/*
????多文件上傳類
????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?$handledate;
????static?$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;
????????$this->file_type?=?NULL;
????????self::$totalsize?=?0;
????}
????
????function?show_execute_message($smfileerror,$smfilename,$smfiletype,$smfilesize){
????????if($smfileerror>0){
????????????switch?($smfileerror){
????????????????case?1:?$smfilemessage='文件超過(guò)服務(wù)器的約定大??！';break;
????????????????case?2:?$smfilemessage='文件超過(guò)指定的文件大??！';break;
????????????????case?3:?$smfilemessage='文件只上傳了部分！';break;
????????????????case?4:?echo?"$this->file_name?".'文件上傳失?。?br>';break;
????????????}
????????????self::__destruct();???????????????????
????????}else{
????????????$smfiletypeflag?=?array_search($smfiletype,$this->file_type_array);

????????????//進(jìn)行真實(shí)格式驗(yàn)證
????????????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($smfiletypeflag?==?false){?//判斷是否是png圖片
????????????????????$typeCode?=?intval($strInfo['chars2'].$strInfo['chars3'].$strInfo['chars4']);
????????????????????$smfiletypeflag?=?array_search($typeCode,?$this->file_type_real_array);
????????????????????if($smfiletypeflag?==?false){?//判斷是否是jpg圖片
????????????????????????$typeCode?=?intval($strInfo['chars7'].$strInfo['chars8'].$strInfo['chars9'].$strInfo['chars10']);
????????????????????????$smfiletypeflag?=?array_search($typeCode,?$this->file_type_real_array);
????????????????????}
????????????????}
????????????}

????????????if($smfiletypeflag?==?false){
????????????????$smfilemessage='文件類型不對(duì)，請(qǐng)核實(shí)！';
????????????????self::__destruct();????????
????????????}else{
????????????????$resflag?=?$this->move_file($this->file_tmp_name,$this->file_name);
????????????????if?($resflag?==?1){
????????????????????$smfilemessage?=?'文件上傳成功！';
????????????????????self::$totalsize?+=?intval($smfilesize);
????????????????????self::__destruct();
????????????????}else{
????????????????????$smfilemessage?=?'文件上傳失?。?/strong>';
????????????????????self::__destruct();
????????????????}
????????????}
????????}

????????$smfilesizeformat?=?$this->size_BKM($smfilesize);
????????echo?'
????????????'.$smfilename.'
???????????????'.$smfiletype.'
???????????????'.$smfilesizeformat.'
???????????????'.$smfilemessage.' ????
????????????';????????????????
????}
????
????function?move_file($mvfiletmp,$mvfilename){?//移動(dòng)文件
????????$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($size){?//?B/KB/MB單位轉(zhuǎn)換
????????if($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;
????}
}