PHP多文件上传类实例

<?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;
}
}
?>