From string
<?php
include_once 'HtmlDocument';
use simplehtmldom\HtmlDocument;
$html = new HtmlDocument();
$html->load('<html><body>Hello!</body></html>');
From URL
<?php
include_once 'HtmlWeb';
use simplehtmldom\HtmlWeb;
$html = new HtmlWeb();
$html->load('http://www.google.com/');
From file
<?php
include_once 'HtmlDocument';
use simplehtmldom\HtmlDocument;
$html = new HtmlDocument();
$html->loadFile('test.htm');