<?php /* PHP多文件上传类 修改：Linvo 2008-2-15 */ class more_file_upload{     const FILE_PATH='../upfileclass/uploadfile/';     var $file_type;     var $file_type_array;     var $file_type_real_array;     var $file_type_string;     var $file_name;     var $file_size;     var $file_tmp_name;     var $file_error;     var $handledate;     var $totalsize=0;   function __construct($file_name,$file_error,$file_size,$file_tmp_name,$file_type){     $this->handledate=date('m-d-Y');     if (!empty($file_name)){         $this->$file_name = $file_name;         $this->$file_error = $file_error;         $this->$file_size = $file_size;         $this->$file_tmp_name = $file_tmp_name;         $this->$file_type = $file_type;         $this->$file_type_array = array('/', 'image/gif', 'image/jpg', 'image/jpeg', 'image/pjpeg', 'image/png');         $this->$file_type_real_array = array(0.1, 'jpg'=>74707370, 'gif'=>7173, 'bmp'=>6677, 'png'=>807871);         $this->show_execute_message($this->$file_error,$this->$file_name,$this->$file_type,$this->$file_size);     } }   function __destruct(){     $this->$file_name = NULL;     $this->$file_error = NULL;     $this->$file_size = NULL;     $this->$file_tmp_name = NULL;     $this->$file_type = NULL;     $this->$totalsize = 0; }   function show_execute_message($smfileerror,$smfilename,$smfiletype,$smfilesize){ if($smfileerror>0){     switch ($smfileerror){     case 1: $smfilemessage='<strong>文件超过服务器的约定大小！</strong>';break;     case 2: $smfilemessage ='<strong>文件超过指定的文件大小！</strong>';break;     case 3: $smfilemessage='<strong>文件只上传了部分！</strong>';break;     case 4: echo "$this->$file_name ".'文件上传失败！<br/>';break;     }     self::__destruct(); }else{     $smfiletypeflag = array_search($smfiletype,$this->$file_type_array);   //进行真实格式验证 if($smfiletypeflag != false){ $file = fopen($this->$file_tmp_name, "rb"); $bin = fread(file, 10); fclose($file); $strInfo = @unpack("c10chars", $bin); $typeCode = intval($strInfo['chars1'].$strInfo['chars2']); $smfiletypeflag = array_search($typeCode, $this->$file_type_real_array); if($smfiletypeflag == false){ //判断是否是png图片 $typeCode = intval($strInfo['chars2'].$strInfo['chars3'].$strInfo['chars4']); $smfiletypeflag = array_search($typeCode, $this->$file_type_real_array); if($smfiletypeflag == false){ //判断是否是jpg图片 $$typeCode = intval($strInfo['chars7'].$strInfo['chars8'].$strInfo['chars9'].$strInfo['chars10']); $smfiletypeflag = array_search($typeCode, $this->$file_type_real_array); } } }   if($smfiletypeflag == false){ $smfilemessage='<strong>文件类型不对，请核实！</strong>'; self::__destruct(); }else{ $resflag = $$this->move_file($$this->$file_tmp_name,$this->$file_name); if ($resflag == 1){ $smfilemessage = '文件上传成功！'; $this->totalsize +=  intval($smfilesize); self::__destruct(); }else{ $smfilemessage = '<strong>文件上传失败！</strong>'; self::__destruct(); } } }   $$smfilesizeformat = $this->size_BKM($smfilesize); echo '<tr> <td align="left" >'.$smfilename.'</td> <td align="center" >'.$smfiletype.'</td> <td align="center" >'.$smfilesizeformat.'</td> <td align="center" >'.smfilemessage.'</td> </tr>'; }   function move_file($mvfiletmp,$mvfilename){ //移动文件 $mvfilenamearr = explode('.',basename($mvfilename)); $mvfilenamearr[0] = $this->rand_string(); $mvfilename = implode('.',$mvfilenamearr);   if (is_uploaded_file($mvfiletmp)){ $uploadfile = self::FILE_PATH."$mvfilename"; $result = move_uploaded_file($mvfiletmp,$uploadfile); return $result; } }   function rand_string(){ $string = md5(uniqid(rand().microtime())); return $string; }   function size_BKM($size){ // B/KB/MB单位转换 if($size < 1024) { $size_BKM = (string)$size . " B"; } elseif($size < (1024 * 1024)) { $size_BKM = number_format((double)($size / 1024), 1) . " KB"; }else { $size_BKM = number_format((double)($size / (1024*1024)),1)." MB"; } return $size_BKM; } } ?>