[SOLVED] Function variables :S

[rockinaway]

  
        var $testvar;


        function check_test()
        {
                if (!isset($this->testvar) || $this->testvar = '') echo 'Nothing set!';
        }


function test()
	{

			$this->testvar = 'Test';

			return $this->testvar;
		}		
	}

 

When I try this mt check_test() function always returns the error for the variable being empty or not present, eventhough I have it set in the function test() when it is called.

 

Even if I put test() before check_test() the same thing happens.. what could be the problem?

[emehrkay]

$this->testvar = ''

 

will always be true

 

you mean == or even better ===

[rockinaway]

Sorry my mistake.. missed ! New code.. still problems.. explained below

 

        var $testvar;

        
function test()
{

			$this->testvar = 'Test';

			return $this->testvar;
		}		
}

        function check_test()
        {
                if (!isset($this->testvar) || $this->testvar != '') echo 'Nothing set!'.$this->testvar;
        }

 

This the new code.. but I found a problem. Eventhough $testvar is a global variable.. as you can see it is set in test()... however if I try retrieving in it check_test() nothing is returned..

 

If I do the following:

 

        function check_test()
        {
                $this->testvar = 'sdasd';
                if (!isset($this->testvar) || $this->testvar != '') echo 'Nothing set!'.$this->testvar;
        }

 

Then it returns the value when it is in it's own function.. but still not the values set in other functions..

 

Why is this?

[emehrkay]

if (!isset($this->testvar) || $this->testvar != '')

 

this says if testvar isnt set or testvar is not eqal to '' <-- those are opposite

[rockinaway]

Now trying:

 

(!isset($this->testvar))

 

Still doesn't return the variable as I mentioned above..

[emehrkay]

just try echo $this->testvar;

 

or you could initially define it as false and just do

 

if(!$this->testvar) whatever

[rockinaway]

It still doesn't get the value set in another function though...

[rockinaway]

Fixed