適用於初學者的簡易PHP檔案上傳類_php技巧

本文執行個體講述了PHP多檔案上傳類，分享給大家供大家參考。具體如下：

<?phpclass Test_Upload{   protected $_uploaded = array();  protected $_destination;    protected $_max = 1024000;  protected $_messages = array();  protected $_permited = array(                'image/gif',                'image/jpeg',                'image/pjpeg',                'image/png'    );  protected $_renamed = false;     /**   *    * @param mix $path   *    */  public function __construct($path){         if (!is_dir($path) || !is_writable($path)){      throw new Exception("檔案名稱不可寫，或者不是目錄！");    }    $this->_destination = $path;    $this->_uploaded = $_FILES;  }  /**   * 移動檔案   *    */  public function move(){         $filed = current($this->_uploaded);            $isOk = $this->checkError($filed['name'], $filed['error']);    //debug ok    if ($isOk){      $sizeOk = $this->checkSize($filed['name'], $filed['size']);      $typeOk = $this->checkType($filed['name'], $filed['type']);      if ($sizeOk && $typeOk){                 $success = move_uploaded_file($filed['tmp_name'], $this->_destination.$filed['name']);                 if ($success){          $this->_messages[] = $filed['name']."檔案上傳成功";        }else {          $this->_messages[] = $filed['name']."檔案上傳失敗";        }      }           }  }  /**   * 查詢messages數組內容    *   */  public function getMessages(){    return $this->_messages;  }     /**   * 檢測上傳的檔案大小   * @param mix $string   * @param int $size   */  public function checkSize($filename, $size){         if ($size == 0){      return false;    }else if ($size > $this->_max){      $this->_messages[] = "檔案超出上傳限制大小".$this->getMaxsize();      return false;    }else {       return true;    }  }     /**   * 檢測上傳檔案的類型   * @param mix $filename   * @param mix $type   */  protected function checkType($filename, $type){    if (!in_array($type, $this->_permited)){      $this->_messages[] = "該檔案類型是不被允許的上傳類型";      return false;    }else {      return true;    }  }     /**   * 擷取檔案大小   *    */  public function getMaxsize(){    return number_format($this->_max / 1024, 1).'KB';  }     /**   * 檢測上傳錯誤   * @param mix $filename   * @param int $error   *    */  public function checkError($filename, $error){    switch ($error){      case 0 : return true;      case 1 :      case 2 : $this->_messages[] = "檔案過大！"; return true;      case 3 : $this->_messages[] = "錯誤上傳檔案！";return false;      case 4 : $this->_messages[] = "沒有選擇檔案!"; return false;      default : $this->_messages[] = "系統錯誤!"; return false;    }  }}?>

希望本文所述對大家的php程式設計有所協助。