How to save the content of a div to your site using php

Question

I have developed a HTML editor using codemirror. I am now searching for a way to let users save the code what is inside the div to the site's server, so they can view their site. I searched on the internet and found this on the internet:

<?php 
// Start the buffering // 
ob_start(); 
?> 
Your page content bla bla bla bla ... 
<?php 
echo '1'; 
// Get the content that is in the buffer and put it in your file // 
file_put_contents('yourpage.html', ob_get_contents()); 
?>

Source: Save current page as HTML to server

But now i am on a point: how can i save the content of the div into a html file on my server? I searched and found that on the line where it saids: "your page content bla bla bla bla" you have to use "", but it doesn't work. I am new to php so help is appreciated. Thanks in advance

Answer 1

use PHP Simple HTML DOM Parser read element of page by id, class & ...