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;
}
}
?>