php的图片上传类-带水印及缩略图

12年前

一个非常好的PHP图片上传类,支持生成缩略图,支持添加水印。

开始第一步:
      创建文件夹,布局:
            annex:附件(该目录下存放上传的原图片)
                |— smallimg:存放缩略图片
                |— mark:存放水印图片
            include:存放类文件,字体(本程序代码使用的是:04B_08__.TTF)
                |— upfile.php:集成简单上传,生成缩略图及水印的类文件信息
                |— 04B_08__.TTF:字体文件
            test.php:测试文件
第二步上传类
upfile.php

<?php  class UPImages {          var $annexFolder = "annex";//附件存放点,默认为:annex          var $smallFolder = "smallimg";//缩略图存放路径,注:必须是放在 $annexFolder下的子目录,默认为:smallimg          var $markFolder = "mark";//水印图片存放处          var $upFileType = "jpg gif png";//上传的类型,默认为:jpg gif png rar zip          var $upFileMax = 1024;//上传大小限制,单位是“KB”,默认为:1024KB          var $fontType;//字体          var $maxWidth = 500; //图片最大宽度           var $maxHeight = 600; //图片最大高度           function UPImages($annexFolder,$smallFolder,$includeFolder) {                  $this->annexFolder = $annexFolder;                  $this->smallFolder = $smallFolder;                  $this->fontType = $includeFolder."/04B_08__.TTF";          }          function upLoad($inputName) {                  $imageName = time();//设定当前时间为图片名称                  if(@empty($_FILES[$inputName]["name"])) die(error("没有上传图片信息,请确认"));                  $name = explode(".",$_FILES[$inputName]["name"]);//将上传前的文件以“.”分开取得文件类型                  $imgCount = count($name);//获得截取的数量                  $imgType = $name[$imgCount-1];//取得文件的类型                  if(strpos($this->upFileType,$imgType) === false) die(error("上传文件类型仅支持 ".$this->upFileType." 不支持 ".$imgType));                  $photo = $imageName.".".$imgType;//写入数据库的文件名                  $uploadFile = $this->annexFolder."/".$photo;//上传后的文件名称                  $upFileok = move_uploaded_file($_FILES[$inputName]["tmp_name"],$uploadFile);                  if($upFileok) {                          $imgSize = $_FILES[$inputName]["size"];                          $kSize = round($imgSize/1024);                          if($kSize > ($this->upFileMax*1024)) {                                  @unlink($uploadFile);                                  die(error("上传文件超过 ".$this->upFileMax."KB"));                          }                  } else {                          die(error("上传图片失败,请确认你的上传文件不超过 $upFileMax KB 或上传时间超时"));                  }                  return $photo;          }          function getInfo($photo) {                  $photo = $this->annexFolder."/".$photo;                  $imageInfo = getimagesize($photo);                  $imgInfo["width"] = $imageInfo[0];                  $imgInfo["height"] = $imageInfo[1];                  $imgInfo["type"] = $imageInfo[2];                  $imgInfo["name"] = basename($photo);                  return $imgInfo;          }          function smallImg($photo,$width=128,$height=128) {                  $imgInfo = $this->getInfo($photo);                  $photo = $this->annexFolder."/".$photo;//获得图片源                  $newName = substr($imgInfo["name"],0,strrpos($imgInfo["name"], "."))."_thumb.jpg";//新图片名称                  if($imgInfo["type"] == 1) {                          $img = imagecreatefromgif($photo);                  } elseif($imgInfo["type"] == 2) {                          $img = imagecreatefromjpeg($photo);                  } elseif($imgInfo["type"] == 3) {                          $img = imagecreatefrompng($photo);                  } else {                          $img = "";                  }                  if(empty($img)) return False;                  $width = ($width > $imgInfo["width"]) ? $imgInfo["width"] : $width;                   $height = ($height > $imgInfo["height"]) ? $imgInfo["height"] : $height;                   $srcW = $imgInfo["width"];                   $srcH = $imgInfo["height"];                   if ($srcW * $width > $srcH * $height) {                          $height = round($srcH * $width / $srcW);                  } else {                          $width = round($srcW * $height / $srcH);                  }                  if (function_exists("imagecreatetruecolor")) {                          $newImg = imagecreatetruecolor($width, $height);                          ImageCopyResampled($newImg, $img, 0, 0, 0, 0, $width, $height, $imgInfo["width"], $imgInfo["height"]);                  } else {                          $newImg = imagecreate($width, $height);                          ImageCopyResized($newImg, $img, 0, 0, 0, 0, $width, $height, $imgInfo["width"], $imgInfo["height"]);                  }                  if ($this->toFile) {                          if (file_exists($this->annexFolder."/".$this->smallFolder."/".$newName)) @unlink($this->annexFolder."/".$this->smallFolder."/".$newName);                          ImageJPEG($newImg,$this->annexFolder."/".$this->smallFolder."/".$newName);                          return $this->annexFolder."/".$this->smallFolder."/".$newName;                  } else {                          ImageJPEG($newImg);                  }                  ImageDestroy($newImg);                  ImageDestroy($img);                  return $newName;          }          function waterMark($photo,$text) {                  $imgInfo = $this->getInfo($photo);                  $photo = $this->annexFolder."/".$photo;                  $newName = substr($imgInfo["name"], 0, strrpos($imgInfo["name"], ".")) . "_mark.jpg";                  switch ($imgInfo["type"]) {                          case 1:                                  $img = imagecreatefromgif($photo);                          break;                          case 2:                                  $img = imagecreatefromjpeg($photo);                          break;                          case 3:                                  $img = imagecreatefrompng($photo);                          break;                          default:                                  return False;                  }                  if (empty($img)) return False;                  $width = ($this->maxWidth > $imgInfo["width"]) ? $imgInfo["width"] : $this->maxWidth;                   $height = ($this->maxHeight > $imgInfo["height"]) ? $imgInfo["height"] : $this->maxHeight;                   $srcW = $imgInfo["width"];                   $srcH = $imgInfo["height"];                   if ($srcW * $width > $srcH * $height) {                          $height = round($srcH * $width / $srcW);                  } else {                          $width = round($srcW * $height / $srcH);                  }                  if (function_exists("imagecreatetruecolor")) {                          $newImg = imagecreatetruecolor($width, $height);                          ImageCopyResampled($newImg, $img, 0, 0, 0, 0, $width, $height, $imgInfo["width"], $imgInfo["height"]);                  } else {                          $newImg = imagecreate($width, $height);                          ImageCopyResized($newImg, $img, 0, 0, 0, 0, $width, $height, $imgInfo["width"], $imgInfo["height"]);                  }                                    $white = imageColorAllocate($newImg, 255, 255, 255);                  $black = imageColorAllocate($newImg, 0, 0, 0);                  $alpha = imageColorAllocateAlpha($newImg, 230, 230, 230, 40);                  ImageFilledRectangle($newImg, 0, $height-26, $width, $height, $alpha);                  ImageFilledRectangle($newImg, 13, $height-20, 15, $height-7, $black);                  ImageTTFText($newImg, 4.9, 0, 20, $height-14, $black, $this->fontType, $text[0]);                  ImageTTFText($newImg, 4.9, 0, 20, $height-6, $black, $this->fontType, $text[1]);                  if($this->toFile) {                          if (file_exists($this->annexFolder."/".$this->markFolder."/".$newName)) @unlink($this->annexFolder."/".$this->markFolder."/".$newName);                          ImageJPEG($newImg,$this->annexFolder."/".$this->markFolder."/".$newName);                          return $this->annexFolder."/".$this->markFolder."/".$newName;                  } else {                          ImageJPEG($newImg);                  }                  ImageDestroy($newImg);                  ImageDestroy($img);                  return $newName;          }  }  ?>

第三步:测试上传类
test.php
<?php  $annexFolder = "annex";  $smallFolder = "smallimg";  $markFolder = "mark";  $includeFolder = "include";  require("./".$includeFolder."/upfile.php");  $img = new UPImages($annexFolder,$smallFolder,$includeFolder);   $text = array("www.goldtimes.net","all rights reserved");  if(@$_GET["go"]) {          $photo = $img->upLoad("upfile");          $img->maxWidth = $img->maxHeight = 350;//设置生成水印图像值          $img->toFile = true;          $newSmallImg = $img->smallImg($photo);          $newMark = $img->waterMark($photo,$text);          echo "<img src='http://blog.163.com/kong_qing_feng/blog/".$newSmallImg."' border='0'><br><br>";          echo "<img src='http://blog.163.com/kong_qing_feng/blog/".$newMark."' border='0'><br><br>";          echo "<a href='http://blog.163.com/kong_qing_feng/blog/./test.php'>继续上传</a>";  } else {  ?>  <form method="post" action="./test.php?go=go" enctype="multipart/form-data">  <input type="file" name="upfile"><br><br>  <input type="submit" value="上传">  </form>  <?php  }  ?>