Original	HTML downscale	PHP resample	PHP resize

Script used to downscale

<?php 
	function resizeImage($mImg, $iNewWidth, $iNewHeight, $sSaveLocation)
	{
		$sImgLocation = $mImg;
		$bResult = true;
		if (getimagesize($sImgLocation) != false)
		{
			$aDimensions = getimagesize($sImgLocation);
			$iOriginalWidth = $aDimensions[0];
			$iOriginalHeight = $aDimensions[1];
			$iFileType = $aDimensions[2];

//Open the image
			switch ($iFileType)
			{
				case 1: $rImage = imagecreatefromgif($sImgLocation);
					break;
				case 2: $rImage = imagecreatefromjpeg($sImgLocation);
					break;
				case 3: $rImage = imagecreatefrompng($sImgLocation);
					break;
				default: $bResult = false;
					break;
			}

if ($bResult)
			{
				$rNewImage = imagecreatetruecolor($iNewWidth, $iNewHeight);

if ($iFileType == 1 || $iFileType == 3)
				{
					imagealphablending($rNewImage, false);
					imagesavealpha($rNewImage, true);
					$rTransparent = imagecolorallocatealpha($rNewImage, 255, 255, 255, 127);
					imagefilledrectangle($rNewImage, 0, 0, $iNewWidth, $iNewWidth, $rTransparent);
				}
///// HERE the magic happens
				$bResult = imagecopyresized($rNewImage, $rImage, 0, 0, 0, 0, $iNewWidth, $iNewHeight, $iOriginalWidth, $iOriginalHeight);
//For resampling instead of resize, I just replaced this function
				if ($bResult)
				{
					switch ($iFileType)
					{
						case 1: imagegif($rNewImage, $sSaveLocation);
							break;
						case 2: imagejpeg($rNewImage, $sSaveLocation);
							break;
						case 3: imagepng($rNewImage, $sSaveLocation);
							break;
						default: $bResult = false;
							break;
					}
				}
			}
		}
		else
		{
			$bResult = false;
		}

return $bResult;
	}
	resizeImage("500x500.png", 250,250, "250x250-downscaled-by-php-lessQ.png");