Very classic PHP file upload class sharing, _PHP tutorial

A very classic PHP file upload class sharing,

File upload is a common function in project development, but the process of file upload is relatively cumbersome, as long as Wherever files are uploaded, these complex codes need to be written. In order to reduce the difficulty of writing functions in each development and to save development time, we usually encapsulate these repeatedly used pieces of code into a class.

<&#63;php 
/** 
 +----------------------------------------------------------------------------- 
 * 文件上传类 
 +----------------------------------------------------------------------------- 
 * @author Administrator 
 +----------------------------------------------------------------------------- 
 */ 
 class FileUpload{ 
   
  private $filepath;  //保存路径 
  private $allowtype=array('gif','jpg','jpeg','png','txt'); 
  private $maxsize=1000000;  //最大允许上传大小 
  private $israndname=true; //是否随机 
  private $orginame; //原始文件名 
  private $tmpname;  //临时文件名 
  private $newname;  //新文件名 
  private $filetype; //文件类型  
  private $filesize; //文件大小 
  private $errornum=''; //错误号 
  private $errormsg; //错误信息 
/** 
 +------------------------------------------------------------------------------ 
 *构造函数 
 +------------------------------------------------------------------------------ 
 * @param string $savepath  保存路径 
 * @param string $allowtype 允许类型 
 * @param string $maxsize  允许大小 
 * 
 +------------------------------------------------------------------------------ 
 */    
  function __construct($option=array()){ 
     foreach ($option as $key=>$value){ 
        
      if (!in_array($key,get_class_vars(get_class($this)))){ 
        continue; 
       } 
      $this->setOption($key, $value);  
     } 
  } 
  function uploadfile($field) { 
     $return=true; 
    if (!$this->CheckPath()) { 
      $this->errormsg=$this->geterrorNum(); 
      return false; 
    } 
    $name=$_FILES[$field]['name']; 
    $tmpname=$_FILES[$field]['tmp_name']; 
    $filesize=$_FILES[$field]['size']; 
    $error=$_FILES[$field]['error'];  
     if (is_array($name)) { 
      $errors=array(); 
       for ($i=0;$i<count($name);$i++){ 
        if ($this->getFile($name[$i],$tmpname[$i],$filesize[$i],$errors[$i])) { 
          if (!$this->CheckSize() && !$this->CheckType()) { 
            $errors=$this->getErrorNum(); 
            return false; 
            }                                 
        }else{ 
            $errors=$this->getErrorNum(); 
            return false; 
        } 
        if (!$return) { 
          $this->getFile(); 
        } 
       } 
       if ($return) { 
        $fileNames=array(); 
        for ($i=0;$i<count($name);$i++){ 
          if ($this->getFile($name[$i], $tmpname[$i], $filesize[$i], $filesize[$i])) { 
            $this->SetFileName(); 
            if (!$this->MoveFile()) { 
              $errors[]=$this->getErrorNum(); 
              $return=false; 
            }else{ 
              $fileNames[]=$this->getNewName(); 
            } 
          }         
        } 
        $this->newname=$fileNames; 
       } 
        $this->errormsg=$errors; 
        return $return; 
        
     }else{  
      if($this->getFile($name,$tmpname,filesize,$error)){ 
        if(!$this->CheckSize()){ 
          return false; 
        } 
        if(!$this->CheckType()){ 
          return false; 
        } 
         $this->SetFileName(); 
        if ($this->MoveFile()) { 
            return true; 
        }  
      }else{ 
      return false; 
      } 
        
      if (!$return) { 
      $this->setOption('ErrorNum', 0); 
      $this->errormsg=$this->geterrorNum(); 
      } 
     return $return;  
   } 
  } 
  /** 
   +------------------------------------------------------------------------ 
   *设置类属性值函数 
   +------------------------------------------------------------------------ 
   * @param mix $key 
   * @param mix $value 
   */ 
  private function setOption($key,$value){ 
    $key=strtolower($key); 
    $this->$key=$value; 
  } 
  /** 
   +--------------------------------------------------------------------------- 
   * 获取文件变量参数函数 
   +--------------------------------------------------------------------------- 
   * @param string $name 
   * @param string $tmp_name 
   * @param number $size 
   * @param number $error 
   */ 
  private function getFile($name,$tmpname,$filetype,$filesize,$error=0){  
     
    $this->setOption('TmpName', $tmpname); 
    $this->setOption('OrgiName', $name); 
    $arrstr=explode('.', $name); 
    $this->setOption('FileType', $arrstr[count($arrstr)-1]);      
    $this->setOption('FileSize', $filesize); 
    return true; 
  } 
  /** 
   +------------------------------------------------------------------------- 
   * 检查上传路径函数 
   +------------------------------------------------------------------------- 
   * @return boolean 
   */ 
  private function CheckPath(){ 
    if(empty($this->filepath)){ 
      $this->setOption('ErrorNum', -5); 
      return false; 
    } 
    if (!file_exists($this->filepath)||!is_writable($this->filepath)) { 
       if (!@mkdir($this->filepath,0755)) { 
         $this->setOption('ErrorNum',-4); 
         return false; 
       } 
    } 
    return true; 
  } 
  private function Is_Http_Post(){ 
    if (!is_uploaded_file($this->tmpname)) { 
      $this->setOption('ErrorNum',-6);  
      return false; 
    }else{ 
      return true; 
    } 
  } 
  /** 
   +-------------------------------------------------------------------- 
   *检查文件尺寸函数 
   +-------------------------------------------------------------------- 
   * @return boolean 
   */ 
  private function CheckSize(){ 
    if ($this->filesize>$this->maxsize) { 
      $this->setOption('ErrorNum', -2); 
      return false; 
    }else{ 
      return true; 
    } 
  } 
  /** 
   +--------------------------------------------------------------- 
   * 检查文件类型函数 
   +--------------------------------------------------------------- 
   * @return boolean 
   */ 
  private function CheckType(){ 
    if (in_array($this->filetype, $this->allowtype)) { 
      return true; 
    }else{ 
      $this->setOption('ErrorNum', -1); 
      return false; 
    } 
  } 
  private function SetFileName(){ 
    if ($this->israndname) { 
      $this->setOption('NewName', $this->RandName()); 
    }else{ 
      $this->setOption('NewName',$this->orginame); 
    }  
  } 
  /** 
   +----------------------------------------------------------------- 
   * 获取新文件名 
   +------------------------------------------------------------------ 
   */ 
  public function getNewName() { 
    return $this->newname; 
  } 
  private function RandName(){ 
    $rule=date("YmdHis").rand(0, 999); 
    return $rule.'.'.$this->filetype; 
  } 
  private function MoveFile(){ 
    if ($this->errornum) { 
      $filepath=rtrim($this->filaepath,'/').'/'; 
      $filepath.=$this->newname; 
      if (@move_uploaded_file($this->tmpname,$filepath)) { 
        return true; 
       }else{ 
        $this->errormsg=$this->setOption('ErrorNum',-3 ); 
       } 
    }else{ 
      return false; 
    } 
  } 
  /** 
   +---------------------------------------------------------------- 
   * 错误信息函数 
   +---------------------------------------------------------------- 
   * @return string 
   */ 
   function getErrorNum() { 
    $erstr="上传文件<font color='red'>{$this->orginame}</font>出错"; 
    switch ($this->errornum) { 
      case 4: 
       $erstr.="没有文件被上传"; 
        break; 
      case 3: 
       $erstr.="文件只被部分上传"; 
        break; 
      case 2: 
       $erstr.="上传文件超过了HTML表单MAX_FILE_SIZE指定的值"; 
        break; 
      case 1: 
       $erstr.="上传文件超过了php.ini配置文件中upload_max_filesize的值"; 
        break; 
      case 0: 
       $erstr="上传{$this->orginame}成功"; 
        break;        
      case -1: 
       $erstr="未允许的类型"; 
        break; 
      case -2: 
       $erstr.="文件过大，不能超过{$this->maxsize}个字节";  
        break; 
      case -3: 
       $erstr.="上传失败"; 
        break; 
      case -4: 
       $erstr="创建上传目录失败，请重新指定上传目录"; 
        break; 
      case -5: 
       $erstr="未指定上传路径"; 
        break; 
      case -6: 
       $erstr="非法操作"; 
        break;                    
      default: 
       $erstr.="未知错误"; 
         
    } 
    return $erstr; 
  } 
 } 
&#63;> 

The above is the entire content of this article. I hope it will be helpful to everyone in learning PHP programming.

http://www.bkjia.com/PHPjc/1127897.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1127897.htmlTechArticleA very classic PHP file upload class sharing. File upload is a common function in project development, but file upload The process is rather cumbersome, as long as there are files uploaded, they need to be compiled...