php 文件上传类

<?php
 /**
  * 文件上传类
  * 2011/9/22
  * kcj
  * */
 class UpFile{
     private  $filePath;                             //文件目的路径 
     private  $fileField;                            //默认$_FILES[$fileField],通过$_FILES环境变量获取上传文件信息 
     private  $originName;                           //源文件名 
     private  $tmpFileName;                          //临时文件名 
     private  $fileType;                             //文件类型 
     private  $fileSize;                             //文件大小 
     private  $newFileName;                          //新文件名 
     private  $allowType=array('jpg','gif','png');   // 
     private  $maxSize=2000000;                      //允许文件上传的最大度是2M 
     private  $isUserDefName=false;                  //是否采用用户自定义名 
     private  $userDefName;                          //用户定义名称 
     private  $isRandName=true;                      //是否随机命名 
     private  $randName;                             //系统随机名称 
     private  $errorNum=0;                           //错误号 
     private  $isCoverModer=true;                    //是否覆盖模式 
     
     function  __construct($options=array()){
         $this->setOptions($options);        //设置上传时属性列表 
     }
     
     function uploadFile($filefield){
         $this->setOption('errorNum',0);                //设置错误位 
         $this->setOption('fileField',$filefield);      //设置fileField 
         $this->setFiles();                             //设置文件信息 
         $this->checkValid();                           //判断合法性 
         $this->checkFilePath();                        //检查文件路径 
         $this->setNewFileName();                       //设置新的文件名 
         if($this->errorNum<0)
         return $this->errorNum;
      return  $this->copyFile();  //上传文件 
     }
     private  function setOptions($options=array()){
         foreach ($options as $key=>$val){
             if(!in_array($key,array('filePath','fileField','originName','allowType','maxSize','isUserDefName','userDefName','isRandName','randName'))) 
             continue;
             $this->setOption($key,$val);
         }
     }
     private function setFiles(){
         if($this->getFileErrorFromFILES!=0){
             $this->setOptions('errorNum',-1);
             return $this->errorNum;
         }
         $this->setOption('originName',$this->getFileNameFromFILES());
         $this->setOption('tmpFileName',$this->getTmpFileNameFromFILES());
         $this->setOption('fileType',$this->getFileTypeFromFILES());
         $this->setOption('fileSize',$this->getFileSizeFromFILES());
     
     }
     private function setOption($key,$val){
         $this->$key=$val;
     }
     private  function setNewFileName(){
         if($this->isRandName==false&&$this->isUserDefName==false){
             $this->setOption('newFileName',$this->originName);
         }elseif ($this->isRandName==true&&$this->isUserDefName=false){
             $this->setOption('newFileName',$this->proRandName().'.'.$this->fileType);
         }elseif ($this->isRandName==false&&$this->isUserDefName=true){
             $this->setOption('newFileName',$this->userDefName);
         }else {
             $this->setOption('errorNum',-4);
         }
     }
     private function checkValid(){
         $this->checkFileSize();
         $this->checkFileType();
     }
     private function checkFileType(){
         if(!in_array($this->fileType,$this->allowType)){
             $this->setOption('errorNum',-2);
         }else {
             return $this->errorNum;
         }
     }
     private  function checkFileSize(){
         if($this->fileSize>$this->maxSize){
             $this->setOption('errorNum',-3);
         }else {
             return $this->errorNum;
         }
     }
     private  function checkFilePath(){
         if(!file_exists($this->filePath)){
             if($this->isCoverModer){
                 $this->makePath();
             }else {
                 $this->setOption('errorNum',-6);
             }
         }
     }
     private function proRandName(){
         $tmpStr= "abcdefghijklmnopqrstuvwxyz0123456789";
         $str="";
         for ($i=0;$i<8;$i++){
             $num=rand(0,strlen($tmpStr));
             $str.=$tmpStr[$num];
         }
         return $str;
     }
     private function makePath(){
         if(!@mkdir($this->filePath,0755)){
             $this->setOption('errorNum',-7);
         }
     }
     private function copyFile(){
         $filePath=$this->filePath;
         if($filePath[strlen($filePath)-1]!='/'){
             $filePath.='/';
         }
         $filePath.=$this->newFileName;
         if(!@move_uploaded_file($this->tmpFileName,$filePath)){
             $this->setOption('errorNum',-5);
         }
         return  $this->errorNum;
     }
     function getNewFileName(){
        return   $this->newFileName;
     }
     private function getFileErrorFromFILES(){
         return  $this->fileField['error'];
     }
     private function getFileTypeFromFILES(){
         $str=$this->fileField['name'];
         $aryStr=split("/.",$str);                //将字符串分割到数组中 
         $ret=strtolower($aryStr[count($aryStr)-1]);
         return  $ret;
     }
     private function getFileNameFromFILES(){
         return $this->fileField['name'];
     }
     private function getTmpFileNameFromFILES(){
         return $this->fileField['tmp_name'];
     }
     private function getFileSizeFromFILES(){
         return $this->fileField['size'];
     }
     public function getErrorMsg(){
         $str="上传文件出错：";
         switch ($this->errorNum){
             case -1:
                 $str.="未知错误！";
                 break;
             case -2:
                 $str.="未允许类型！";
                 break;
             case -3:
                 $str.="文件过大！";
                 break;
             case -4:
                 $str.="产生文件名出错！";
                 break;
             case -5:
                 $str.="上传失败！";
                 break;
             case -6:
                 $str.="目录不存在！";
                 break;
             case -7:
                 $str.="建立目录失败！";
                 break;
         }
         return $str;
     }
 }
 
 ?>
 <?php
 /**
  * 文件上传类
  * 2011/9/22
  * kcj
  * */
 class UpFile{
  private  $filePath;                             //文件目的路径
  private  $fileField;                            //默认$_FILES[$fileField],通过$_FILES环境变量获取上传文件信息
  private  $originName;                           //源文件名
  private  $tmpFileName;                          //临时文件名
  private  $fileType;                             //文件类型
  private  $fileSize;                             //文件大小
  private  $newFileName;                          //新文件名
  private  $allowType=array('jpg','gif','png');   //
  private  $maxSize=2000000;                      //允许文件上传的最大度是2M
  private  $isUserDefName=false;                  //是否采用用户自定义名
  private  $userDefName;                          //用户定义名称
  private  $isRandName=true;                      //是否随机命名
  private  $randName;                             //系统随机名称
  private  $errorNum=0;                           //错误号
  private  $isCoverModer=true;                    //是否覆盖模式
 
  function  __construct($options=array()){
   $this->setOptions($options);        //设置上传时属性列表
  }
 
  function uploadFile($filefield){
   $this->setOption('errorNum',0);                //设置错误位
   $this->setOption('fileField',$filefield);      //设置fileField
   $this->setFiles();                             //设置文件信息
   $this->checkValid();                           //判断合法性www.zhishiwu.com
   $this->checkFilePath();                        //检查文件路径
   $this->setNewFileName();                       //设置新的文件名
   if($this->errorNum<0)
   return $this->errorNum;
   return  $this->copyFile();  //上传文件
  }
  private  function setOptions($options=array()){
   foreach ($options as $key=>$val){
    if(!in_array($key,array('filePath','fileField','originName','allowType','maxSize','isUserDefName','userDefName','isRandName','randName')))
    continue;
    $this->setOption($key,$val);
   }
  }
  private function setFiles(){
   if($this->getFileErrorFromFILES!=0){
    $this->setOptions('errorNum',-1);
    return $this->errorNum;
   }
   $this->setOption('originName',$this->getFileNameFromFILES());
   $this->setOption('tmpFileName',$this->getTmpFileNameFromFILES());
   $this->setOption('fileType',$this->getFileTypeFromFILES());
   $this->setOption('fileSize',$this->getFileSizeFromFILES());
 
  }
  private function setOption($key,$val){
   $this->$key=$val;
  }
  private  function setNewFileName(){
   if($this->isRandName==false&&$this->isUserDefName==false){
    $this->setOption('newFileName',$this->originName);
   }elseif ($this->isRandName==true&&$this->isUserDefName=false){
    $this->setOption('newFileName',$this->proRandName().'.'.$this->fileType);
   }elseif ($this->isRandName==false&&$this->isUserDefName=true){
    $this->setOption('newFileName',$this->userDefName);
   }else {
    $this->setOption('errorNum',-4);
   }
  }
  private function checkValid(){
   $this->checkFileSize();
   $this->checkFileType();
  }
  private function checkFileType(){
   if(!in_array($this->fileType,$this->allowType)){
    $this->setOption('errorNum',-2);
   }else {
    return $this->errorNum;
   }
  }
  private  function checkFileSize(){
   if($this->fileSize>$this->maxSize){
    $this->setOption('errorNum',-3);
   }else {
    return $this->errorNum;
   }
  }
  private  function checkFilePath(){
   if(!file_exists($this->filePath)){
    if($this->isCoverModer){
     $this->makePath();
    }else {
     $this->setOption('errorNum',-6);
    }
   }
  }
  private function proRandName(){
   $tmpStr= "abcdefghijklmnopqrstuvwxyz0123456789";
   $str="";
   for ($i=0;$i<8;$i++){
    $num=rand(0,strlen($tmpStr));
    $str.=$tmpStr[$num];
   }
   return $str;
  }
  private function makePath(){
   if(!@mkdir($this->filePath,0755)){
    $this->setOption('errorNum',-7);
   }
  }
  private function copyFile(){
   $filePath=$this->filePath;
   if($filePath[strlen($filePath)-1]!='/'){
    $filePath.='/';
   }
   $filePath.=$this->newFileName;
   if(!@move_uploaded_file($this->tmpFileName,$filePath)){
    $this->setOption('errorNum',-5);
   }
   return  $this->errorNum;
  }
  function getNewFileName(){
     return  $this->newFileName;
  }
  private function getFileErrorFromFILES(){
   return  $this->fileField['error'];
  }
  private function getFileTypeFromFILES(){
   $str=$this->fileField['name'];
   $aryStr=split("/.",$str);                //将字符串分割到数组中
   $ret=strtolower($aryStr[count($aryStr)-1]);
   return  $ret;
  }
  private function getFileNameFromFILES(){
   return $this->fileField['name'];
  }
  private function getTmpFileNameFromFILES(){
   return $this->fileField['tmp_name'];
  }
  private function getFileSizeFromFILES(){
   return $this->fileField['size'];
  }
  public function getErrorMsg(){
   $str="上传文件出错：";
   switch ($this->errorNum){
    case -1:
     $str.="未知错误！";
     break;
    case -2:
     $str.="未允许类型！";
     break;
    case -3:
     $str.="文件过大！";
     break;
    case -4:
     $str.="产生文件名出错！";
     break;
    case -5:
     $str.="上传失败！";
     break;
    case -6:
     $str.="目录不存在！";
     break;
    case -7:
     $str.="建立目录失败！";
     break;
   }
   return $str;
  }
 }
 
?>
 
 
 
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