I am incorporating a pre-existing classifieds program into my website. I would like to charge a nominal fee for ads listing items over $100. I think an if ... else statement would work best in this case with: if item "price" is >100, then bring up pop-up pay pal window, else continue normally.

I am new to php and do not know the correct syntax to use, or the correct way to insert it. Any direction or help would be greatly...