How do you parse and process HTML/XML in PHP and extract information from it?

see the article/answerHow do you parse and process HTML/XML in PHP?How can one parse HTML/XML and extract information from it? stackoverflow.com/questions/3577641/how-...cess-html-xml-in-phpHow to modify HTML elements:// Create DOM from string 

• $html = str_get_html('<div id="hello">Hello</div><div id="world">World</div>'); 

• $html->find('div', 1)->class = 'bar'; 
• $html->find('div[id=hello]', 0)->innertext = 'foo'; 
• echo $html; 

Extract content from HTML:// Dump contents (without tags) from HTML echo file_get_html('www.google.com/')->plaintext; 

How to get HTML elements: 
 

• // Create DOM from URL or file 

• $html = file_get_html('www.example.com/'); 

•  

• // Find all images 

• foreach($html->find('img') as $element) 

• echo $element->src . '<br>'; 

•  

• // Find all links 

• foreach($html->find('a') as $element) 

• echo $element->href . '<br>';