upImg('','ds.jpg',80,80,'namefile',0,0,256,0);
 
function upImg($file,$urlfile,$sizew,$sizeh,$uploadfile,$squared=0,$squared2=0,$pal=256,$inv=0){
	$uploadfile.=".gif";	
 
	if($urlfile!=""){
		$file = array("size" => 0, "type" => "");
		$file["size"] = strlen(file_get_contents($urlfile));
		$file["type"] = strtolower(str_ireplace(".", "", substr($urlfile, -4)));
	}
 
	if($file["size"]>200 && ($file["size"]/1024)<3000){
		$ft=str_ireplace("image/","",$file["type"]);
		if ($ft=="gif" || $ft=="png" || $ft=="jpeg" || $ft=="pjpeg" || $ft=="jpg"){
			if($urlfile==""){move_uploaded_file($file["tmp_name"],$uploadfile);}
			else{file_put_contents($uploadfile, file_get_contents($urlfile));}			
			if ($ft=="gif"){$simg = ImageCreateFromGIF($uploadfile);}
			if ($ft=="png"){$simg = ImageCreateFromPNG($uploadfile);}
			if ($ft=="jpeg" || $ft=="pjpeg" || $ft=="jpg"){$simg = ImageCreateFromJPEG($uploadfile);}			
 
			$swdt = imagesx($simg); 
			$shgt = imagesy($simg);
			if($swdt<$sizew){$sizew=$swdt;}
			if($shgt<$sizeh){$sizeh=$shgt;}
			$dimg = ImageCreate($sizew, $sizeh);
			$rX = $swdt / $sizew;
			$rY = $shgt / $sizeh;	
 
			if($sizeh>$shgt*($sizew/$swdt)){		
				$rX = $swdt /($swdt *($sizeh/$shgt));
				$Rx=((($swdt*($sizeh/$shgt))-$sizew)/2)*$rX;
			}			
 
			if($sizeh<$shgt*($sizew/$swdt)){
				$rY = $shgt /($shgt*($sizew/$swdt));
				$Ry=((($shgt*($sizew/$swdt))-$sizeh)/2)*$rY;			
			}			
 
			imagetruecolortopalette($simg, false, $pal);			
			ImagePaletteCopy($dimg, $simg);
 
			$w = 0;
			for ($y = 0; $y < $sizeh; $y++)  {
				$ow = $w; $w = round(($y + 1) * $rY+$Ry);
				$t = 0;
				for ($x = 0; $x < $sizew; $x++)  {
					$r = $g = $b = $squared2; $a = $squared;
					$ot = $t; $t = round(($x + 1) * $rX+$Rx);
					for ($u = 0; $u < ($w - $ow); $u++)  {
						for ($p = 0; $p < ($t - $ot); $p++)  {
							$c = ImageColorsForIndex($simg, ImageColorAt($simg, $ot + $p, $ow + $u));
							$r += $c['red'];
							$g += $c['green'];
							$b += $c['blue'];
							$a++;
						}
					}
					ImageSetPixel($dimg, $x, $y, ImageColorClosest($dimg, abs(($inv*256)-($r / $a)), abs(($inv*256)-($g / $a)), abs(($inv*256)-($b / $a))));
				}
			}			
 
			imageGif($dimg, $uploadfile);
			imagedestroy($simg);
			imagedestroy($dimg);			
			return $uploadfile;			
		}
		else{echo "Error: The file must be a GIF, PNG, or JPG!";}
	}
	else{echo "Error: File Size incorrect!";}	
}