I want to make an Image script where when someone views an image the size is recorded in the database(MySQL). So basically the script is monitoring the bandwidth on an image, and when the image reaches its bandwidth limit it displays a different image. How is this done? I have experimented with files in the past but most were un successful.

well it sounds simple enougth :
you use the filesize function to get the picture filesize.
the logic is something like this :
$curent_image='asdf';
$bandwidth=check_bandwidth($curent_image); // a function that will check the curent image bandwidth ... a simple querry
if ($bandwidth<'99999'){
echo 'html_image_tags';
add_bandwidth($curent_image,filesize($curent_image ));
} else {
reset_bandwidth($curent_image);
next_image
}

hope you understand

Close, but i want to make it so that if i wanted to post the image here with the <img src="....."> code or on a web page they could.

then you could make a script ... gen_image.php that will generate images acording to you're rules

do you have a little example code? i dont usually do images with php.