thinkphp file upload class

/**
*This is a file upload class, used to process uploaded files, pictures, etc., and can automatically generate thumbnails and add watermarks
*/
// +--------------------------------- ----------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +------------------------------------------------ --------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +- -------------------------------------------------- ------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----- -------------------------------------------------- ---------------
// | Author: hxsml
// +------------------------ --------------------------------------------------
// $ Id: UploadFile.class.php v1.0
/**
+------------------------------------------------ ----------------------------------
* File upload class
*
* Modification:
* When uploading multiple files, fileinfo will be Array with form name as key
+--------------------------------------------- ------------------------------------
* @category ORG
* @package ORG
* @subpackage Net
* @author hxsml
* @version v1.0
+----------------------------------- --------------------------------------------------
*/
class UploadFile {//Start of class definition
// Maximum size of uploaded files
Public $maxSize = -1;
// Whether to support multiple File upload
public $supportMulti = true;
// File suffixes allowed to be uploaded
// Leave blank without suffix checking
public $allowExts = array();
// File types allowed to be uploaded
// Leave blank without checking
public $allowTypes = array();
// Use thumbnail processing for uploaded images
public $thumb = false;
// Gallery class package path
public $imageClassPath = 'ORG.Util.Image';
// Thumbnail maximum width
public $thumbMaxWidth;
// Maximum thumbnail height
public $thumbMaxHeight;
// Thumbnail prefix
public $thumbPrefix = 'thumb_';
public $thumbSuffix = '';
// Thumbnail save Path
public $thumbPath = '';
// Thumbnail file name
public $thumbFile='';
// Whether to remove the original image
public $thumbRemoveOrigin = false;
// Upload compressed image file
public $zipImages = false;
// Enable saving files in subdirectories
public $autoSub = false;
// You can use hash date to create subdirectories
public $subType = 'hash';
public $dateFormat = 'Ymd' ;
public $hashLevel = 1; // Directory level of hash
// Upload file saving path
public $savePath = '';
public $autoCheck = true; // Whether to automatically check attachments
// Whether to overwrite files with the same name
public $uploadReplace = false;
// Upload file naming rules
// For example, it can be time uniqid com_create_guid, etc.
// It must be a function name without any parameters. You can use a custom function
public $saveRule = '';
// Upload file Hash rule function name
// For example, it can be md5_file sha1_file, etc.
public $hashType = 'md5_file';
// Error message
private $error = '';
// File information of successful upload
private $uploadFileInfo ;
/**
+------------------------------------------------ ----------
* Architectural function
+---------------------------------- --------------------------
* @access public
+------------------- ---------------------------------------
*/
public function __construct($maxSize='',$allowExts='',$allowTypes='',$savePath='',$saveRule='') {
if (!empty($maxSize) && is_numeric($maxSize)) {
                                                          use using using ’s ’ s ’ s to use ’s ’ s             ‐ ‐ ‐‐‐‐‐                                                              
$this->allowExts = array_map('strtolower',$allowExts);
        }else {
                $this->allowExts = explode(',',strtolower($allowExts));
            }
        }
        if(!empty($allowTypes)) {
            if(is_array($allowTypes)) {
                $this->allowTypes = array_map('strtolower',$allowTypes);
            }else {
                $this->allowTypes = explode(',',strtolower($allowTypes));
            }
        }
        if(!empty($saveRule)) {
            $this->saveRule = $saveRule;
        }else{
            $this->saveRule=C('UPLOAD_FILE_RULE');
        }
        $this->savePath = $savePath;
    }
    /**
+------------------------------------------------ ----------
* Upload a file
+---------------------------------- --------------------------
* @access public
+------------------ ----------------------------------------
* @param mixed $name data
* @param string $value Data table name
+---------------------------------------- ------------------
* @return string
+------------------------- ----------------------------------
* @throws ThinkExecption
+---------- ------------------------------------------------
*/
    private function save($file) {
        $filename = $file['savepath'].$file['savename'];
        if(!$this->uploadReplace && is_file($filename)) {
            // 不覆盖同名文件
            $this->error='文件已经存在！'.$filename;
            return false;
        }
        // 如果是图像文件 检测文件格式
        if( in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png','swf')) && false === getimagesize($file['tmp_name'])) {
            $this->error = '非法图像文件';
            return false;
        }
        if(!move_uploaded_file($file['tmp_name'], $this->auto_charset($filename,'utf-8','gbk'))) {
            $this->error = '文件上传保存错误！';
            return false;
        }
        if($this->thumb && in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png'))) {
            $image =  getimagesize($filename);
            if(false !== $image) {
                //是图像文件生成缩略图
                $thumbWidth=explode(',',$this->thumbMaxWidth);
                $thumbHeight=explode(',',$this->thumbMaxHeight);
                $thumbPrefix=explode(',',$this->thumbPrefix);
                $thumbSuffix = explode(',',$this->thumbSuffix);
                $thumbFile=explode(',',$this->thumbFile);
                $thumbPath    =  $this->thumbPath?$this->thumbPath:$file['savepath'];
                // 生成图像缩略图
                import($this->imageClassPath);
                $realFilename  =  $this->autoSub?basename($file['savename']):$file['savename'];
                for($i=0,$len=count($thumbWidth); $i<$len; $i++) {
                    $thumbname=$thumbPath.$thumbPrefix[$i].substr($realFilename,0,strrpos($realFilename, '.')).$thumbSuffix[$i].'.'.$file['extension'];
                    Image::thumb($filename,$thumbname,'',$thumbWidth[$i],$thumbHeight[$i],true);
                }
                if($this->thumbRemoveOrigin) {
                    // 生成缩略图之后删除原图
                    unlink($filename);
                }
            }
        }
        if($this->zipImags) {
            // TODO 对图片压缩包在线解压
        }
        return true;
    }
    /**
+------------------------------------------------ ----------
* Upload all files
+---------------------------------- --------------------------
* @access public
+------------------ ----------------------------------------
* @param string $savePath Upload file to save Path
+-------------------------------------------------- ----------
* @return string
+-------------------------------- --------------------------
* @throws ThinkExecption
+----------------- ----------------------------------------
*/
    public function upload($savePath ='') {
        //如果不指定保存文件名，则由系统默认
        if(empty($savePath))
            $savePath = $this->savePath;
        // 检查上传目录
        if(!is_dir($savePath)) {
            // 检查目录是否编码后的
            if(is_dir(base64_decode($savePath))) {
                $savePath=base64_decode($savePath);
            }else{
                // 尝试创建目录
                if(!mkdir($savePath)){
                    $this->error  =  '上传目录'.$savePath.'不存在';
                    return false;
                }
            }
        }Else {(if (! IS_WRITEable ($ savepath)) {
$ this- & gt; error = 'Upload directory'. $ savepath. ay (); L $ isupload = false;
// Get the uploaded file information
// For the $ _Files array information processing
$ Files

=

$ This- & GT; Dealfiles ($ _ Files); => $file) {
                                                                                                                                                                                           ‐ $key ;
                                                                                                                                       >getSaveName($file);                        return false; Upload file                                                                                                if(!$this->save($file)) return false;                       $file[' hash'] = $fun($this->auto_charset($file['savepath'].$file['savename'],'utf-8','gbk'));                                                                                                                                                         Save file information for other places to call unset ($ file ['tmp_name'], $ file ['error']); $ FileInfo [$ Key] = $ file; if($isUpload) {
                                                                     $this-> ;
                return false;
        }
}
/**
+------------------------------------------------ ----------
* Uploading files in a single upload field supports multiple attachments
+-------------------------- --------------------------------
* @access public
+----------- --------------------------------------------------
* @ param array $file Upload file information
* @param string $savePath Upload file save path
+--------------------------------- ----------------------------
* @return string
+--------------- ------------------------------------------
* @throws ThinkExecption
+ -------------------------------------------------- --------
*/
public function uploadOne($file,$savePath=''){
                                                            using using using            out out through ’’ ’s' ’ through ’ s through through through through through‐ through ‐‐ ‐‐‐‐‐‐ and
_ to = $this->savePath;
                                                                                                                                          $this->error = 'Upload the directory'. $ Savepath. 'No';
Return false;
}} else {
if (! Is_writeable ($ savepath)) {
$ this- & gt; upload directory '. PATH. 'Not writable';                          return false; ;
                                                           file ['name'])) {
$ keys = array_keys ($ file);
$ count

=

Count ($ file ['name']);
for ($ i = 0; $ i & lt; $ count; $i++) {
                                                                                                                                               }else{
                  $fileArray[] = $ file; $file['extension'] = $this-> ;getExt($file['name']); H if ($ this-& gt; autocheck) {
if (! $ This-& gt; check ($ file))
Return false; file)) return false; $this->auto_charset( $file['savepath'].$file['savename'],'utf-8','gbk'));
            }(Unset ($ File ['tmp_name'], $ file ['error']);
$ info [] = $ file;
}
// Return the uploaded file information
Return $ info; this->error = 'No file uploaded';
Return false;
}
}
// Automatic conversion of character set supports array conversion
private function auto_charset($fContents, $from='gbk', $to=' utf-8') {
          $from = strtoupper($from) == 'UTF8' ? 'utf-8' : $from;
            $to = strtoupper($to) == 'UTF8' ? 'utf-8' : $to;
                                                                                                                                                                                                                                             ​If (is_string($fContents)) {
if (function_exists('mb_convert_en')) {
}
if (is_string($fContents)) {
return mb_convert_encoding($fContents, $to, $from) ;
                                                                                                                                                                                              } }
    } elseif (is_array($fContents)) {
foreach ($fContents as $key => $val) {
                                                                                            using           using   using  -                                  $val, $from, $to);
                                                                                                                                                             } }
        else {
              return $fContents;
        }
}

/**
+------------------------------------------------ ----------
* Convert the upload file array variable to the correct way
* *
* Modification:
* When setting name=upload[], the key is "upload", corresponding to a file containing multiple files
* * Multi-dimensional array indexed by numeric index, name=upload1..., key is the name corresponding to
* +--------------------- ----------------------------------------
* @access private
+------ -------------------------------------------------- --
* @param array $files Uploaded file variables
+----------------------------------- -----------------------
* @return array
+-------------------------- ----------------------------------------
*/
private function dealFiles($files) {
  $fileArray = array();
    foreach ($files as $field => $file){
                                         file ['name'])) {
$ keys = array_keys ($ file);
$ count

=

Count ($ file ['name']);
for ($ i = 0; $ i & lt; $ count; $i++) {
                                                                                                                                         }else{
                $fileArray[$field |
/**
+------------------------------------------------ ----------
* Get error code information
+-------------------------------- --------------------------
* @access public
+----------------- --------------------------------------------------
* @param string $errorNo Error number
+------------------------------------------------ ----------
* @return void
+---------------------------------- --------------------------
* @throws ThinkExecption
+------------------ ----------------------------------------
*/
protected function error($errorNo) {
switch($errorNo) {
case 1:
$this->error = 'The uploaded file exceeds the upload_max_filesize option limit in php.ini The value '; a Break;
case 2:
$ this-& gt; error =' The size of the upload file exceeds the value specified by the max_file_size option in the html form '; = 'Only part of the file was uploaded'; :
                  $this->error = 'Not found Temporary folder';
                  break;​ ​ ​ ​ ​ $this->error = 'Unknown upload error!';
                                                                                                                                                                                     . ($rule)) {//If no naming rules are defined, the file name will remain unchanged
       //$saveName = $filename['name'];


$saveName = date('YmdHis').rand().".".$ filename['extension'];
    }else{



                                                                                                                                                                                                                 . ".$filename ['extension'];
                                                                                                                                                                                           
           }
                                                                                                                   ->autoSub) {
                                                                                                                                                                                                                                                                                       $filename)
                                       return $saveName; dir = date($this ->dateFormat,time());                                 break;                                                    0;$i<$this->hashLevel;$i++) {
                                                                }
If(!is_dir($file['savepath '].$dir)) {                   mk_dir($file['savepath'].$dir);                                                                                                    
/**
+------------------------------------------------ ----------
* Check uploaded files
+-------------------------------- --------------------------
* @access private
+----------------- --------------------------------------------------
* @param array $file file information
+------------------------------------------------ ----------
* @return boolean
+---------------------------------- ------------------------
*/
private function check($file) {
                                                                                                                        using ‐ ’ ’ s
                 ’ ‐ ’ ’ s ‐ ‐ ‐ ‐ ‐ ‐ ,                                                                                 to >error($file['error']); ['size'])) {
$ this- & gt; error = 'Upload file size is not consistent! ';
                return false; allow! ';
Return false;
}
// Check the file type
if (! $ This- & gt; checkext ($ file [' extension ']) {
$ this- & gt; error =' Upload file type is not allowed ' ; U Return false;
}
// Check whether it is legally uploaded












($ file ['tmp_name']) {
$ This- & gt; error = 'illegal upload file!';
            return false;
        }
        return true;
    }
    /**
+------------------------------------------------ ----------
* Check whether the uploaded file type is legal
+----------------------------- --------------------------
* @access private
+-------------- --------------------------------------------------
* @param string $ type data
+------------------------------------------------ ------------
* @return boolean
+---------------------------------- --------------------------
*/
    private function checkType($type) {
        if(!empty($this->allowTypes))
            return in_array(strtolower($type),$this->allowTypes);
        return true;
    }
    /**
+------------------------------------------------ ----------
* Check whether the uploaded file suffix is ​​legal
+----------------------------- --------------------------
* @access private
+-------------- --------------------------------------------------
* @param string $ ext suffix
+------------------------------------------------ -------------
* @return boolean
+--------------------------------- ----------------------------
*/
    private function checkExt($ext) {
        if(!empty($this->allowExts))
            return in_array(strtolower($ext),$this->allowExts,true);
        return true;
    }
    /**
+------------------------------------------------ ----------
* Check whether the file size is legal
+---------------------------------- --------------------------
* @access private
+---------------- ------------------------------------------------
* @param integer $size data
+------------------------------------------------ ----------
* @return boolean
+---------------------------------- ------------------------
*/
    private function checkSize($size) {
        return !($size > $this->maxSize) || (-1 == $this->maxSize);
    }
    /**
+------------------------------------------------ ----------
* Check whether the file was submitted illegally
+---------------------------------- --------------------------
* @access private
+---------------- ------------------------------------------
* @param string $filename file Name
+------------------------------------------------------------- ----------
* @return boolean
+-------------------------------- --------------------------
*/
    private function checkUpload($filename) {
        return is_uploaded_file($filename);
    }
    /**
+------------------------------------------------ ----------
* Get the suffix of the uploaded file
+---------------------------------- --------------------------
* @access private
+---------------- ------------------------------------------
* @param string $filename file Name
+------------------------------------------------------------- ----------
* @return boolean
+-------------------------------- --------------------------
*/
    private function getExt($filename) {
        $pathinfo = pathinfo($filename);
        return $pathinfo['extension'];
    }
/**
+------------------------------------------------ ----------
* Get uploaded file information
+---------------------------------- --------------------------
* @access public
+---------------- ------------------------------------------
* @return array
+- -------------------------------------------------- -------
*/
public function getUploadFileInfo() {
return $this->uploadFileInfo;
}
/**
+------------------------------------------------ ----------
* Get the last error message
+---------------------------------- --------------------------
* @access public
+---------------- ------------------------------------------
* @return string
+- -------------------------------------------------- -------
*/
public function getErrorMsg() {
return $this-> error;
}
}

The above introduces the thinkphp file upload class, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.