php檔案上傳（強大檔案圖片上傳類）

/*
 * created on 2010-6-21
 *
 * the class for image to upload
 *
 * made by s71ence
 *
 * @$user_id
 * @$max_file_size
 * @$max_image_side
 * @$destination_folder
 *
 * return:
 * @$_cookie['img_path']
 * @$img_unfind
 * @$img_type
 * @$mkdir_warry
 * @$img_side_too_big
 * @$img_exist
 * @$img_move
 * @$img_upload_sucess
 */
 

代碼如下

複製代碼

header('content-type:text/html;charset=utf-8');    class image_upload extends fn_function  {  private $user_id;  private $max_file_size; //allow the image's size  private $max_image_side; //allow the image's side  private $destination_folder; //image's storage path  private $img_preview;  private $img_preview_size;  private $cookie_set; //the cookie's name  function __construct($user_id,$max_file_size,$max_image_side,$destination_folder,$img_preview,$img_preview_size,$cookie_set)  {   $this->user_id=$user_id;   $this->max_file_size=$max_file_size;   $this->max_image_side=$max_image_side;   $this->destination_folder=$destination_folder;   $this->img_preview=$img_preview;   $this->img_preview_size=$img_preview_size;   $this->cookie_set=$cookie_set;   $this->get_date();   $this->get_image_type();  }  private function get_date()  {   $this->date=fn_function::get_server_date();   return $this->date;  }  function get_image_type()  {   $this->up_img_types=array(             'image/jpg',             'image/jpeg',             'image/png',             'image/pjpeg',             'image/gif',             'image/bmp',             'image/x-png'         );   return $this->up_img_types;  }  function upload_image()  {   if ($_server['request_method'] == 'post')   {    //check the iamge is exist    if (!is_uploaded_file($_files["upfile"]["tmp_name"]))    {     return $img_unfind=fn_function::alert_msg('圖片不存在!');     exit;       }       $file = $_files["upfile"];    //check the iamge's size       if($this->max_file_size < $file["size"])       {        return $img_side_too_big=fn_function::alert_msg('圖片大小超過系統允許最大值!');        exit;       }       //check the iamge's type       if(!in_array($file["type"], $this->up_img_types))       {        return $img_type=fn_function::alert_msg('圖片類型不符!');        exit;       }       if(!file_exists($this->destination_folder))       {        if(!fn_function::mkdirs($this->destination_folder))        {         return $mkdir_warry=fn_function::alert_msg('目錄建立失敗!');         exit;        }       }       $file_name=$file["tmp_name"];       $image_size = getimagesize($file_name);       $pinfo=pathinfo($file["name"]);       $file_type=$pinfo['extension'];       $destination = $this->destination_folder.time().".".$file_type;    setcookie($this->cookie_set, $destination);    if($image_size[0]>$this->max_image_side || $image_size[1]>$this->max_image_side)    {     return $img_side_too_big=fn_function::alert_msg('圖片解析度超過系統允許最大值!');     exit;    }    $overwrite="";    if (file_exists($destination) && $overwrite != true)    {     return $img_exist=fn_function::alert_msg('同名檔案已經存在了!');     exit;       }       if(!move_uploaded_file ($file_name, $destination))       {        return $img_move=fn_function::alert_msg('移動檔案出錯!');        exit;       }    $img_upload_sucess="<font color=red face=微軟雅黑>上傳成功</font><br>";    if($this->img_preview==1)    {     $img_src="<img src="".$destination."" width=".($image_size[0]*$this->img_preview_size)." height=".($image_size[1]*$this->img_preview_size);     $img_upload_sucess.=$img_src;    }       return $img_upload_sucess;   }  }  function __destruct()  {   //clear  }  }