Question

Im working on php-html-js templating shell, and i want to callback class, via ajax, as part of template html.

The view of html is something like that:

<center>this is main part</center>
<button class="btns"> class buttons </button>
<div> also main </div>
<!--[part:AJAX]-->
<div> BUT This part at first should be removed with comments, and all inside <!--[part:ANYVAR]--> till
the same comment: </div>
<!--[part:AJAX]-->

But after i need to do an oposite thing : remove all except for inside

Ps thank’s for you attention 🙂

Answer 1

This regular expression will find the comments and what’s inside:

$pattern = "/(<!--\[part:AJAX\]-->.*<!--\[part:AJAX\]-->)/ms";
preg_match($pattern, $html, $matches);
echo $matches[1];

To remove between comments, change your pattern to:

$pattern = "/(<!--\[part:AJAX\]-->(.*)<!--\[part:AJAX\]-->)/ms";

Then

echo str_replace($matches[2], "", $html);