unsetting a static variable

Nate

i'm having a problem with unsetting a static variable in a class.

as an example i have something like this:

class test {
   function keepCount($mycount = "") {
      static $count = 0;
      if($mycount == "") {
         return $count;
      } else {
         return $count += $mycount;
      }
   }
}

$test = new test();
$test->keepCount(1);
$test->keepCount(1);
$test->keepCount(1);
echo $test->keepCount(); //returns 3
unset($count);
$test->keepCount(1);
echo $test->keepCount(); //returns 5

i need that last one to return 1...

Does this make sense? I have tried unsetting $count inside the class itself (for example each time $mycount == "") but it never gets unset.

Any advice, much appreciated. Thanks for reading!

Weedpacket

Static variables only exist within the function in which they are declared. If you want to do anything to $count, it has to be done inside the keepCount() function.

But why are you using a static variable instead of a property?

Nate

Thanks for the info. I just assumed making it static would be the best way to do it. How would you accomplish that using a property? Can you modify my example?

Thanks

DonChris

class test {
   var $count =0;
   function keepCount($mycount = "") {
      if($mycount == "") {
         return $this->count;
      } else {
         return $this->count += $mycount;
      }
   }
   function reset_count() {
		$this->count=0;
   }
}

$test = new test();
$test->keepCount(1);
$test->keepCount(1);
$test->keepCount(1);
echo $test->keepCount(); //returns 3
$test->reset_count();
$test->keepCount(1);
echo $test->keepCount(); //returns 1

DonChris

a static variable in OOP is for example used to achieve
something like a counter that is the SAME for all objects.
this is sometimes useful when you f.e. want to know how many objects where 'made'...
the post that i sent let's $counter be DIFFERENT for all
objects created with this class (of course this depends on the counters value...)

Nate

Thank you, that makes sense, and fixed my issue.