How many lines of PHP code is too many for one file?

Question

I\'m creating a PHP file that does 2 mysql database calls and the rest of the script is if statements for things like file_exists and other simple variables. I have about 2000

Answer 1

2000 lines of code in a single file is not exactly bad from a computer point of view but in most situations is probably avoidable, take a look into the MVC design pattern, it'll help you to better organize your code.

Also, bear in mind that including (a lot of) files will slow down the execution of your code.