How to detect where an html element was created?

Question

PHP

There is a site, and on one of the pages there is an insecure element - a picture. That is, it was not loaded via https, most likely due to the fact that the address to it is spelled out completely in the http://..../img.png style. I’ve been suffering for the second day but I can’t find where it is registered, I searched in the file for which the page opens, but there it looks like

<?php echo stripslashes($row_multi['addtocart']);?>

. As I understand it, row_multi is some kind of variable, but I don’t know how to understand where it leads.

Answer 1

https://www.jetbrains.com/phpstorm/help/navigating...
It's easier to contact a freelancer.

Answer 2

TotalCommander -> Alt + F7 -> FIND TEXT