The modern DOM API for PHP 7 projects.

Built on top of PHP's native DOMDocument, this project provides access to modern DOM APIs, as you would expect working with client-side code in the browser.

Performing DOM manipulation in your server-side code enhances the way dynamic pages can be built. Utilising a standardised object-oriented interface means the page can be ready-processed, benefitting browsers, webservers and content delivery networks.

Example usage: Hello, you!

Consider a page with a form, with an input element to enter your name. When the form is submitted, the page should greet you by your name.

This is a simple example of how source HTML files can be treated as templates. This can easily be applied to more advanced template pages to provide dynamic content, without requiring non-standard techniques such as {{curly braces}} for placeholders, or echo '<div class='easy-mistake'>' . $content['opa'] . '</div>' horrible HTML construction from within PHP.

Source HTML (`name.html`)

<!doctype html>
<h1>
	Hello, <span id="your-name">you</span> !
</h1>

<form>
	<input name="name" placeholder="Your name, please" required />
	<button>Submit</button>
</form>

PHP used to inject your name (`index.php`)

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

$html = file_get_contents("name.html");
$document = new \Gt\Dom\HTMLDocument($html);

if(isset($_GET["name"])) {
	$document->getElementById("your-name")->textContent = $_GET["name"];
}

echo $document->saveHTML();

Features at a glance

DOM level 4 classes:
- HTMLDocument
- Element
- HTMLCollection
- and more extended DOM classes
Standardised traits to add functionality in accordance with W3C
Reference elements using CSS selectors via querySelector(All)
Add/remove/toggle elements' classes using ClassList
Element Nodes within the document traversable with W3C properties:
Element::remove() to detach it from the document
Add elements around another using Element::before() and Element::after()
Replace an element in place using Element::replaceWith()
Standard collection properties on the HTMLDocument:
- anchors
- forms
- image
- links
- scripts
- title

Page template features

This repository is intended to be as accurate to the DOM specification as possible. An extension to the repository is available at https://php.gt/domtemplate which adds page templating through custom elements and template attributes, introducing serverside functionality similar to that of WebComponents.

Zyigh/Dom-1