exit, exit(), exit(0), die(), die(0) - How to exit script

Question

I believe that all of these (and even die() or die(0)) are identical. If they are not identical, which is preferred for exiting a script successfu

Answer 1

die(); is just a synonym for exit(); and is functionally identical.

The standard way is to use exit code zero to signify success, and anything else to denote an error condition.