title: search and delete unused images in articles with php
body: <p>I have been working on some project and through time it got messed up with images which I tested it, so now I want to make a script which is going to search in articles img tags and find the img name (artiles are stored in mysql with attribute 'text') after scanning the folder where images are stored if they are not in any article included then to delete those images (unused images). Has anyone done this before so I could see an example or any good approach about this case?</p>