Imagejpg geeft tekens

function LoadJpeg($imgname) 
{
    $im = @imagecreatefromjpeg($imgname); /* Attempt to open */
    if (!$im) { /* See if it failed */
        $im  = imagecreatetruecolor(150, 30); /* Create a black image */
        $bgc = imagecolorallocate($im, 255, 255, 255);
        $tc  = imagecolorallocate($im, 0, 0, 0);
        imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
        /* Output an errmsg */
        imagestring($im, 1, 5, 5, "Error loading $imgname", $tc);
    } else {
    	echo "faut";
    }
    return $im;
}
imagejpeg(LoadJpeg('./upload/test.jpg'));

function LoadJpeg($imgname) 
{
    $im = @imagecreatefromjpeg($imgname); /* Attempt to open */
    if (!$im) { /* See if it failed */
        $im  = imagecreatetruecolor(150, 30); /* Create a black image */
        $bgc = imagecolorallocate($im, 255, 255, 255);
        $tc  = imagecolorallocate($im, 0, 0, 0);
        imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
        /* Output an errmsg */
        imagestring($im, 1, 5, 5, "Error loading $imgname", $tc);
    } else {
    	echo "faut";
    }
    return $im;
}
imagejpeg(LoadJpeg('./upload/test.jpg'));

function tumb_creat($file)
{
	// File and new size
	$filename = '../upload/'.$file;
	$percent = 0.5;
	$var = 100;
	
	// Content type
	header('Content-type: image/jpeg');
	
	// Get new sizes
	list($width, $height) = getimagesize($filename);
	if ($width > $height)
	{
		$newwidth = $width / ($width/$var);
		$newheight = $height / ($width/$var);
	} else {
		$newheight = $height / ($height/$var);
		$newwidth = $width / ($height/$var);
	}
	$newheight = 100;
	$newwidth = 100;
	// Load
	$thumb = imagecreatetruecolor($newwidth, $newheight);
	$source = imagecreatefromjpeg($filename);
	
	// Resize
	imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
	
	// Output
	imagejpeg($thumb);
}
tumb_creat("test.jpg");

function tumb_creat($file)
{
	// File and new size
	$filename = '../upload/'.$file;
	$percent = 0.5;
	$var = 100;
 
	// Content type
	header('Content-type: image/jpeg');
 
	// Get new sizes
	list($width, $height) = getimagesize($filename);
	if ($width > $height)
	{
		$newwidth = $width / ($width/$var);
		$newheight = $height / ($width/$var);
	} else {
		$newheight = $height / ($height/$var);
		$newwidth = $width / ($height/$var);
	}
	$newheight = 100;
	$newwidth = 100;
	// Load
	$thumb = imagecreatetruecolor($newwidth, $newheight);
	$source = imagecreatefromjpeg($filename);
 
	// Resize
	imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
 
	// Output
	imagejpeg($thumb);
}
tumb_creat("test.jpg");

header ("Content-type: image/png");

function tumb_creat($file)
{
	// File and new size
	$filename = '../upload/'.$file;
	$percent = 0.5;
	$var = 100;
	
	// Content type
	header('Content-type: image/jpeg');
	
	// Get new sizes
	list($width, $height) = getimagesize($filename);
	if ($width > $height)
	{
		$newwidth = $width / ($width/$var);
		$newheight = $height / ($width/$var);
	} else {
		$newheight = $height / ($height/$var);
		$newwidth = $width / ($height/$var);
	}
	// Load
	$thumb = imagecreatetruecolor($newwidth, $newheight);
	$source = imagecreatefromjpeg($filename);
	
	// Resize
	imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
	
	// Output
	imagejpeg($thumb);
}
tumb_creat("test.jpg");

header ("Content-type: image/png");
 
function tumb_creat($file)
{
	// File and new size
	$filename = '../upload/'.$file;
	$percent = 0.5;
	$var = 100;
 
	// Content type
	header('Content-type: image/jpeg');
 
	// Get new sizes
	list($width, $height) = getimagesize($filename);
	if ($width > $height)
	{
		$newwidth = $width / ($width/$var);
		$newheight = $height / ($width/$var);
	} else {
		$newheight = $height / ($height/$var);
		$newwidth = $width / ($height/$var);
	}
	// Load
	$thumb = imagecreatetruecolor($newwidth, $newheight);
	$source = imagecreatefromjpeg($filename);
 
	// Resize
	imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
 
	// Output
	imagejpeg($thumb);
}
tumb_creat("test.jpg");