Using GD images with templates

[Anon]

The site I'm working on is completely templatized. All the php is on one page, and all the html is on another page with the same name.(different extensions though)
Image.php and Image.html for example

Normally to set a variable in the html, I put a placeholder within curly braces where I want it to go: {image}
And in the php use $t->set_var('image', $image); to set it.

I've created a graph in php using the GD image libraries; how do I get it to output to where I want within the html?

[Anon]

You'd use GD to create the image and save it somewhere as a file (perhaps use tmpname() to make a filename for it). Then replace the {image} placeholder with an <img> tag with the appropriate src attribute.
To keep things tidy wherever you're putting these graphs, maybe use unlink() at script's end to delete them. Of course, they'd have to be generated all over again next time the page is hit, but if you're generating them on the fly anyway that's no extra burden.