条件简单算法[关闭]

Question

My simple brain can't seem to put this together.

I want to do a check on some code to say:

if (($limit == 0) || ($count < $limit))
//do stuff
else
//exit

The values of limit are either 0, 1 or 4. Where 0 represents "unlimited" (don't ask).

So really what I want to say is

if limit == 0 or count < limit (except when limit ==0)

What is the best way to structure that?

Answer 1

It would be helpful if you var_dump $limit and $count to make sure their types are correct. Your code is correct and when $limit is 0, it should evaluate to TRUE and the code should be run.

<?php
$limit = 0;
if ($limit == 0 || non_exisint_func()) {
  echo 'yeah';
}

http://3v4l.org/SH9mE - You will see that the second condition is not even evaluated.

Your condition will always pass if you put a NULL, (bool) FALSE or (string) 0.