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发表于 2005 年 1 月 19 日 21:36:28
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显示全部楼层
给个图片上传程序楼主研究下- <?php
- $uptypes=array('image/jpg', //上传文件类型列表
- 'image/jpeg',
- 'image/png',
- 'image/pjpeg',
- 'image/gif',
- 'image/bmp',
- 'application/x-shockwave-flash',
- 'image/x-png');
- $max_file_size=20000000; //上传文件大小限制, 单位BYTE
- $destination_folder="pic/"; //上传文件路径
- $watermark=0; //是否附加水印(1为加水印,其他为不加水印);
- $watertype=1; //水印类型(1为文字,2为图片)
- $waterposition=1; //水印位置(1为左下角,2为右下角,3为左上角,4为右上角,5为居中);
- $waterstring="newphp.site.cz"; //水印字符串
- $waterimg="xplore.gif"; //水印图片
- $imgpreview=1; //是否生成预览图(1为生成,其他为不生成);
- $imgpreviewsize=1/2; //缩略图比例
- ?>
- <html>
- <head>
- <title>ZHWENBI</title>
- <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
- <style type="text/css">body,td{font-family:tahoma,verdana,arial;font-size:11px;line-height:15px;background-
- color:white;color:#666666;margin-left:20px;}
- strong{font-size:12px;}
- a:link{color:#0066CC;}
- a:hover{color:#FF6600;}
- a:visited{color:#003366;}
- a:active{color:#9DCC00;}
- table.itable{}
- td.irows{height:20px;background:url("index.php?i=dots") repeat-x bottom}</style>
- </head>
- <body>
- <center><form enctype="multipart/form-data" method="post" name="upform">
- 上传文件: <br><br><br>
- <input name="upfile" type="file" style="width:200;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff"
- size="17">
- <input type="submit" value="上传" style="width:30;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff"
- size="17"><br><br><br>
- 允许上传的文件类型为:jpg|jpeg|png|pjpeg|gif|bmp|x-png|swf <br><br>
- <a href="index.php">返回</a>
- </form>
- <?php
- if ($_SERVER['REQUEST_METHOD'] == 'POST')
- {
- if (!is_uploaded_file($_FILES["upfile"][tmp_name]))
- //是否存在文件
- {
- echo "<font color='red'>文件不存在!</font>";
- exit;
- }
- $file = $_FILES["upfile"];
- if($max_file_size < $file["size"])
- //检查文件大小
- {
- echo "<font color='red'>文件太大!</font>";
- exit;
- }
- if(!in_array($file["type"], $uptypes))
- //检查文件类型
- {
- echo "<font color='red'>只能上传图像文件或Flash!</font>";
- exit;
- }
- if(!file_exists($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) && $overwrite != true)
- {
- echo "<font color='red'>同名文件已经存在了!</a>";
- exit;
- }
-
- if(!move_uploaded_file ($filename, $destination))
- {
- echo "<font color='red'>移动文件出错!</a>";
- 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];
- 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("<font color='red'>不能上传此类型文件!</a>");
- 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, $destination);
- break;
- }
-
- //覆盖原上传文件
- imagedestroy($nimage);
- imagedestroy($simage);
- }
- if($imgpreview==1)
- {
- echo "<br>图片预览:<br>";
- echo "<a href=\"".$destination."\" target='_blank'><img src=\"".$destination."\" width=".($image_size[0]*$imgpreviewsize)."
- height=".($image_size[1]*$imgpreviewsize);
- echo " alt=\"图片预览:\r文件名:".$destination."\r上传时间:\" border='0'></a>";
- }
- }
- ?>
- </center>
- </body>
- </html>
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