Does include and if slows down PHP?
I'm writing some code for an assessment and trying to keep my page in various modules (like header, footer etc) that I include in a page to create the final version. I have some forms that root back to the same page and I have some ifs to catch if some session variables are set. Could that slow down the page for, lets say, 5-10 secs of loading a pretty simple page?

Could they have made something to the PHP interpreter from the department to keep some load off because of the simultaneous students uploading files, testing etc?

Thanks
Does include and if slows down PHP?
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I'm writing some code for an assessment and trying to keep my page in various modules (like header, footer etc) that I include in a page to create the final version. I have some forms that root back to the same page and I have some ifs to catch if some session variables are set. Could that slow down the page for, lets say, 5-10 secs of loading a pretty simple page?

Could they have made something to the PHP interpreter from the department to keep some load off because of the simultaneous students uploading files, testing etc?

Thanks