JPG resizer

I made a simple resize class before I decided to just use ImageMagick for my project.

class ImageResize {
	function ImageResize($file, $height, $width, $output) {
		$oldImg = imagecreatefromjpeg($file);
		$oldWidth = imagesx($oldImg);
		$oldHeight = imagesy($oldImg);
		
		if ($oldWidth > $oldHeight) { 
			$newWidth = $width;
			$newHeight = $oldHeight * ($height / $oldWidth); 
		} 
		if ($oldWidth < $oldHeight) { 
			$newWidth = $oldWidth * ($width / $oldHeight); 
			$newHeight = $height; 
		} 
		if ($oldWidth == $oldHeight) { 
			$newWidth = $width;
			$newHeight = $height;
		}
		
		$newImg = imagecreatetruecolor($newWidth, $newHeight);
		imagecopyresampled($newImg, $oldImg, 0, 0, 0, 0, $newWidth, $newHeight, $oldWidth, $oldHeight);
		return imagejpeg($newImg, $output);
	}
}

PHP:

(It only resizes JPEGs... I don't think I ever got around to testing it, but if anything is wrong should be something very minor)

You would use it like so:

$img = new ImageResize(INPUT_FILE, NEW_WIDTH, NEW_HEIGHT, OUTPUT_FILE);

PHP:

It keeps the aspect ratio of the original file.

Just thought I would put it out there if anyone had any sort of a use for this... I know things like this already exist but this is just a simple, unbloated class to resize an image (heck, it doesn't need to even be a class.. haha)