If you run a business website, you may occasionally change how your site is structured—a change that requires a PHP redirect.

Illinois head coach Brad Underwood, left, reacts during the first half against Houston in the Sweet 16 of the NCAA college basketball tournament Thursday, March 26, 2026, in Houston. Illinois guard ...

gets called, you normally cast the parameters to native variables, and you start running your own fast algorithm. And you don't want to call other PHP functions from that moment on.