PHP - How to extract content from a div via Regex

Question

I have a string of HTML where some inherited div present and I need to extract only the top level div, for example-

$html= '<div class="test">
            <div>
                <div>Some text 1</div> 
                <div>Image content 2</div>
            </div>
            <div>
                <div>Some text 2</div> 
                <div>Image content 2</div>
            </div>
            ....
        </div>';
$regex ='/<divsclass=["']test["']>.*?</div>/is';
preg_match($regex, $html, $matches);    

But the real problem is the result shows me only the first Some text 1</div>, Please help me to figure out where I made the mistakes?

I need to grab the entire class test 'div' as a result matches.

<div>
    <div>Some text 1</div> 
    <div>Image content 2</div>
</div>
<div>
     <div>Some text 2</div> 
     <div>Image content 2</div>
</div>

Answer 1

The following regex should do it :

(?s)(?<=<divsclass="test">
).*(?=</div>)

see demo / explanation

PHP

<?php
$regex = '/(?s)(?<=<divsclass="test">
).*(?=</div>)/';
$str = '<div class="test">
            <div>
                <div>Some text 1</div>
                <div>Image content 2</div>
            </div>
            <div>
                <div>Some text 2</div>
                <div>Image content 2</div>
            </div>
            ....
        </div>';
preg_match($regex, $str, $matches);
print_r($matches);
?>