When building a PHP web app, should you try to fit as many PHP scripts into one file or have many different files?

Ah yes, the eternal battle of organizing your files and scripts. I'm a fan of modularity. In your case, I would create two scripts: login.

Php and signup. Php The login. Php would have everything needed to login or reset a password etc.And the signup page would include everything needed to register a new user.

There is no right or wrong way to do it but I like to keep things clean and logically organized. Going through a 700 line PHP script is no fun. You could also have one script with your if statements act as a controller which would include other files as needed for maintainability.

Example if($logging_in) then include login. Php if($signing_up) then include signup. Php Hope that helps to shed some light on your situation.

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