How to make a collage of profile pics from facebook in php?

I am able to retrieve all of my friend's profile pics.

There are some apps where the some profile pics are stitched together and uploaded into the user's photo album.

I have absolutely no problems retrieving the images or uploading images. I 开发者_运维知识库have no idea how to glue together these pics.

Any suggestions?

Maybe you could use imagecopy() or even better imagecopyresized() and paste them together?

Is this what you were aiming at?