SSI vs PHP 'Include' - which ones faster?

I'm overhauling one of my sites, and was using SSI... Then heard from a buddy that using PHP includes is actually faster, and more efficient, but he had no evidence or speed test to back it up...

I tried googling it, and couldnt find anyone that had actually done tests...

Does anyone know; which is faster, php include, or SSI includes?

Thanks

 

I don't know, but I decided to do a bit of research myself. I found this thread and a couple others.

The "conclusion" seems to be that any speed difference is too small to be appreciable. And nobody agrees on which is faster or has proof either way.

 

i also agree any speed difference is negligible at best

 

thanks for the responses, exactly what I was expecting I guess... Guess I'll stick to SSI