PHP图片上传与预览

jopen 7年前

 <?php  header("content-Type: text/html; charset=gb2312");  $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',  'application/msword',  'audio/x-ms-wma',  'audio/mp3',  'application/vnd.rn-realmedia',  'application/x-zip-compressed',  'application/octet-stream');  $max_file_size=1000000; //上传文件大小限制, 单位BYTE  $path_parts=pathinfo($_SERVER['PHP_SELF']); //取得当前路径  $destination_folder="up/"; //上传文件路径  $watermark=1; //是否附加水印(1为加水印,0为不加水印);  $watertype=1; //水印类型(1为文字,2为图片)  $waterposition=2; //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="www.tt365.org"; //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,0为不生成);  $imgpreviewsize=1/1; //缩略图比例  ?>  <html xmlns="undefined">  <head>  <title>图片上传储存</title>  <meta http-equiv="Content-Type" content="text/html; charset=gb2312">  <meta name="description" content="365上网导航,365网址导航" />  <style type="text/css">  body,td{font-family:tahoma,verdana,arial;font-size:11px;line-height:15px;background-color:white;color:#666666;  strong{font-size:12px;}  a:link{color:#0066CC;}  a:hover{color:#FF6600;}  a:visited{color:#003366;}  a:active{color:#9DCC00;}  a{TEXT-DECORATION:none}  td.irows{height:20px;background:url("index.php?i=dots") repeat-x bottom}  </style>  </head>  <script type="text/javascript">function oCopy(obj){obj.select();js=obj.createTextRange();js.execCommand("Copy");};function sendtof(url){window.clipboardData.setData('Text',url);alert('复制地址成功,粘贴给你好友一起分享。');};function select_format(){var on=document.getElementByIdx_x('fmt').checked;document.getElementByIdx_x('site').style.display=on?'none':'';document.getElementByIdx_x('sited').style.display=!on?'none':'';};var flag=false;function DrawImage(ImgD){var image=new Image();image.src=ImgD.src;if(image.width>0&&image.height>0){flag=true;if(image.width/image.height>=120/80){if(image.width>120){ImgD.width=120;ImgD.height=(image.height*120)/image.width;}else {ImgD.width=image.width;ImgD.height=image.height;};ImgD.alt=image.width+"×"+image.height;}else {if(image.height>80){ImgD.height=80;ImgD.width=(image.width*80)/image.height;}else {ImgD.width=image.width;ImgD.height=image.height;};ImgD.alt=image.width+"×"+image.height;}};};function FileChange(Value){flag=false;document.all.uploadimage.width=10;document.all.uploadimage.height=10;document.all.uploadimage.alt="";document.all.uploadimage.src=Value;};</script>  <body bgcolor="#FFFFFF">  <center>  <form enctype="multipart/form-data" method="post" name="upform">  <table border="1" width="55%" id="table1" cellspacing=0>  <tr>  <td colspan="2"><p align="center">最大文件限制1M </td>  </tr>  <tr>  <td width="10%"><div style="width:120px; height:80px;overflow:hidden;text-align: center;" ><IMG id=uploadimage height=0 width=0 src="" onload="javascript:DrawImage(this);" ></div></td>  <td width="71%"><div style="width:361px; height:80px;overflow:hidden;text-align: center;padding:30px; " >  <input style="width:208;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff; height:18" size="17" name=upfile type=file  onchange="javascript:FileChange(this.value);">  <input type="submit" value="上传" style="width:60;border:1 solid #9a9999; font-size:9pt; background-color:#ffffff; height:18" size="17"></td>  </tr>  </table>  允许上传的文件类型为:jpg|jpeg|gif|bmp|png|swf|mp3|wma|zip|rar|doc</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"], $uptypes))  //检查文件类型  {  echo "<font color='red'>不能上传此类型文件!</font>";  exit;  }  if(!file_exists($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>成功上传,鼠标移动到地址栏自动复制</font><br><table width=\"348\" cellspacing=\"0\" cellpadding=\"5\" border=\"0\" class=\"table_decoration\" align=\"center\"><tr><td><input type=\"checkbox\" id=\"fmt\" onclick=\"select_format()\"/>图片UBB代码<br/><div id=\"site\"><table border=\"0\"><tr><td valign=\"top\">文件地址:</td><td><input type=\"text\" onclick=\"sendtof(this.value)\" onmouseover=\"oCopy(this)\" style=font-size=9pt;color:blue size=\"44\" value=\"http://".$_SERVER['SERVER_NAME'].$path_parts["dirname"]."/".$destination_folder.$fname."\"/>  </td></tr></table></div><div id=\"sited\" style=\"display:none\"><table border=\"0\"><tr><td valign=\"top\">文件地址:</td><td><input type=\"text\" onclick=\"sendtof(this.value)\" onmouseover=\"oCopy(this)\" style=font-size=9pt;color:blue size=\"44\" value=\"[img]http://".$_SERVER['SERVER_NAME'].$path_parts["dirname"]."/".$destination_folder.$fname."[/img]\"/></td></tr></table></div></td></tr></table>";  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:".$fname."\r上传时间:".date('m/d/Y h:i')."\" border='0'></a>";  }  }  ?>  </center>  </body>  </html>