本文实例讲述了php多文件上传类。分享给大家供大家参考。具体如下：
代码如下:
/*
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='文件超过服务器的约定大小！';break;
    case 2: $smfilemessage ='文件超过指定的文件大小！';break;
    case 3: $smfilemessage='文件只上传了部分！';break;
    case 4: echo $this->$file_name .'文件上传失败！
';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
$$typecode = intval($strinfo['chars7'].$strinfo['chars8'].$strinfo['chars9'].$strinfo['chars10']);
$smfiletypeflag = array_search($typecode, $this->$file_type_real_array);
}
}
}
if($smfiletypeflag == false){
$smfilemessage='文件类型不对，请核实！';
self::__destruct();
}else{
$resflag = $$this->move_file($$this->$file_tmp_name,$this->$file_name);
if ($resflag == 1){
$smfilemessage = '文件上传成功！';
$this->totalsize +=  intval($smfilesize);
self::__destruct();
}else{
$smfilemessage = '文件上传失败！';
self::__destruct();
}
}
}
$$smfilesizeformat = $this->size_bkm($smfilesize);
echo '
'.$smfilename.'
'.$smfiletype.'
'.$smfilesizeformat.'
'.smfilemessage.'
';
}
function move_file($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 {
$size_bkm = (string)$size . b;
}
elseif($size {
$size_bkm = number_format((double)($size / 1024), 1) . kb;
}else
{
$size_bkm = number_format((double)($size / (1024*1024)),1). mb;
}
return $size_bkm;
}
}
?>希望本文所述对大家的php程序设计有所帮助。