php教程給圖片加浮水印與上傳圖片加浮水印php類
/*
* 功能:PHP圖片浮水印 (浮水印支援圖片或文字)
* 參數:
* $groundImage 背景圖片,即需要加浮水印的圖片,暫只支援GIF,JPG,PNG格式;
* $waterPos 浮水印位置,有10種狀態,0為隨機位置;
* 1為頂端居左,2為頂端置中,3為頂端居右;
* 4為中部居左,5為中部置中,6為中部居右;
* 7為底端居左,8為底端置中,9為底端居右;
* $waterImage 圖片浮水印,即作為浮水印的圖片,暫只支援GIF,JPG,PNG格式;
* $waterText 文字浮水印,即把文字作為為浮水印,支援ASCII碼,不支援中文;
* $textFont 文字大小,值為1、2、3、4或5,預設為5;
* $textColor 文字顏色,值為十六進位顏色值,預設為#FF0000(紅色);
*
* 注意:Support GD 2.0,Support FreeType、GIF Read、GIF Create、JPG 、PNG
* $waterImage 和 $waterText 最好不要同時使用,選其中之一即可,優先使用 $waterImage。
* 當$waterImage有效時,參數$waterString、$stringFont、$stringColor均不生效。
* 加浮水印後的圖片的檔案名稱和 $groundImage 一樣。
* 作者:longware @ 2004-11-3 14:15:13
*/
function imageWaterMark($groundImage,$waterPos=0,$waterImage=”",$waterText=”",$textFont=5,$textColor=”#FF0000″)
{
$isWaterImage = FALSE;
$formatMsg = “暫不支援該檔案格式,請用圖片處理軟體將圖片轉換為GIF、JPG、PNG格式。”;
//讀取浮水印檔案
if(!emptyempty($waterImage) && file_exists($waterImage))
{
$isWaterImage = TRUE;
$water_info = getimagesize($waterImage);
$water_w = $water_info[0];//取得浮水印圖片的寬
$water_h = $water_info[1];//取得浮水印圖片的高
switch($water_info[2])//取得浮水印圖片的格式
{
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($formatMsg);
}
}
else
{
die(”需要加浮水印的圖片不存在!”);
}
//浮水印位置
if($isWaterImage)//圖片浮水印
{
$w = $water_w;
$h = $water_h;
$label = “圖片的”;
}
else//文字浮水印
{
$temp = imagettfbbox(ceil($textFont*5),0,”./cour.ttf”,$waterText);//取得使用 TrueType 字型的文本的範圍
$w = $temp[2] - $temp[6];
$h = $temp[3] - $temp[7];
unset($temp);
$label = “文字地區”;
}
if( ($ground_w<$w) || ($ground_h<$h) )
{
echo “需要加浮水印的圖片的長度或寬度比浮水印”.$label.”還小,無法產生浮水印!”;
return;
}
switch($waterPos)
{
case 0://隨機
$posX = rand(0,($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為頂端置中
$posX = ($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為中部置中
$posX = ($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為底端置中
$posX = ($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
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break;
}
//設定映像的混色模式
imagealphablending($ground_im, true);
if($isWaterImage)//圖片浮水印
{
imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//拷貝浮水印到目標檔案
}
else//文字浮水印
{
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(”浮水印文字顏色格式不正確!”);
}
imagestring ( $ground_im, $textFont, $posX, $posY, $waterText, imagecolorallocate($ground_im, $R, $G, $B));
}
//產生浮水印後的圖片
@unlink($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);
}
//釋放記憶體
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], $uploadfile))
{
echo “OK
”;
//文字浮水印
//imageWaterMark($uploadfile,5,”",”HTTP://www.lvye.info”,5,”#cccccc“);
//圖片浮水印
$waterImage=”logo_ok1.gif”;//浮水印圖片路徑
imageWaterMark($uploadfile,9,$waterImage);
echo “”;
}
else
{
echo “Fail
”;
}
}
}
}
?>
?>
//下面這段代碼是一段圖片上傳並且給上傳的圖片加浮水印
參數說明:
$max_file_size : 上傳檔案大小限制, 單位BYTE
$destination_folder : 上傳檔案路徑
$watermark : 是否附加浮水印(1為加浮水印,其他為不加浮水印);
使用說明:
1. 將PHP.INI檔案裡面的"extension=php_gd2.dll"一行前面的;號去掉,因為我們要用到GD庫;
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;
****************************************************/
//上傳檔案類型列表
$uptypes=array(
'image/jpg',
'image/jpeg',
'image/png',
'image/pjpeg',
'image/gif',
'image/bmp',
'image/x-png'
);
$max_file_size=2000000; //上傳檔案大小限制, 單位BYTE
$destination_folder="uploadimg/"; //上傳檔案路徑
$watermark=1; //是否附加浮水印(1為加浮水印,其他為不加浮水印);
$watertype=1; //浮水印類型(1為文字,2為圖片)
$waterposition=1; //浮水印位置(1為左下角,2為右下角,3為左上方,4為右上方,5為置中);
$waterstring="http://www.xplore.cn/"; //浮水印字串
$waterimg="xplore.gif"; //浮水印圖片
$imgpreview=1; //是否產生預覽圖(1為產生,其他為不產生);
$imgpreviewsize=1/2; //縮圖比例
?>
ZwelL圖片上傳程式
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
if (!is_uploaded_file($_FILES["upfile"][tmp_name]))
//是否存在檔案
{
echo "圖片不存在www.bkjia.com!";
exit;
}
$file = $_FILES["upfile"];
if($max_file_size < $file["size"])
//檢查檔案大小
{
echo "檔案太大!";
exit;
}
if(!in_array($file["type"], $uptypes))
//檢查檔案類型
{
echo "檔案類型不符!".$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) && $overwrite != true)
{
echo "同名檔案已經存在了";
exit;
}
if(!move_uploaded_file ($filename, $destination))
{
echo "移動檔案出錯";
exit;
}
$pinfo=pathinfo($destination);
$fname=$pinfo[basename];
echo " 已經成功上傳
檔案名稱: ".$destination_folder.$fname."
";
echo " 寬度:".$image_size[0];
echo " 長度:".$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("不支援的檔案類型");
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($watertype)
{
case 1: //加浮水印字串
imagestring($nimage,2,3,$image_size[1]-15,$waterstring,$black);
break;
case 2: //加浮水印圖片
$simage1 =imagecreatefromgif("xplore.gif");
imagecopy($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, $destination);
break;
}
//覆蓋原上傳檔案
imagedestroy($nimage);
imagedestroy($simage);
}
if($imgpreview==1)
{
echo "
圖片預覽:
";
echo " echo " alt="圖片預覽:r檔案名稱:".$destination."rwww.bkjia.com上傳時間:">";
}
}
?>
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