[RESOLVED] function, increase a number in variable?

i'm trying to make a number increase inside a function, but i got a problem, the number won't go higher then 1 and i can't figure this out... this is the code i've got so far:

PHP Code:

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function increase($test)
{
global $nr;// global variable
$nr++;
echo $test . "<br />";
echo $nr . "<br />";
}

increase("test1");
increase("test2"); 


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edit i figured out a solution...
i just needed to add global $nr; to the code.

.. from looking at your code, I have no clue what you're trying to do. you're passing in a string called $test, and then you're incrementing a random variable that doesn't exist ($nr). this variable only exists for as long as your function runs (which is 3 lines of code), and so it goes from not existing, to being initialized when you try to increment it, to then being set to 0 by default, and then being incremented. thus, $nr is equal to 1 when you echo it.

like, are you trying to make it so that $nr is increased everytime you call the function? this is really the only logical conclusion I can come to. you don't seem to know about variable scope, and so I suggest you first read about it.

after you've finished reading, you can do something like:

PHP Code:

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<?php
  $increase_calls = 0; //initialize

  function increase($string){
    global $increase_calls; //bring $increase_calls into our scope
    $increase_calls++;

    echo $increase_calls . " => " . $string . "\n";
  }

  increase("test1");
  increase("test2");
  increase("test3");
?>

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the script above should output:

Code:

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1 => test1
2 => test2
3 => test3

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