Simple PHP question

[Ry@n]

Hi all, i have a shop running an online cart, but id like to edit the index.php and insert a link.

This is an example of what i mean:
CLICK ME TO GO TO FORUMS

But i want it in php code ? (if that makes sense)

Also, needs to be centered and size 3.
I tried google but had no luck, all it give me was millions of scripts.
Thanks

P.s. does anyone know a good site where i can learn such simple php coding ?

 

[Ry@n]

So i can use the exact same as what i put as an example ?

 

[Ry@n]

Thanks
EDIT: Can you tell me how i would insert a picture ? that linked to a URL.

I appreciate it, i will learn one day.