php给图片加水印与上传图片加水印php类 |
时间:2015-01-23 来源:西部数据 作者:西部数据 |
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- function imageWaterMark($groundImage,$waterPos=0,$waterImage=”",$waterText=”",$textFont=5,$textColor=”#FF0000″)
- {
- $isWaterImage = FALSE;
- $formatMsg = “暂不支持该文件格式,请用图片处理软件将图片转换为GIF、JPG、PNG格式。”;
-
-
- if(!emptyempty($waterImage) && file_exists($waterImage))
- {
- $isWaterImage = TRUE;
- $water_info = getimagesize($waterImage);
- $water_w = $water_info[0];
- $water_h = $water_info[1];
-
- switch($water_info[2])
- {
- case 1:$water_im = imagecreatefromgif($waterImage);break;
- case 2:$water_im = imagecreatefromjpeg($waterImage);break;
- case 3:$water_im = imagecreatefrompng($waterImage);break;
- default:die($formatMsg);
- }
- }
-
-
- if(!emptyempty($groundImage) && file_exists($groundImage))
- {
- $ground_info = getimagesize($groundImage);
- $ground_w = $ground_info[0];
- $ground_h = $ground_info[1];
-
- switch($ground_info[2])
- {
- case 1:$ground_im = imagecreatefromgif($groundImage);break;
- case 2:$ground_im = imagecreatefromjpeg($groundImage);break;
- case 3:$ground_im = imagecreatefrompng($groundImage);break;
- default:die($formatMsg);
- }
- }
- else
- {
- die(”需要加水印的图片不存在!”);
- }
-
-
- if($isWaterImage)
- {
- $w = $water_w;
- $h = $water_h;
- $label = “图片的”;
- }
- else
- {
- $temp = imagettfbbox(ceil($textFont*5),0,”./cour.ttf”,$waterText);
- $w = $temp[2] - $temp[6];
- $h = $temp[3] - $temp[7];
- unset($temp);
- $label = “文字区域”;
- }
- if( ($ground_w<$w) || ($ground_h<$h) )
- {
- echo “需要加水印的图片的长度或宽度比水印”.$label.”还小,无法生成水印!”;
- return;
- }
- switch($waterPos)
- {
- case 0:
- $posX = rand(0,($ground_w - $w));
- $posY = rand(0,($ground_h - $h));
- break;
- case 1:
- $posX = 0;
- $posY = 0;
- break;
- case 2:
- $posX = ($ground_w - $w) / 2;
- $posY = 0;
- break;
- case 3:
- $posX = $ground_w - $w;
- $posY = 0;
- break;
- case 4:
- $posX = 0;
- $posY = ($ground_h - $h) / 2;
- break;
- case 5:
- $posX = ($ground_w - $w) / 2;
- $posY = ($ground_h - $h) / 2;
- break;
- case 6:
- $posX = $ground_w - $w;
- $posY = ($ground_h - $h) / 2;
- break;
- case 7:
- $posX = 0;
- $posY = $ground_h - $h;
- break;
- case 8:
- $posX = ($ground_w - $w) / 2;
- $posY = $ground_h - $h;
- break;
- case 9:
- $posX = $ground_w - $w;
- $posY = $ground_h - $h;
- break;
- default:
- $posX = rand(0,($ground_w - $w));
- $posY = rand(0,($ground_h - $h));
- break;
- }
-
-
- imagealphablending($ground_im, true);
-
- if($isWaterImage)
- {
- imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);
- }
- else
- {
- 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(”水印文字颜色格式不正确!”);
- }
- imagestring ( $ground_im, $textFont, $posX, $posY, $waterText, imagecolorallocate($ground_im, $R, $G, $B));
- }
-
-
- @unlink($groundImage);
- switch($ground_info[2])
- {
- case 1:imagegif($ground_im,$groundImage);break;
- case 2:imagejpeg($ground_im,$groundImage);break;
- case 3:imagepng($ground_im,$groundImage);break;
- default:die($errorMsg);
- }
-
-
- 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 $num;
- echo “<bR>”;
- if(isset($id)){
- for($i=0;$i<$id;$i++){
-
- if(isset($_FILES) && !emptyempty($_FILES['userfile']) && $_FILES['userfile']['size']>0)
- {
- $uploadfile = “./”.time().”_”.$_FILES['userfile'][name][$i];
- echo “<br>”;
- echo $uploadfile;
- if (copy($_FILES['userfile']['tmp_name'][$i], $uploadfile))
- {
- echo “OK<br>”;
-
-
-
-
-
- $waterImage=”logo_ok1.gif”;
- imageWaterMark($uploadfile,9,$waterImage);
-
- echo “<img src=”".$uploadfile.”” border=”0”>”;
- }
- else
- {
- echo “Fail<br>”;
- }
- }
- }
- }
-
- ?>
- <form enctype=”multipart/form-data” method=”POST”>
- <?php
- for($a=0;$a<$id;$a++){
- echo “文件: <input name=”userfile[]” type=”file”><br>”;
-
- }
- ?>
- <input type=”submit” value=”上传”>
- </form>
- ?>
-
-
-
- 参数说明:
- $max_file_size : 上传文件大小限制, 单位BYTE
- $destination_folder : 上传文件路径
- $watermark : 是否附加水印(1为加水印,其他为不加水印);
- 使用说明:
- 1. 将PHP.INI文件里面的"extension=php_gd2.dll"一行前面的;号去掉,因为我们要用到GD库;
- 2. 将extension_dir =改为你的php_gd2.dll所在目录;
- 3. http:
- ****************************************************/
-
- $uptypes=array(
- 'image/jpg',
- 'image/jpeg',
- 'image/png',
- 'image/pjpeg',
- 'image/gif',
- 'image/bmp',
- 'image/x-png'
- );
- $max_file_size=2000000;
- $destination_folder="uploadimg/";
- $watermark=1;
- $watertype=1;
- $waterposition=1;
- $waterstring="http://www.xplore.cn/"; //水印字符串
- $waterimg="xplore.gif";
- $imgpreview=1;
- $imgpreviewsize=1/2;
- ?>
- <html>
- <head>
- <title>ZwelL图片上传程序</title>
- <style type="text/css教程">
- <!--
- body
- {
- font-size: 9pt;
- }
- input
- {
- background-color: #66CCFF;
- border: 1px inset #CCCCCC;
- }
- -->
- </style>
- </head>
- <body>
- <form enctype="multipart/form-data" method="post" name="upform">
- 上传文件:
- <input name="upfile" type="file">
- <input type="submit" value="上传"><br>
- 允许上传的文件类型为:<?=implode(', ',$uptypes)?>
- </form>
- <?php
- if ($_SERVER['REQUEST_METHOD'] == 'POST')
- {
- if (!is_uploaded_file($_FILES["upfile"][tmp_name]))
-
- {
- echo "图片不存在www.111cn.net!";
- exit;
- }
- $file = $_FILES["upfile"];
- if($max_file_size < $file["size"])
-
- {
- echo "文件太大!";
- exit;
- }
- if(!in_array($file["type"], $uptypes))
-
- {
- echo "文件类型不符!".$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) && $overwrite != true)
- {
- echo "同名文件已经存在了";
- exit;
- }
- if(!move_uploaded_file ($filename, $destination))
- {
- echo "移动文件出错";
- exit;
- }
- $pinfo=pathinfo($destination);
- $fname=$pinfo[basename];
- echo " <font color=red>已经成功上传</font><br>文件名: <font color=blue>".$destination_folder.$fname."</font><br>";
- echo " 宽度:".$image_size[0];
- echo " 长度:".$image_size[1];
- echo "<br> 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($watertype)
- {
- case 1:
- imagestring($nimage,2,3,$image_size[1]-15,$waterstring,$black);
- break;
- case 2:
- $simage1 =imagecreatefromgif("xplore.gif");
- imagecopy($nimage,$simage1,0,0,0,0,85,15);
- imagedestroy($simage1);
- break;
- }
- switch ($iinfo[2])
- {
- case 1:
-
- imagejpeg($nimage, $destination);
- break;
- case 2:
- imagejpeg($nimage, $destination);
- break;
- case 3:
- imagepng($nimage, $destination);
- break;
- case 6:
- imagewbmp($nimage, $destination);
-
- break;
- }
-
- imagedestroy($nimage);
- imagedestroy($simage);
- }
- if($imgpreview==1)
- {
- echo "<br>图片预览:<br>";
- echo "<img src="".$destination."" width=".($image_size[0]*$imgpreviewsize)." height=".($image_size[1]*$imgpreviewsize);
- echo " alt="图片预览: 文件名:".$destination." www.111cn.net上传时间:">";
- }
- }
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