Functions: is_dir & is_file doesn't work. Why?

This is the code:

$dir = "wallpapers/";

setWatermarkToDir($dir);

function setWatermarkToDir($dir){
	$dh = opendir($dir);
	echo "Dir:  $dir <br/>";
	while (($file = readdir($dh)) !== false) {
		echo 'Unknown: ' . $file . "<br/>";
		if(strlen($file) > 2)	{
			// check to see if it is a file
			if(is_file($file) == true) {
				echo "File: $file <br/>";
				setWatermarkText('Img4u.com',$dir . $file,$dir . $file);
			}
			// check if it is a directory
			if (is_dir($file) == true)	{
				echo "Opening directory $dir . $file / <br/>";
				setWatermarkToDir( $dir . $file . '/');
			}
		}
	}
	closedir($dh);
}

PHP:

what could be the reason for this?

Also when I read the files in directory the first two is "." and "..", y is that? (This is the reason for strlen > 2)

 

The . refers to the current directory and the .. to the parent directry of your current directory. And i tried the code and everything runs fine an my server? What errors are you experiening?
// btw: take a look at scan_dir function. This functions reads a directory and return all items in it as an array so you do not need to read the directory manual and work with file handles

 

thanks I solved this. THe problem was that is didn't give the full path for the $file in the function