<?php
	function createthumb($name, $filename, $new_w, $new_h)
	{

		$width  = getWidth($filename);
		$height = getHeight($filename);

		if ($width > $height) {
			if ($width > $new_w) {
				$scale = $new_w / $width;
			} elseif ($height > $new_h) {
				$scale = $new_h / $height;
			} else {
				$scale = 1;
			}
		} else {
			if ($height > $new_h) {
				$scale = $new_h / $height;
			} elseif ($width > $new_w) {
				$scale = $new_w / $width;
			} else {
				$scale = 1;
			}
		}
		$name = resizeImage($filename, $width, $height, $scale);

	}


//You do not need to alter these functions
	function getHeight($image)
	{
		$size   = getimagesize($image);
		$height = $size[1];
		return $height;
	}

//You do not need to alter these functions
	function getWidth($image)
	{
		$size  = getimagesize($image);
		$width = $size[0];
		return $width;
	}

	function resizeImage($image, $width, $height, $scale)
	{
		list($imagewidth, $imageheight, $imageType) = getimagesize($image);
		$imageType      = image_type_to_mime_type($imageType);
		$newImageWidth  = ceil($width * $scale);
		$newImageHeight = ceil($height * $scale);
		$newImage       = imagecreatetruecolor($newImageWidth, $newImageHeight);

		// Make the background transparent
		if ($imageType == 'image/gif') {
			$transparent = imagecolorallocate($newImage, 0, 0, 0);
			imagecolortransparent($newImage, $transparent);
		} else {
			imagealphablending($newImage, false);
			imagesavealpha($newImage, true);
			$trans_colour = imagecolorallocatealpha($newImage, 0, 0, 0, 127);
			imagefill($newImage, 0, 0, $trans_colour);
		}

		switch ($imageType) {
			case "image/gif":
				$source = imagecreatefromgif($image);
				break;
			case "image/pjpeg":
			case "image/jpeg":
			case "image/jpg":
				$source = imagecreatefromjpeg($image);
				break;
			case "image/png":
			case "image/x-png":
				$source = imagecreatefrompng($image);
				break;
		}
		imagecopyresampled($newImage, $source, 0, 0, 0, 0, $newImageWidth, $newImageHeight, $width, $height);

		switch ($imageType) {
			case "image/gif":
				imagegif($newImage, $image);
				break;
			case "image/pjpeg":
			case "image/jpeg":
			case "image/jpg":
				imagejpeg($newImage, $image, 100);
				break;
			case "image/png":
			case "image/x-png":
				imagepng($newImage, $image);
				break;
		}

		//chmod($image, 0775);
		return $image;
	}

	function resizeThumbnailImage($thumb_image_name, $image, $width, $height, $start_width, $start_height, $scale)
	{
		list($imagewidth, $imageheight, $imageType) = getimagesize($image);
		$imageType = image_type_to_mime_type($imageType);

		$newImageWidth  = ceil($width * $scale);
		$newImageHeight = ceil($height * $scale);
		$newImage       = imagecreatetruecolor($newImageWidth, $newImageHeight);

		// Make the background transparent
		if ($imageType == 'image/gif') {
			$transparent = imagecolorallocate($newImage, 0, 0, 0);
			imagecolortransparent($newImage, $transparent);
		} else {
			imagealphablending($newImage, false);
			imagesavealpha($newImage, true);
			$trans_colour = imagecolorallocatealpha($newImage, 0, 0, 0, 127);
			imagefill($newImage, 0, 0, $trans_colour);
		}

		switch ($imageType) {
			case "image/gif":
				$source = imagecreatefromgif($image);
				break;
			case "image/pjpeg":
			case "image/jpeg":
			case "image/jpg":
				$source = imagecreatefromjpeg($image);
				break;
			case "image/png":
			case "image/x-png":
				$source = imagecreatefrompng($image);
				break;
		}
		imagecopyresampled($newImage, $source, 0, 0, $start_width, $start_height, $newImageWidth, $newImageHeight, $width, $height);
		switch ($imageType) {
			case "image/gif":
				imagegif($newImage, $thumb_image_name);
				break;
			case "image/pjpeg":
			case "image/jpeg":
			case "image/jpg":
				imagejpeg($newImage, $thumb_image_name, 100);
				break;
			case "image/png":
			case "image/x-png":
				imagepng($newImage, $thumb_image_name);
				break;
		}
		//chmod($thumb_image_name, 0775);
		return $thumb_image_name;
	}

?>