Can't clear variable

[ueon]

Basically, I'm using $num_file to return the number of files in a directory, but they're just building up. (as you can see in the source code of http://sunient.ca/charmsky/mjackets.php?page=1).

 

The problem is in the last part of the code.

 

<?php
  	function num_files($dir, $recursive=false, $counter=0) 
{
    		static $counter;
    		if(is_dir($dir)) {
      			if($dh = opendir($dir)) {
        			while(($file = readdir($dh)) !== false) {
          				if($file != "." && $file != "..") {
              					$counter = (is_dir($dir."/".$file)) ? num_files($dir."/".$file, $recursive, $counter) : $counter+1;
          				}
        			}
        			closedir($dh);
      			}
    		}
    		return $counter;
  	}
/*
$con = mysql_connect("localhost", "", "");

if (!$con)
{
	die("Could not connect: ' . mysql_error())";
}

mysql_select_db("db" , $con);

$total = mysql_query("SELECT * FROM total"); //100

*/
$total = 8;
$count_thumb = 1;
$count_group = 1;
$div_top = 300;
$div_left = 200;
$max = 20;
$totalpages = $total / $max;


$page = $_GET['page'];

if(empty($page) || $page == 0)
{
	$count_thumb = 1;
	$count_group = 1;
}

if ($page != 1 || $page != 0)
{
	$count_thumb = (($page - 1) * 20) + 1;
	$count_group = (($page - 1) * 20) + 1;
}

//positions the thumbnails
while ($count_thumb <= $total)
{
	echo "<div style='position: absolute; top: ".$div_top."px; left: ".$div_left."px;'>\n";
	echo "<a href='products/men/jackets/detail/".$count_thumb."/1.jpg' rel='lightbox[".$count_thumb."]'><img src='products/men/jackets/thumb/".$count_thumb.".jpg' \></a>\n";	
	echo "</div>\n";

	$div_left = $div_left + 150;
	if ($div_left == 800)
	{
		$div_left = $div_left - 600;
		$div_top = $div_top + 150;
		echo "<BR \>\n";
	}

	$count_thumb = $count_thumb + 1;
}

while ($count_group <= $total)
{	
	$file_count = 2;
	$num_file = num_files("products/men/jackets/detail/$count_group");

	while ($file_count <= $num_file)
	{
		echo "<a href='products/men/jackets/detail/".$count_group."/".$file_count.".jpg' rel='lightbox[".$count_group."]'></a>\n";
		$file_count = $file_count + 1;
	}

	$count_group = $count_group + 1;
}
?>

[imperium2335]

I clear my variables like this:

 

$var = NULL ;

 

or maybe you can do this:

 

if($var > 0)

{

$var = 0 ;

}

 

but im still a noob.