PHPostCam is a simple webcam app that just works. All you need is access to a server that can run PHP scripts - nothing else! The app posts a photo to your server via a HTTP request. You can adjust the interval and the upload is protected by a password.
When you download the app, you also receive a PHP script. You need to install the script on your webserver in order to use the app! Make sure the script has permissions to write a file in the same directory.