PHP and Gd problems

[silasl]

Hi all, I'm having a probblem with a GD resize / crop script and i'm wondering if anyone can help me.

The code is supposed to take an uploaded image, resize it to the correct width (532px), retaining its aspect ration, and then crop it (to 532 x 100). Currently it crops it fine and it's doing some resizing but it's ignoring the dimensions i'm asking for and just shrinking it a little bit, it's also distorting the image...

Can anyone see what's wrong?

$rWidth = 532;
$rHeight = 100;
$name = ( $_FILES['userfile']['name'] );
if ($name){
		$target_path = "../../images/page_images/";
		$target_path = $target_path . basename( $_FILES['userfile']['name']);
		move_uploaded_file($_FILES['userfile']['tmp_name'], $target_path);
		$dimensions = getimagesize($target_path); 
		if ($dimensions[0] != $rWidth && $dimensions[1] != $rHeight){
			$canvas = imagecreatetruecolor($rWidth,$rHeight);
			$piece = imagecreatefromjpeg($target_path);
			$width = $dimensions[0]; 
			$height = $dimensions[1]; 

		$newWidth = $rWidth;  
		$newHeight = round($rWidth/($width/$height));

		imagecopyresized($canvas, $piece, 0, 0, 0, 0, $rWidth, $rHeight, $newWidth, $newHeight);
		imagejpeg($canvas,$target_path,90);
	}
}

Thanks in advance for your help.

Silas

[rsmith]

try using imagecopyresampled() instead of imagecopyresized()

[Weedpacket]

imagecopyresampled would give a better result, but your description: "resize ... then crop it" doesn't match what's in the code: there is only one operation that is doing anything to the size. I'd expect two: one to resize (rather, resample), and another to crop (imagecopy, probably).

[silasl]

Thanks guys. imagecopyresampled has sorted out the distortion issue.