[php] readfile() function question

[Johannes de Le?n]

I would like to know if the readfile() funtion, while reading from some other website, if it sends the file directly to the user or if it parses it first.

I own two websites. One without php, only has 50 mb but unlimited bandwidth, so I would like to store some images there, and then be accessed by a php script that randomizes wich picture to show, and then show it in my other webhost supporting php, but with limited bandwidth.

I would prefer to use the readfile() in order to hide the real address of the picture.

Help, anyone?

Thanks in advance.