php教程給圖片加水印與上傳圖片加水印php類

/*
* 功能：PHP圖片水印 (水印支持圖片或文字)
* 參數(shù)：
* $groundImage 背景圖片，即需要加水印的圖片，暫只支持GIF,JPG,PNG格式；
* $waterPos 水印位置，有10種狀態(tài)，0為隨機(jī)位置；
* 1為頂端居左，2為頂端居中，3為頂端居右；
* 4為中部居左，5為中部居中，6為中部居右；
* 7為底端居左，8為底端居中，9為底端居右；
* $waterImage 圖片水印，即作為水印的圖片，暫只支持GIF,JPG,PNG格式；
* $waterText 文字水印，即把文字作為為水印，支持ASCII碼，不支持中文；
* $textFont 文字大小，值為1、2、3、4或5，默認(rèn)為5；
* $textColor 文字顏色，值為十六進(jìn)制顏色值，默認(rèn)為#FF0000(紅色)；
*
* 注意：Support GD 2.0，Support FreeType、GIF Read、GIF Create、JPG 、PNG
* $waterImage 和 $waterText 最好不要同時(shí)使用，選其中之一即可，優(yōu)先使用 $waterImage。
* 當(dāng)$waterImage有效時(shí)，參數(shù)$waterString、$stringFont、$stringColor均不生效。
* 加水印后的圖片的文件名和 $groundImage 一樣。
* 作者：longware @ 2004-11-3 14:15:13
*/
function imageWaterMark($groundImage,$waterPos=0,$waterImage=”",$waterText=”",$textFont=5,$textColor=”#FF0000″)
{
$isWaterImage = FALSE;
$formatMsg = “暫不支持該文件格式，請(qǐng)用圖片處理軟件將圖片轉(zhuǎn)換為GIF、JPG、PNG格式?！?

//讀取水印文件
if(!emptyempty($waterImage) && file_exists($waterImage))
{
$isWaterImage = TRUE;
$water_info = getimagesize($waterImage);
$water_w = $water_info[0];//取得水印圖片的寬
$water_h = $water_info[1];//取得水印圖片的高

switch($water_info[2])//取得水印圖片的格式
{
case 1:$water_im = imagecreatefromgif($waterImage);break;
case 2:$water_im = imagecreatefromjpeg($waterImage);break;
case 3:$water_im = imagecreatefrompng($waterImage);break;
default:die($formatMsg);
}
}

//讀取背景圖片
if(!emptyempty($groundImage) && file_exists($groundImage))
{
$ground_info = getimagesize($groundImage);
$ground_w = $ground_info[0];//取得背景圖片的寬
$ground_h = $ground_info[1];//取得背景圖片的高

switch($ground_info[2])//取得背景圖片的格式
{
case 1:$ground_im = imagecreatefromgif($groundImage);break;
case 2:$ground_im = imagecreatefromjpeg($groundImage);break;
case 3:$ground_im = imagecreatefrompng($groundImage);break;
default:die($formatMsg);
}
}
else
{
die(”需要加水印的圖片不存在！”);
}

//水印位置
if($isWaterImage)//圖片水印
{
$w = $water_w;
$h = $water_h;
$label = “圖片的”;
}
else//文字水印
{
$temp = imagettfbbox(ceil($textFont*5),0,”./cour.ttf”,$waterText);//取得使用 TrueType 字體的文本的范圍
$w = $temp[2] - $temp[6];
$h = $temp[3] - $temp[7];
unset($temp);
$label = “文字區(qū)域”;
}
if( ($ground_w{
echo “需要加水印的圖片的長(zhǎng)度或?qū)挾缺人　?$label.”還小，無(wú)法生成水?。　?
return;
}
switch($waterPos)
{
case 0://隨機(jī)
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break;
case 1://1為頂端居左
$posX = 0;
$posY = 0;
break;
case 2://2為頂端居中
$posX = ($ground_w - $w) / 2;
$posY = 0;
break;
case 3://3為頂端居右
$posX = $ground_w - $w;
$posY = 0;
break;
case 4://4為中部居左
$posX = 0;
$posY = ($ground_h - $h) / 2;
break;
case 5://5為中部居中
$posX = ($ground_w - $w) / 2;
$posY = ($ground_h - $h) / 2;
break;
case 6://6為中部居右
$posX = $ground_w - $w;
$posY = ($ground_h - $h) / 2;
break;
case 7://7為底端居左
$posX = 0;
$posY = $ground_h - $h;
break;
case 8://8為底端居中
$posX = ($ground_w - $w) / 2;
$posY = $ground_h - $h;
break;
case 9://9為底端居右
$posX = $ground_w - $w;
$posY = $ground_h - $h;
break;
default://隨機(jī)
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break;
}

//設(shè)定圖像的混色模式
imagealphablending($ground_im, true);

if($isWaterImage)//圖片水印
{
imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//拷貝水印到目標(biāo)文件
}
else//文字水印
{
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(”水印文字顏色格式不正確！”);
}
imagestring ( $ground_im, $textFont, $posX, $posY, $waterText, imagecolorallocate($ground_im, $R, $G, $B));
}

//生成水印后的圖片
@unlink($groundImage);
switch($ground_info[2])//取得背景圖片的格式
{
case 1:imagegif($ground_im,$groundImage);break;
case 2:imagejpeg($ground_im,$groundImage);break;
case 3:imagepng($ground_im,$groundImage);break;
default:die($errorMsg);
}

//釋放內(nèi)存
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

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
”;

//文字水印
//imageWaterMark($uploadfile,5,”",”HTTP://www.lvye.info”,5,”#cccccc“);

//圖片水印
$waterImage=”logo_ok1.gif”;//水印圖片路徑
imageWaterMark($uploadfile,9,$waterImage);

echo “”;
}
else
{
echo “Fail
”;
}
}
}
}

?>

for($a=0;$aecho “文件:
”;

}
?>

?>

//下面這段代碼是一段圖片上傳并且給上傳的圖片加水印

參數(shù)說(shuō)明:
$max_file_size? : 上傳文件大小限制, 單位BYTE
$destination_folder : 上傳文件路徑
$watermark?? : 是否附加水印(1為加水印,其他為不加水印);
使用說(shuō)明:
1. 將PHP.INI文件里面的"extension=php_gd2.dll"一行前面的;號(hào)去掉,因?yàn)槲覀円玫紾D庫(kù);
2. 將extension_dir =改為你的php_gd2.dll所在目錄;
3. asp教程">http://www.knowsky.com/php.asp;
****************************************************/
//上傳文件類型列表
$uptypes=array(
??? 'image/jpg',?
??? 'image/jpeg',
??? 'image/png',
??? 'image/pjpeg',
??? 'image/gif',
??? 'image/bmp',
??? 'image/x-png'
);
$max_file_size=2000000;???? //上傳文件大小限制, 單位BYTE
$destination_folder="uploadimg/"; //上傳文件路徑
$watermark=1;????? //是否附加水印(1為加水印,其他為不加水印);
$watertype=1;????? //水印類型(1為文字,2為圖片)
$waterposition=1;???? //水印位置(1為左下角,2為右下角,3為左上角,4為右上角,5為居中);
$waterstring="http://www.xplore.cn/";? //水印字符串
$waterimg="xplore.gif";??? //水印圖片
$imgpreview=1;????? //是否生成預(yù)覽圖(1為生成,其他為不生成);
$imgpreviewsize=1/2;??? //縮略圖比例
?>

? 上傳文件:
?
?

? 允許上傳的文件類型為:=implode(', ',$uptypes)?>

if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
??? if (!is_uploaded_file($_FILES["upfile"][tmp_name]))
??? //是否存在文件
??? {
???????? echo "圖片不存在www.bkjia.com!";
???????? exit;
??? }
??? $file = $_FILES["upfile"];
??? if($max_file_size ??? //檢查文件大小
??? {
??????? echo "文件太大!";
??????? exit;
??? }
??? if(!in_array($file["type"], $uptypes))
??? //檢查文件類型
??? {
??????? echo "文件類型不符!".$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) && $overwrite != true)
??? {
??????? echo "同名文件已經(jīng)存在了";
??????? exit;
??? }
??? if(!move_uploaded_file ($filename, $destination))
??? {
??????? echo "移動(dòng)文件出錯(cuò)";
??????? exit;
??? }
??? $pinfo=pathinfo($destination);
??? $fname=$pinfo[basename];
??? echo " 已經(jīng)成功上傳
文件名:? ".$destination_folder.$fname."
";
??? echo " 寬度:".$image_size[0];
??? echo " 長(zhǎng)度:".$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("不支持的文件類型");
??????????? 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:?? //加水印圖片
??????????? $simage1 =imagecreatefromgif("xplore.gif");
??????????? imagecopy($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, $destination);
??????????? break;
??????? }
??????? //覆蓋原上傳文件
??????? imagedestroy($nimage);
??????? imagedestroy($simage);
??? }
??? if($imgpreview==1)
??? {
??? echo "
圖片預(yù)覽:
";
??? echo "";
??? }
}
?>