How much server overhead there is when PHP if statements are evaluated, i.e. memory consumption and CPU usage? For example, if I have a WordPress blog and use a lot of if statements to render each post summary on the home page, is this going to require a great deal more server resources if the home page starts getting high traffic? And, on pages where many posts are listed (i.e. category pages) , it seems like this could become an issue.

Or, is this something I shouldn't even be worrying about?

Or, is this something I shouldn't even be worrying about?

Gotcha

Evaluating conditions and arguments is the heart of programming logic. But you can streamline your logic flow by assinging your values to varibles to help aid in redundant evaluations from methods and functions that can take up valuable resources.

For example, using logic operator procedence, you can streamline a conditional statement:

PHP Code:

// Not streamlined:
if (resource_intensive_method() OR (!resource_intensive_method() AND $a == $b))
 
 
// Streamlined:
if ($value = resource_intensive_method() OR (!$value AND $a == $b))