About php addition

Question

Just want to know that should i put space between the number and addition sign like this 4 + 5 or just go without putting space like this 4+5. I mean is there any difference between them.

Answer 1

It depends on how readable you want your code to be.

Here's a brief overview of what you should be trying to do when writing good, well-formatted code.

Answer 2

There are no differences in terms of the result. However, coding standards (or simply personal preference if you are working alone) may dictate that you use one form in preference to another.