$dom->find('div');
$dom->find('#container');
$dom->find('#container .content ul>li a.external-link');
$dom->find('#container .content ul>li a[data-id=link-1]');

Similar to Dom, a Node also traversable:

<?php
$dom = \HTMLDomParser\DomFactory::loadFile('document.html');
$node = $dom->findOne('#container .content ul>li');
$anchorNode = $node->findOne('a.external-link');

// Even traverse in a separate Node
$node = \HTMLDomParser\NodeFactory::load('<ul class="list"><li>Item 1</li><li>Item 2</li></ul>');
$node->find('ul.list li');

List of supported selectors:

Selector example	Description
div	Find elements with the div tag
#container	Find elements with the container id
.wrapper	Find elements with the wrapper class
[data-id]	Find elements with the data-id attribute
[data-id=12]	Find elements with the attribute data-id=12
a[data-id=12]	Find anchor tags with the attribute data-id=12
*[class]	Find all elements with class attribute
a, img	Find all anchors and images
a[title], img[title]	Find all anchors and images with the title attribute
#container ul	By using space between selectors, you can find nested elements
#container>ul	By using > between selectors, you can find the closest children
#container, #side	By using , between selectors, you can find elements by multiple selectors in one query
#container div.content ul>li, #side div[role=main] ul li	You can combine selectors in one query

List of function you can use with above selectors:

• find() Find elements
• findOne() Find one element

Specific find functions:

• getElementById() Get a element by ID
• getElementByTagName() Get a element by tag name
• getElementsByTagName() Get elements by tag name

Accessing the node's data:

• text() Get the text contents
• getAttributes() Get attributes
• getAttribute() Get a attribute
• hasAttribute() Check element has a attribute
• hasChild() Check element has child
• innerHtml() Get inner HTML
• outerHtml() Get outer HTML
• innerXml() Get inner XML
• Get node's HTML

Modifying the Node's data

• setAttribute() Set a attribute
• removeAttribute() Remove a attribute
• appendChild() Append child
• save() Save DOM or even a node

Traversing the Node tree

• getChild() Get child element
• getChildren() Get all children
• getFirstChild() Get first child
• getLastChild() Get last child
• getNextSibling() Get next sibling
• getPrevSibling() Get previous sibling
• findAncestorTag() Find ancestor tag