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<?php

class more_file_upload{

const FILE_PATH='/uploadfile/';//默认文件上传的目录，请自行修改

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='<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！';

self::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;

}

}

?>