Upload.class.php

<?PHP/** *================================================================== * upload.class.php file Upload class for file upload function * @ Author Wang Suping * @copyright Preach Wisdom Podcast PHP Academy 2006-2014 * @version 1.0 * March 27, 2013 0:37:15 *========================================= ========================= */classupload{Private $path;//File upload directory    Private $max _size;//upload file size limit    Private $errno;//error message number    Private $mime=Array(' image/jpeg ', ' image/png ', ' image/gif ');//allowed file types to upload    /** constructor, * @access public * @param $path the path of string upload*/     public function__construct ($path=Upload_path) {        $this->path =$path; $this->max_size = 1000000; }    /** * File Upload method, sub-directory storage file * @access public * @param $file array containing the information of the uploaded file * @return mixed successfully returned the uploaded file name, failed to return F Alse*/     public functionUp$file){        //determine if a file is uploaded via HTTP POST to prevent malicious spoofing        /*if (! is_uploaded_file ($file [' tmp_name '])) {$this->errno = 5;        Setting the error message number to 5 indicates that the illegal upload return is false; }        */        //determine if the browser is successfully uploaded to the server side        if($file[' error '] = = 0) {            #Upload to Temp folder successfully, process/upload type judgment for temp file            if(!In_array($file[' type '],$this-Mime)) {                #type is not correct                $this->errno =-1; return false; }            //Determine file size            if($file[' size '] >$this-Max_size) {                #upload limits in size beyond the configuration file                $this->errno =-2; return false; }            //get the directory where the uploaded files are stored            $sub _path=Date(' YMD '). ' /‘; if(!Is_dir($this->path.$sub _path)) {                #the directory does not exist, creating the                mkdir($this->path.$sub _path); }                        //file rename, by current date + random number + suffix name            $file _name=Date(' Ymdhis ').uniqid().STRRCHR($file[' name '], '. '); //ready to start Uploading.            if(Move_uploaded_file($file[' Tmp_name '],$this->path.$sub _path.$file _name)) {                #Mobile Success                return $sub _path.$file _name; } Else {                #Move failed                $this->errno =-3; return false; }        } Else {            #failed to upload to temp folder, set error number according to its error number            $this->errno =$file[' error ']; return false; }            }    /** * Multiple File Upload method * @access public * @param $file array containing the uploaded file information is a two-dimensional array * @return Array successfully returned the uploaded filename , and if There's a failure, it's not too good to Handle.*/     public functionMultiup ($files){        //in multi-file upload, upload file information is also a multidimensional array, such as $_files[' userfile ' [' name '][0],$_files[' userfile '] [' name '][1]//we just need to traverse the array, Get the information for each uploaded file, call the Up method in turn        foreach($files[' name '] as $key=$value) {            #code ...            $file[' name '] =$files[' name '] [$key]; $file[' type '] =$files[' type '] [$key]; $file[' Tmp_name '] =$files[' Tmp_name '] [$key]; $file[' Error '] =$files[' Error '] [$key]; $file[' size '] =$files[' size '] [$key]; //call the up method to complete the upload            $filename[] =$this->up ($file); }        return $filename; }    /** * Get the error message and get the appropriate error prompt according to the error number * @access public * @return String returns an error message*/     public functionerror () {Switch($this-Errno) {             case-1:return' Please check your file type, currently supported type has '.implode(‘,‘,$this-mime);  break;  case-2:return' The file exceeds the size specified by the system and cannot exceed the maximum '.$this-max_size;  break;  case-3:return' File move failed ';  break;  case1:return' The uploaded file exceeds the value of the Upload_max_filesize option limit in php.ini, and its size is '.Ini_get(' upload_max_filesize ');  break;  case2:return' The size of the uploaded file exceeds the value specified by the Max_file_size option in the HTML form, and its size is '.$_post[' max_file_size '];  break;  case3:return' files are only partially uploaded ';  break;  case4:return' No files were uploaded ';  break;  case5:return' Illegal upload ';  break;  case6:return' Unable to find temp folder ';  break;  case7:return' File Write Temp folder failed ';  break; default:return' Unknown error, Supernatural event ';  break; }    }}/*Test code: Single File upload <form method= ' POST ' action= ' upload.php ' enctype= ' multipart/form-data ' > <input type = ' hidden ' n  Ame= ' max_file_size ' value = ' 2000000 '/> <input type = ' FILE ' name = ' picture '/> <input type = ' Submit ' Value = ' upload '/></form> $upload = new Upload;if ($file _name = $upload->up ($_files[' picture ')) {echo ' upload succeeded, file Named ', $file _name;} else {echo ' upload failed with error message: ', $upload->error ();}*//*test code: multi-file upload <form action= "test.php" method= "POST" enctype= "multipart/form-data" > <label for= "upload picture" >  </label> <input type= "file" name= ' logos[] '/> <br/> <label for= ' upload picture ' ></label> <input type= "file" name= ' logos[] '/> <br/> <label for= ' upload picture ' ></label> <input type= ' file ' name= ' logos [] '/> <br/> <input type= ' Submit ' name= ' OK '/></form> $upload = new upload (); $filename = $upload-& Gt;multiup ($_files[' Logos '); echo ' <pre> '; Var_dump ($filename); Echo ' <pre> '; */

Upload.class.php