Automatic images/thumbnails

hi I’m creating a site and was wondering if theres any type of php coding that will make thumbnail images automatically and place it into your website automatically.

Like lets say I make a folder called images and everytime I add image files to that folder the php script would automatically grab the images added and post it onto the website right away.

Use phpThumb phpThumb() - The PHP thumbnail generator

hey thanks but I was just wondering does this grab the images you load into the file and automatically post it to the site without you having to add them in yourself?