PHP adds watermark to pictures and uploads pictures to add watermark PHP class_PHP tutorial

php tutorial to add watermark to pictures and upload pictures to add watermark php class

/*
* Function: PHP picture watermark (watermark supports pictures or text)
* Parameters:
* $groundImage background image, that is, the image that needs to be watermarked, currently only supports GIF, JPG, and PNG formats;
* $waterPos watermark position, there are 10 states, 0 is a random position;
* 1 is The top is left, 2 is top-centered, 3 is top-centered;
* 4 is middle-left, 5 is middle-centered, 6 is middle-right;
* 7 is bottom-centered, 8 is bottom-centered, 9 means bottom right;
* $waterImage image watermark, that is, the image used as a watermark, currently only supports GIF, JPG, PNG formats;
* $waterText text watermark, that is, text is used as a watermark, supports ASCII Code, Chinese is not supported;
* $textFont text size, value is 1, 2, 3, 4 or 5, default is 5;
* $textColor text color, value is hexadecimal color value, default is #FF0000 (red);
*
* Note: Support GD 2.0, Support FreeType, GIF Read, GIF Create, JPG, PNG
* It is best not to use $waterImage and $waterText at the same time, select one of them One of them will do, and $waterImage will be used first.
* When $waterImage is valid, the parameters $waterString, $stringFont, and $stringColor will not take effect.
* The file name of the watermarked image is the same as $groundImage.
* Author: longware @ 2004-11-3 14:15:13
*/
function imageWaterMark($groundImage,$waterPos=0,$waterImage=””,$waterText=””,$ textFont=5,$textColor=”#FF0000″)
{
$isWaterImage = FALSE;
$formatMsg = “This file format is not supported yet. Please use image processing software to convert the image to GIF or JPG. , PNG format. ";

//Read watermark file
if(!emptyempty($waterImage) && file_exists($waterImage))
{
$isWaterImage = TRUE;
$water_info = getimagesize($waterImage);
$water_w = $water_info[0];//Get the width of the watermark image
$water_h = $water_info[1];//Get the height of the watermark image

switch($water_info[2])//Get the format of the watermark image
{
case 1:$water_im = imagecreatefromgif($waterImage);break;
case 2:$water_im = imagecreatefromjpeg ($waterImage);break;
case 3:$water_im = imagecreatefrompng($waterImage);break;
default:die($formatMsg);
}
}

/ /Read background image
if(!emptyempty($groundImage) && file_exists($groundImage))
{
$ground_info = getimagesize($groundImage);
$ground_w = $ground_info[0] ;//Get the width of the background image
$ground_h = $ground_info[1];//Get the height of the background image

switch($ground_info[2])//Get the format of the background image
{
case 1:$ground_im = imagecreatefromgif($groundImage);break;
case 2:$ground_im = imagecreatefromjpeg($groundImage);break;
case 3:$ground_im = imagecreatefrompng($groundImage) ;break;
default:die($formatMsg);
}
}
else
{
die("The picture that needs to be watermarked does not exist! ”);
}

//Watermark position
if($isWaterImage)//Picture watermark
{
$w = $water_w;
$h = $water_h ;
$label = "Image";
}
else//Text watermark
{
$temp = imagettfbbox(ceil($textFont*5),0,"./cour .ttf",$waterText);//Get the range of text using TrueType font
$w = $temp[2] - $temp[6];
$h = $temp[3] - $temp [7];
unset($temp);
$label = "Text area";
}
if( ($ground_w<$w) || ($ground_h<$h) )
{
echo "The length or width of the image that needs to be watermarked is smaller than the watermark ".$label.", so the watermark cannot be generated! ”;
return;
}
switch($waterPos)
{
case 0://random
$posX = rand(0,($ground_w - $w)) ;
$posY = rand(0,($ground_h - $h));
break;
case 1://1 is top left
$posX = 0;
$posY = 0;
break;
case 2://2 is top-centered
$posX = ($ground_w - $w) / 2;
$posY = 0;
break;
case 3://3 is the top right
$posX = $ground_w - $w;
$posY = 0;
break;
case 4://4 is the middle left
$posX = 0;
$posY = ($ground_h - $h) / 2;
break;
case 5://5 is centered in the middle
$posX = ($ground_w - $w) / 2;
$posY = ($ground_h - $h) / 2;
break;
case 6://6 is middle right
$posX = $ground_w - $ w;
$posY = ($ground_h - $h) / 2;
break;
case 7://7 is bottom left
$posX = 0;
$posY = $ground_h - $h;
break;
case 8://8 is bottom centered
$posX = ($ground_w - $w) / 2;
$posY = $ground_h - $ h;
break;
case 9://9 is bottom right
$posX = $ground_w - $w;
$posY = $ground_h - $h;
break;
default://random
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break ;
}

//Set the color blending mode of the image
imagealphablending($ground_im, true);

if($isWaterImage)//Image watermark
{
imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//Copy the watermark to the target File
}
else//Text watermark
{
if( !emptyempty($textColor) && (strlen($textColor)==7) )
{
$R = hexdec(substr($textColor,1,2));
$G = hexdec(substr($textColor,3,2));
$B = hexdec(substr($textColor,5));
}
else
{
die("The watermark text color format is incorrect!");
}
imagestring ( $ground_im, $textFont, $posX, $posY, $waterText , imagecolorallocate($ground_im, $R, $G, $B));
}

//Generate watermarked image
@unlink($groundImage);
switch($ ground_info[2])//Get the format of the background image
{
case 1:imagegif($ground_im,$groundImage);break;
case 2:imagejpeg($ground_im,$groundImage);break;
case 3:imagepng($ground_im,$groundImage);break;
default:die($errorMsg);
}

//Release memory
if(isset($ water_info)) unset($water_info);
if(isset($water_im)) imagedestroy($water_im);
unset($ground_info);
imagedestroy($ground_im);
}
//————————————————————————————————
$id=$_REQUEST['id'];
$ num = count($_FILES['userfile']['name']);
print_r($_FILES['userfile']);
print_r($_FILES['userfile']['name']) ;

echo $num;
echo “
”;
if(isset($id)){
for($i=0;$i<$id; $i++){

if(isset($_FILES) && !emptyempty($_FILES['userfile']) && $_FILES['userfile']['size']>0)
{
$uploadfile = “./”.time().”_”.$_FILES['userfile'][name][$i];
echo “
”;
echo $ uploadfile;
if (copy($_FILES['userfile']['tmp_name'][$i], $uploadfile))
{
echo “OK
”;

//Text watermark
//imageWaterMark($uploadfile,5,"","HTTP://www.lvye.info",5,"#cccccc");

//Image watermark
$waterImage="logo_ok1.gif";//Watermark image path
imageWaterMark($uploadfile,9,$waterImage);

echo "";
}
else
{
echo "Fail
";
}
}
}
}

?>

for($a=0;$a< ;$id;$a++){
echo “File:
”;

}
?> ;

?>

//The following code is an image upload and Add watermark to uploaded images

Parameter description:
$max_file_size: upload file size limit, unit BYTE
$destination_folder: upload file path
$watermark: whether to add a watermark (1 means adding watermark, others means not adding watermark);
Instructions for use:
1. Remove the ; sign in front of the "extension=php_gd2.dll" line in the PHP.INI file, because we need to use the GD library;
2. Change extension_dir = to The directory where your php_gd2.dll is located;
3. asp tutorial">http://www.knowsky.com/php.asp;
****************** ************************************/
//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 the 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 generated, Others are not generated);
$imgpreviewsize=1/2; //Thumbnail ratio
?>

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 www.bkjia.com!";
exit;
}
$file = $_FILES["upfile"];
if($max_file_size < $file["size"])
//Check file size
{
echo "The file is too big!";
exit;
}
if(!in_array($file["type"], $uptypes))
//Check the file type
{
        echo "File type does not match!".$file["type"];
             exit; ($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 " 已经成功上传
文件名:  ".$destination_folder.$fname."
";
    echo " 宽度:".$image_size[0];
    echo " 长度:".$image_size[1];
    echo "
大小:".$file["size"]." bytes";
    if($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("不支持的文件类型");
            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($watertype)
        {
            case 1:   //加水印字符串
            imagestring($nimage,2,3,$image_size[1]-15,$waterstring,$black);
            break;
            case 2:   //加水印图片
            $simage1 =imagecreatefromgif("xplore.gif");
            imagecopy($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, $destination);
break;
}
//Overwrite the original Upload file
imagedestroy($nimage);
imagedestroy($simage);
}
if($imgpreview==1)
{
echo "
Image preview :
";
echo "";
}
}
?>

http://www.bkjia.com/PHPjc/444950.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/444950.htmlTechArticlephp tutorial to add watermark to pictures and upload pictures to add watermark php class/* * Function: PHP picture watermark (watermark support Picture or text) * Parameters: * $groundImage background image, that is, the image that needs to be watermarked...