PHP image watermarking and uploaded image watermarking

//Upload file type list
$uptypes=array(
'image/jpg',
'image/jpeg',
'image/png',
'image/pjpeg',
'image/gif',
'image/bmp',
'image/x-png'
);
$max_file_size=2000000; //Upload file size limit, unit BYTE
$destination_folder="uploadimg/"; / /Upload file path
$watermark=1; //Whether to attach a watermark (1 is watermarked, others are not watermarked);
$watertype=1; //Watermark type (1 is text, 2 is picture)
$waterposition =1; //Watermark position (1 is the lower left corner, 2 is the lower right corner
, 3 is the upper left corner, 4 is the upper right corner, 5 is in the center);
$waterstring="
http://www.xplore.cn/"; //Watermark string
$waterimg="xplore.gif"; //Watermark image
$imgpreview=1 ; //Whether to generate a preview image (1 means generate, others do not generate);
$imgpreviewsize=1/2; //Thumbnail ratio
?>


 ZwelL image uploader



method ="post" name="upform">
Upload file:

The file types allowed to be uploaded are:

if ($_SERVER['REQUEST_METHOD'] == 'POST ')
{
if (!is_uploaded_file($_FILES["upfile"]
[tmp_name]))
//Whether the file exists
{
echo "The picture does not exist!";
exit;
}
$file = $ _FILES["upfile"];
if($max_file_size <$file["size"])
//Check the file size
{
echo "The file is too big!";
exit;
}
if(!in_array( $file["type"], $uptypes))
//Check file type
{
echo "File type does not match!".$file["type"];
exit;
}
if(!file_exists($destination_folder ))
{
mkdir($destination_folder);
}
$filename=$file["tmp_name"];
$image_size = getimagesize($filename);
$pinfo=pathinfo($file["name"]);
$ftype=$pinfo['extension'];
$destination = $destination_folder.
time().".".$ftype;
if (file_exists($destination) &&
$overwrite != true)
{
 echo "The file with the same name already exists";
exit;
}
if(!move_uploaded_file ($filename,
$destination))
{
echo "Error moving file";
exit;
}
$pinfo=pathinfo($ destination);
$fname=$pinfo[basename];
echo "  has been successfully uploaded
File name:
".$ destination_folder.
$fname."";
echo " width:".$image_size[0];
echo " length:".$image_size[1];
echo "
if($watermark==1)
{
$iinfo=getimagesize($destination,$iinfo);
$nimage=imagecreatetruecolor($image_size[ 0]
,$image_size[1]);
$white=imagecolorallocate($nimage,255,255,255);
$black=imagecolorallocate($nimage,0,0,0);
$red=imagecolorallocate($nimage,255, 0,0);
imagefill($nimage,0,0,$white);
switch ($iinfo[2])
{
case 1:
$simage =imagecreatefromgif($destination);
break;
case 2 :
$simage =imagecreatefromjpeg($destination);
break;
case 3:
$simage =imagecreatefrompng($destination);
break;
case 6:
$simage =imagecreatefromwbmp($destination);
break;
default :
die("Unsupported file type");
exit;
}
imagecopy($nimage,$simage,0,0,0,0,
$image_size[0],$image_size[1]);
 imagefilledrectangle($nimage,1,
$image_size[1]-15,80,$image_size[1],$white);
switch($watertype)
{
case 1: //Add watermark string
imagestring($ nimage,2,3,$image_size[1]-15,
$waterstring,$black);
break;
case 2: //Add watermark image
$simage1 =imagecreatefromgif("xplore.gif");
imagecopy( $nimage,$simage1,0,0,0,0,85,15);
imagedestroy($simage1);
break;
}
switch ($iinfo[2])
{
case 1:
//imagegif ($nimage, $destination);
imagejpeg($nimage, $destination);
break;
case 2:
imagejpeg($nimage, $destination);
break;
case 3:
imagepng($nimage, $destination );
break;
case 6:
imagewbmp($nimage, $destination);
//imagejpeg($nimage, $destination);
break;
}
//Overwrite the original uploaded file
imagedestroy($nimage);
imagedestroy($simage);
}
if($imgpreview==1)
{
echo "Image preview:";
echo "height=".($image_size[1]*$imgpreviewsize);"
echo " alt="Image preview:rFile name:".
$destination."rUpload time:" />" ;
}
}
?>