php 简单文件图片上传类

php 简单文件图片上传类

这个文件上传类可以上传gif",".jpg",".jar",".jad",".mid",".mp3",".mid",".bmp",".wav",".rm",".wmv文件格式哦，如果你还想支持其它的话可以设计$this->file_type();就OK了，。

<?php
class upload{

var $file_type;
var $file_size;
var $file_name;
var $exname;
var $datetime;

function up($post_name,$path){
 $this->file_name=$_FILES[$post_name]["name"];
 $this->exname=strtolower(substr($this->file_name,strrpos($this->file_name,".")));
 $this->file_size=$_FILES[$post_name]["size"];
 $this->file_type=array(".gif",".jpg",".jar",".jad",".mid",".mp3",".mid",".bmp",".wav",".rm",".wmv");
 $this->datetime=date("YmdHis");
 if(!in_array($this->exname,$this->file_type)){
  print("<script language='javascript'>");
  print("alert('格式不支持！');");
  print("history.back();");
  print("</script>");
  break;
 }elseif($this->file_size>"50000"){
  print("<script language='javascript'>");
  print("alert('图片大小不能超过50KB！');");
  print("history.back();");
  print("</script>");
  break;
 }else{
  move_uploaded_file($_FILES[$post_name]["tmp_name"],$path.$this->datetime.$this->exname);
  }
}

function fileName(){
   $pic=$this->datetime.$this->exname;
   return $pic;
}

}
?>
 

php 通用的树型类 可以生成任何树型结构

class tree
{
 /**
 * 生成树型结构所需要的2维数组
 * @var array
 */
 var $arr = array();

 /**
 * 生成树型结构所需修饰符号，可以换成图片
 * @var array
 */
 var $icon = array('│','├','└');

 /**
 * @access private
 */
 var $ret = '';

 /**
 * 构造函数，初始化类
 * @param array 2维数组，例如：
 * array(
 *      1 => array('id'=>'1','parentid'=>0,'name'=>'一级栏目一'),
 *      2 => array('id'=>'2','parentid'=>0,'name'=>'一级栏目二'),
 *      3 => array('id'=>'3','parentid'=>1,'name'=>'二级栏目一'),
 *      4 => array('id'=>'4','parentid'=>1,'name'=>'二级栏目二'),
 *      5 => array('id'=>'5','parentid'=>2,'name'=>'二级栏目三'),
 *      6 => array('id'=>'6','parentid'=>3,'name'=>'三级栏目一'),
 *      7 => array('id'=>'7','parentid'=>3,'name'=>'三级栏目二')
 *      )
 */
 function tree($arr=array())
 {
       $this->arr = $arr;
    $this->ret = '';
    return is_array($arr);
 }

    /**
 * 得到父级数组
 * @param int
 * @return array
 */
 function get_parent($myid)
 {
  $newarr = array();
  if(!isset($this->arr[$myid])) return false;
  $pid = $this->arr[$myid]['parentid'];
  $pid = $this->arr[$pid]['parentid'];
  if(is_array($this->arr))
  {
   foreach($this->arr as $id => $a)
   {
    if($a['parentid'] == $pid) $newarr[$id] = $a;
   }
  }
  return $newarr;
 }

    /**
 * 得到子级数组
 * @param int
 * @return array
 */
 function get_child($myid)
 {
  $a = $newarr = array();
  if(is_array($this->arr))
  {
   foreach($this->arr as $id => $a)
   {
    if($a['parentid'] == $myid) $newarr[$id] = $a;
   }
  }
  return $newarr ? $newarr : false;
 }

    /**
 * 得到当前位置数组
 * @param int
 * @return array
 */
 function get_pos($myid,&$newarr)
 {
  $a = array();
  if(!isset($this->arr[$myid])) return false;
        $newarr[] = $this->arr[$myid];
  $pid = $this->arr[$myid]['parentid'];
  if(isset($this->arr[$pid]))
  {
      $this->get_pos($pid,$newarr);
  }
  if(is_array($newarr))
  {
   krsort($newarr);
   foreach($newarr as $v)
   {
    $a[$v['id']] = $v;
   }
  }
  return $a;
 }

    /**
 * 得到树型结构
 * @param int ID，表示获得这个ID下的所有子级
 * @param string 生成树型结构的基本代码，例如："<option value=$id $selected>$spacer$name</option>"
 * @param int 被选中的ID，比如在做树型下拉框的时候需要用到
 * @return string
 */
 function get_tree($myid, $str, $sid = 0, $adds = '', $str_group = '')
 {
  $number=1;
  $child = $this->get_child($myid);
  if(is_array($child))
  {
      $total = count($child);
   foreach($child as $id=>$a)
   {
    $j=$k='';
    if($number==$total)
    {
     $j .= $this->icon[2];
    }
    else
    {
     $j .= $this->icon[1];
     $k = $adds ? $this->icon[0] : '';
    }
    $spacer = $adds ? $adds.$j : '';
    $selected = $id==$sid ? 'selected' : '';
    @extract($a);
    $parentid == 0 && $str_group ? eval("$nstr = "$str_group";") : eval("$nstr = "$str";");
    $this->ret .= $nstr;
    $this->get_tree($id, $str, $sid, $adds.$k.'&nbsp;',$str_group);
    $number++;
   }
  }
  return $this->ret;
 }
    /**
 * 同上一方法类似,但允许多选
 */
 function get_tree_multi($myid, $str, $sid = 0, $adds = '')
 {
  $number=1;
  $child = $this->get_child($myid);
  if(is_array($child))
  {
      $total = count($child);
   foreach($child as $id=>$a)
   {
    $j=$k='';
    if($number==$total)
    {
     $j .= $this->icon[2];
    }
    else
    {
     $j .= $this->icon[1];
     $k = $adds ? $this->icon[0] : '';
    }
    $spacer = $adds ? $adds.$j : '';
    
    $selected = $this->have($sid,$id) ? 'selected' : '';
    //echo $sid.'=>'.$id.' : '.$selected.' . <br/>';
    @extract($a);
    eval("$nstr = "$str";");
    $this->ret .= $nstr;
    $this->get_tree_multi($id, $str, $sid, $adds.$k.'&nbsp;');
    $number++;
   }
  }
  return $this->ret;
 }
 
 function have($list,$item){
  return(strpos(',,'.$list.',',','.$item.','));
 }
}

php 获取来路[前一页]页面分析函数

本文章提供一款功能全面的获取上一级页面的函数哦，就是来路函数了。

function getref(&$ref,&$fullref) {
  global $err,$conf,$HTTP_GET_VARS,$_GET;

  if(isset($_GET['anr'])) $refer=$_GET['anr'];
  elseif(isset($HTTP_GET_VARS['anr'])) $refer=$HTTP_GET_VARS['anr'];
  else $refer='undefined';
  if(empty($refer)) $refer='undefined';
  if(!strcmp($refer,'null')) $refer='undefined';
  $refer=urldecode($refer);
  $refer=modsec($refer);
  $refer=txtproc($refer);

  //to correct back slashes            http://111cn.netindex
  $refer=str_replace("\","/",$refer);
  //to remove unnecessary points       http://111cn.net.
  $refer=preg_replace("//./",'/',$refer);
  $refer=preg_replace("/.//",'/',$refer);
  $refer=preg_replace("/.*$/",'',$refer);
  $refer=preg_replace("/("|')*$/",'',$refer);
  //to remove unnecessary duplicates of slashes             http://111cn.net///
  $refer=preg_replace("/([^:])(/)+/",'$1/',$refer);
  $fullref=$refer;

  $refer=preg_replace("/^(https?://)(www.)?/i",'',$refer);
  $ref=preg_replace("/[?|&|#|;].*$/i",'',$refer);
  $ref=preg_replace("/(/)*$/",'',$ref);
  $ref=trim($ref);
  $ref=preg_replace("/.*$/",'',$ref);
  $ref=preg_replace("/("|')*$/",'',$ref);
  $ref=trim($ref);

  //check referrer (bad)
  if(empty($ref)) $ref='undefined';
  //search "." in domain name
  if(!preg_match("/^([^./]+.)+([^./])+/i",$ref))  $ref='undefined';
}

}

本款源码是一款php 网站同IP查询代码哦，如果你喜欢就进来看看吧。

<?php
if(function_exists('date_default_timezone_set')){
 date_default_timezone_set('Asia/Shanghai'); //设定时区
}
define("APP_ROOT",dirname(dirname(__FILE__))); //网站根目录

function visitorIP(){ //访问者IP
 if($_SERVER['HTTP_X_FORWARDED_FOR']){
    $ipa = $_SERVER['HTTP_X_FORWARDED_FOR'];
  }elseif($_SERVER['HTTP_CLIENT_IP']){
    $ipa = $_SERVER['HTTP_CLIENT_IP'];
  }else{
    $ipa = $_SERVER['REMOTE_ADDR'];
 }
 return $ipa;
}

function cleanDomain($q,$w=0){ //整理域名 $w=1过滤www.前缀 $w=0不过滤
 $q = htmlspecialchars(strtolower(trim($q)));
 if(substr($q,0,7) == "http://" || substr($q,0,8) == "https://" || substr($q,0,6) == "ftp://"){
  $q = str_replace("http:/","",$q);
  $q = str_replace("https:/","",$q);
  $q = str_replace("ftp:/","",$q);
 }
 if(substr($q,0,4) == "www." && $w==1) {
  $q = str_replace("www.","",$q);
 }
 $q = trim($q,"/");
 return $q;
}

//获取网页
class HTTPRequest
{
/*
获取网页
*/
   var $_fp;        // HTTP socket
   var $_url;        // full URL
   var $_host;        // HTTP host
   var $_protocol;    // protocol (HTTP/HTTPS)
   var $_uri;        // request URI
   var $_port;        // port
  
   // scan url
   function _scan_url()
   {
       $req = $this->_url;
      
       $pos = strpos($req, '://');
       $this->_protocol = strtolower(substr($req, 0, $pos));
      
       $req = substr($req, $pos+3);
       $pos = strpos($req, '/');
       if($pos === false)
           $pos = strlen($req);
       $host = substr($req, 0, $pos);
      
       if(strpos($host, ':') !== false)
       {
           list($this->_host, $this->_port) = explode(':', $host);
       }
       else
       {
           $this->_host = $host;
           $this->_port = ($this->_protocol == 'https') ? 443 : 80;
       }
      
       $this->_uri = substr($req, $pos);
       if($this->_uri == '')
           $this->_uri = '/';
   }
  
   // constructor
   function HTTPRequest($url)
   {
       $this->_url = $url;
       $this->_scan_url();
   }
  
   // download URL to string
   function DownloadToString()
   {
       $crlf = "rn";
       $response="";
       // generate request
       $req = 'GET ' . $this->_uri . ' HTTP/1.0' . $crlf
           .    'Host: ' . $this->_host . $crlf
           .    $crlf;
      
       // fetch
       $this->_fp = @fsockopen(($this->_protocol == 'https' ? 'ssl://' : '') . $this->_host, $this->_port);
       @fwrite($this->_fp, $req);
       while(is_resource($this->_fp) && $this->_fp && !feof($this->_fp))
           $response .= fread($this->_fp, 1024);
       @fclose($this->_fp);
      
       // split header and body
       $pos = strpos($response, $crlf . $crlf);
       if($pos === false)
           return($response);
       $header = substr($response, 0, $pos);
       $body = substr($response, $pos + 2 * strlen($crlf));
      
       // parse headers
       $headers = array();
       $lines = explode($crlf, $header);
       foreach($lines as $line)
           if(($pos = strpos($line, ':')) !== false)
               $headers[strtolower(trim(substr($line, 0, $pos)))] = trim(substr($line, $pos+1));
      
       // redirection?
       if(isset($headers['location']))
       {
           $http = new HTTPRequest($headers['location']);
           return($http->DownloadToString($http));
       }
       else
       {
           return($body);
       }
   }
}

function get_html($siteurl) {
 //将网页代码存入字符串
 $r=new HTTPRequest($siteurl);
 $htm=$r->DownloadToString();
 return $htm;
}

$visitorip = visitorIP();

$q = cleanDomain($_POST['q']);
$q_encode = urlencode($q);

$title = "同IP站点查询";

$chaxun_status = 0; //查询状态 -1是没有查询参数，0是查询出错，1是查域名，2是查IP

if(isset($_GET['action']) && trim($_GET['action']) == "do"){ //AJAX调出数据
 $ipArr = ReverseIP($q);
 if(count($ipArr)>0){
  echo '<p class="f14">在此IP找到了'.count($ipArr).'个域名，见下：</p>';
  echo '<ul class="lst">';
  for($i=0;$i<count($ipArr);$i++){
   echo '<li><a href="http://'.$ipArr[$i].'/" title="访问 '.$ipArr[$i].'" target="_blank" class="f14 l200">'.$ipArr[$i].'</a></li>';
  }
  echo '</ul><div class="cboth"></div>';
 }else{
  echo '<p class="f14">没有找到IP '.$ip.' 对应的域名记录！</p>';
 }
 die();
}

function IpToInt($Ip){ //IP转为数字
    $array=explode('.',$Ip);
    $Int=($array[0] * 256*256*256) + ($array[1]*256*256) + ($array[2]*256) + $array[3];
    return $Int;
}

function ReverseIP($q){
 $htm = get_html('http://www.ip-adress.com/reverse_ip/'.$q);
 preg_match_all('/<a href="/whois/(.*)">Whois</a>/', $htm, $tt);
 $res = $tt[1];
 return $res;
}

if(preg_match("/[a-zA-Z-_]+/si",$q)){ //如果查询的是域名
 $ip = gethostbyname($q);
 if($ip == $q){
  $ip = $visitorip;
  $chaxun_status = -1;
 }else{
  $chaxun_status = 1;
 }
}elseif(ereg("^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$",$q)){ //如果查询的是IP
 $ip = $q;
 $chaxun_status = 2;
}else{
 $ip = $visitorip;
}
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>同IP站点查询</title>
<style>
*{margin:0;padding:0;}
body{font-size:12px;font-family: Geneva, Arial, Helvetica, sans-serif;}
a img {border:0;}

.red{color:#f00;}
.center{text-align:center;}
p{padding:5px 0 6px 0;word-break:break-all;word-wrap:break-word;}
.f14{font-size:14px;}
a,a:visited{color:#0353ce;}
table {font-size:12px;}
 table th {font-size:12px;font-weight:bold;background-color:#f7f7f7;line-height:200%;padding: 0 5px;}
 table th {font-size:12px;font-weight:bold;background:#EDF7FF;padding: 0 5px;color:#014198;line-height:200%;}
.red{color:red}
.blue{color:blue}
#footer{line-height:150%;text-align:center;color:#9c9c9c;padding: 8px 0;}
 #footer a,#footer a:visited{color:#9c9c9c;}
ul.lst{padding:0;margin:0;width:100%;}
 ul.lst li{list-style-type:none;float:left;padding:0 0 0 12px;line-height:24px;height:24px;overflow:hidden;}
 ul.lst li{width:258px!important;width:270px;}
</style>
<? if($chaxun_status>0){ ?>
<SCRIPT type="text/javascript">
<!--
 var xmlHttp;
 function creatXMLHttpRequest() {
  if(window.ActiveXObject) {
   xmlHttp = new ActiveXObject('Microsoft.XMLHTTP');
  } else if(window.XMLHttpRequest) {
   xmlHttp = new XMLHttpRequest();
  }
 }

 function startRequest() {
  var queryString;
  var domain = "<?=$ip?>";
  queryString = "q=" + domain;
  creatXMLHttpRequest();
  xmlHttp.open("POST","./?action=do","true");
  xmlHttp.onreadystatechange = handleStateChange;
  xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded;");
  xmlHttp.send(queryString);
 }

 function handleStateChange() {
  if(xmlHttp.readyState == 1) {
   document.getElementById('ipresult').style.cssText = "";
   document.getElementById('ipresult').innerHTML = '<span class="green">结果加载中，请稍等...</span>';
  }
  if(xmlHttp.readyState == 4) {
   if(xmlHttp.status == 200) {
    document.getElementById('ipresult').style.cssText = "";
    var allcon =  xmlHttp.responseText;
    document.getElementById('ipresult').innerHTML = allcon;
   }
  }
 }
 
//-->
</SCRIPT>
<? } ?>
</head>

<body>
<div align="center">
<table cellspacing="4" cellpadding="0" style="background-color:#f7f7f7;border-bottom:1px solid #dfdfdf;" width="778">
<tr>
  <td align="left"><a href="/" target="_blank">站长工具</a> &gt; <a href="./" target="_blank">同IP站点查询</a></td>
  <td align="right"><a href="javascript:;" onClick="window.external.AddFavorite(document.location.href,document.title);">收藏本页</a></td></tr></table>
<div id="result"><br />
<table width="700" cellpadding="2" cellspacing="0" style="border:1px solid #B2D0EA;">
<tr>
<th align="left"><a href="./" target="_blank">同IP站点查询</a></th>
</tr>
<tr><td align="center">
<table border="0" cellPadding="0" cellSpacing="1">
<tr><td style="font-size:14px">
<br />
<form action="" method="post" name="f1">IP地址或域名 <input name="q" id="q" type="text" size="18" delay="0" value="<? if($chaxun_status>0) echo $q; ?>" style="width:200px;height:22px;font-size:16px;font-family: Geneva, Arial, Helvetica, sans-serif;" /> <input type="submit" value=" 查询 " /></form>
</td></tr></table><br />
</td></tr>
<tr><td align="center" valign="middle" height="40" style="font-size:12px">输入域名或者IP地址，查询同一IP地址的服务器上有哪些网站。</td></tr>
</table>
<br />
<table width="700" cellpadding=2 cellspacing=0 style="border:1px solid #B2D0EA;">
<tr>
<th align="left"><?
 if($chaxun_status==1){
  echo '<a href="./">'.$title.'</a> &gt; 域名: '.$q;
 }elseif($chaxun_status==2){
  echo '<a href="./">'.$title.'</a> &gt; IP: '.$ip;
 }else{
  echo $title;
 }
?></th>
</tr>
<tr><td align="left">
<div style="padding:20px">
<p class="f14">
<?
 if(!$q){
  $ipq = '您的IP地址是：<span class="blue f14">'.$ip.'</span>';
 }elseif($chaxun_status == 0){
  $ipq = '<b class="red f14">出错啦！</b>没有找到与 <b class="blue f14">'.$q.'</b> 匹配的结果，请确定IP/域名的格式是否写对！</p><p class="f14 blue">你的IP地址是：'.$ip;
 }elseif($chaxun_status==1){
  $ipq = '你查询的域名 <span class="blue f14">'.$q.'</span></p><p class="f14">域名的IP: <span class="blue f14">'.$ip.'</span>';
 }else{
  $ipq = "你查询的IP：".$ip;
 }
 echo $ipq;
 ?></p><? if($chaxun_status>0){ ?>
 <div id="ipresult"></div><script>startRequest();</script>
<? } ?></p><hr style="border-style: dotted;" color="#cccccc" size="1" /><p align="center">相关查询： <A href="../alexa">Alexa查询</A> | <A href="../domain/">域名注册查询</A> | <A href="../whois">Whois查询</A> | <A href="../ip/">IP地址查询</A> | <A href="../pr/pr.php">PR查询</A> | <A href="../weath/">天气预报查询</A> | <A href="../robot">模仿蜘蛛</A> | <A href="/index.php">友情链接查询</A></p>
</div>
</td></tr>
</table><br />
</div>
</div>
<div id="footer">&copy; 2009 <a href="http://tool.111cn.net/">站长工具</a></div>
<div style="display:none;"></div>
</body>
</html>

同IP查询代码下载包

这是一款可以同时上传10个文件的php+ajax无刷新的上传源码了，并且还带有上传进度条的哦，好了费话不说多了喜欢就来下载吧。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无刷新文件上传系统</title>
</head>
<body>
<style>
.fu_list {
 width:600px;
 background:#ebebeb;
 font-size:12px;
}
.fu_list td {
 padding:5px;
 line-height:20px;
 background-color:#fff;
}
.fu_list table {
 width:100%;
 border:1px solid #ebebeb;
}
.fu_list thead td {
 background-color:#f4f4f4;
}
.fu_list b {
 font-size:14px;
}
/*file容器样式*/
a.files {
 width:90px;
 height:30px;
 overflow:hidden;
 display:block;
 border:1px solid #BEBEBE;
 background:url(img/fu_btn.gif) left top no-repeat;
 text-decoration:none;
}
a.files:hover {
 background-color:#FFFFEE;
 background-position:0 -30px;
}
/*file设为透明，并覆盖整个触发面*/
a.files input {
 margin-left:-350px;
 font-size:30px;
 cursor:pointer;
 filter:alpha(opacity=0);
 opacity:0;
}
/*取消点击时的虚线框*/
a.files, a.files input {
 outline:none;/*ff*/
 hide-focus:expression(this.hideFocus=true);/*ie*/
}
</style>
<form id="uploadForm" action="File.php">
  <table border="0" cellspacing="1" class="fu_list">
    <thead>
      <tr>
        <td colspan="2"><b>上传文件</b></td>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td align="right" width="15%" style="line-height:35px;">添加文件：</td>
        <td><a href="javascript:void(0);" class="files" id="idFile"></a> <img id="idProcess" style="display:none;" src="img/loading.gif" /></td>
      </tr>
      <tr>
        <td colspan="2"><table border="0" cellspacing="0">
            <thead>
              <tr>
                <td>文件路径</td>
                <td width="100"></td>
              </tr>
            </thead>
            <tbody id="idFileList">
            </tbody>
          </table></td>
      </tr>
      <tr>
        <td colspan="2" style="color:gray">温馨提示：最多可同时上传 <b id="idLimit"></b> 个文件，只允许上传 <b id="idExt"></b> 文件。 </td>
      </tr>
      <tr>
        <td colspan="2" align="center" id="idMsg"><input type="button" value="开始上传" id="idBtnupload" disabled="disabled" />
          &nbsp;&nbsp;&nbsp;
          <input type="button" value="全部取消" id="idBtndel" disabled="disabled" />
        </td>
      </tr>
    </tbody>
  </table>
</form>
<script type="text/javascript">

var isIE = (document.all) ? true : false;

var $ = function (id) {
    return "string" == typeof id ? document.getElementById(id) : id;
};

var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}

var Extend = function(destination, source) {
 for (var property in source) {
  destination[property] = source[property];
 }
}

var Bind = function(object, fun) {
 return function() {
  return fun.apply(object, arguments);
 }
}

var Each = function(list, fun){
 for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
};

//文件上传类
var FileUpload = Class.create();
FileUpload.prototype = {
  //表单对象，文件控件存放空间
  initialize: function(form, folder, options) {
 
 this.Form = $(form);//表单
 this.Folder = $(folder);//文件控件存放空间
 this.Files = [];//文件集合
 
 this.SetOptions(options);
 
 this.FileName = this.options.FileName;
 this._FrameName = this.options.FrameName;
 this.Limit = this.options.Limit;
 this.Distinct = !!this.options.Distinct;
 this.ExtIn = this.options.ExtIn;
 this.ExtOut = this.options.ExtOut;
 
 this.onIniFile = this.options.onIniFile;
 this.onEmpty = this.options.onEmpty;
 this.onNotExtIn = this.options.onNotExtIn;
 this.onExtOut = this.options.onExtOut;
 this.onLimite = this.options.onLimite;
 this.onSame = this.options.onSame;
 this.onFail = this.options.onFail;
 this.onIni = this.options.onIni;
 
 if(!this._FrameName){
  //为每个实例创建不同的iframe
  this._FrameName = "uploadFrame_" + Math.floor(Math.random() * 1000);
  //ie不能修改iframe的name
  var oFrame = isIE ? document.createElement("<iframe name="" + this._FrameName + "">") : document.createElement("iframe");
  //为ff设置name
  oFrame.name = this._FrameName;
  oFrame.style.display = "none";
  //在ie文档未加载完用appendChild会报错
  document.body.insertBefore(oFrame, document.body.childNodes[0]);
 }
 
 //设置form属性，关键是target要指向iframe
 this.Form.target = this._FrameName;
 this.Form.method = "post";
 //注意ie的form没有enctype属性，要用encoding
 this.Form.encoding = "multipart/form-data";

 //整理一次
 this.Ini();
  },
  //设置默认属性
  SetOptions: function(options) {
    this.options = {//默认值
  FileName: "Files[]",//文件上传控件的name，配合后台使用
  FrameName: "",//iframe的name，要自定义iframe的话这里设置name
  onIniFile: function(){},//整理文件时执行(其中参数是file对象)
  onEmpty: function(){},//文件空值时执行
  Limit:  10,//文件数限制，0为不限制
  onLimite: function(){},//超过文件数限制时执行
  Distinct: true,//是否不允许相同文件
  onSame:  function(){},//有相同文件时执行
  ExtIn:  ["gif","jpg","rar","zip","iso","swf","exe"],//允许后缀名
  onNotExtIn: function(){},//不是允许后缀名时执行
  ExtOut:  [],//禁止后缀名，当设置了ExtIn则ExtOut无效
  onExtOut: function(){},//是禁止后缀名时执行
  onFail:  function(){},//文件不通过检测时执行(其中参数是file对象)
  onIni:  function(){}//重置时执行
    };
    Extend(this.options, options || {});
  },
  //整理空间
  Ini: function() {
 //整理文件集合
 this.Files = [];
 //整理文件空间，把有值的file放入文件集合
 Each(this.Folder.getElementsByTagName("input"), Bind(this, function(o){
  if(o.type == "file"){ o.value && this.Files.push(o); this.onIniFile(o); }
 }))
 //插入一个新的file
 var file = document.createElement("input");
 file.name = this.FileName; file.type = "file"; file.onchange = Bind(this, function(){ this.Check(file); this.Ini(); });
 this.Folder.appendChild(file);
 //执行附加程序
 this.onIni();
  },
  //检测file对象
  Check: function(file) {
 //检测变量
 var bCheck = true;
 //空值、文件数限制、后缀名、相同文件检测
 if(!file.value){
  bCheck = false; this.onEmpty();
 } else if(this.Limit && this.Files.length >= this.Limit){
  bCheck = false; this.onLimite();
 } else if(!!this.ExtIn.length && !RegExp(".(" + this.ExtIn.join("|") + ")$", "i").test(file.value)){
  //检测是否允许后缀名
  bCheck = false; this.onNotExtIn();
 } else if(!!this.ExtOut.length && RegExp(".(" + this.ExtOut.join("|") + ")$", "i").test(file.value)) {
  //检测是否禁止后缀名
  bCheck = false; this.onExtOut();
 } else if(!!this.Distinct) {
  Each(this.Files, function(o){ if(o.value == file.value){ bCheck = false; } })
  if(!bCheck){ this.onSame(); }
 }
 //没有通过检测
 !bCheck && this.onFail(file);
  },
  //删除指定file
  Delete: function(file) {
 //移除指定file
 this.Folder.removeChild(file); this.Ini();
  },
  //删除全部file
  Clear: function() {
 //清空文件空间
 Each(this.Files, Bind(this, function(o){ this.Folder.removeChild(o); })); this.Ini();
  }
}

var fu = new FileUpload("uploadForm", "idFile", { ExtIn: ["gif","jpg"],
 onIniFile: function(file){ file.value ? file.style.display = "none" : this.Folder.removeChild(file); },
 onEmpty: function(){ alert("请选择一个文件"); },
 onLimite: function(){ alert("超过上传限制"); },
 onSame: function(){ alert("已经有相同文件"); },
 onNotExtIn: function(){ alert("只允许上传" + this.ExtIn.join("，") + "文件"); },
 onFail: function(file){ this.Folder.removeChild(file); },
 onIni: function(){
  //显示文件列表
  var arrRows = [];
  if(this.Files.length){
   var oThis = this;
   Each(this.Files, function(o){
    var a = document.createElement("a"); a.innerHTML = "取消"; a.href = "javascript:void(0);";
    a.onclick = function(){ oThis.Delete(o); return false; };
    arrRows.push([o.value, a]);
   });
  } else { arrRows.push(["<font color='gray'>没有添加文件</font>", "&nbsp;"]); }
  AddList(arrRows);
  //设置按钮
  $("idBtnupload").disabled = $("idBtndel").disabled = this.Files.length <= 0;
 }
});

$("idBtnupload").onclick = function(){
 //显示文件列表
 var arrRows = [];
 Each(fu.Files, function(o){ arrRows.push([o.value, "&nbsp;"]); });
 AddList(arrRows);
 
 fu.Folder.style.display = "none";
 $("idProcess").style.display = "";
 $("idMsg").innerHTML = "正在添加文件到您的网盘中，请稍候……<br />有可能因为网络问题，出现程序长时间无响应，请点击“<a href='?'><font color='red'>取消</font></a>”重新上传文件";
 
 fu.Form.submit();
}

//用来添加文件列表的函数
function AddList(rows){
 //根据数组来添加列表
 var FileList = $("idFileList"), oFragment = document.createDocumentFragment();
 //用文档碎片保存列表
 Each(rows, function(cells){
  var row = document.createElement("tr");
  Each(cells, function(o){
   var cell = document.createElement("td");
   if(typeof o == "string"){ cell.innerHTML = o; }else{ cell.appendChild(o); }
   row.appendChild(cell);
  });
  oFragment.appendChild(row);
 })
 //ie的table不支持innerHTML所以这样清空table
 while(FileList.hasChildNodes()){ FileList.removeChild(FileList.firstChild); }
 FileList.appendChild(oFragment);
}

$("idLimit").innerHTML = fu.Limit;

$("idExt").innerHTML = fu.ExtIn.join("，");

$("idBtndel").onclick = function(){ fu.Clear(); }

//在后台通过window.parent来访问主页面的函数
function Finish(msg){ alert(msg); location.href = location.href; }

</script>
</body>
</html>

file.php文件上传的php源码。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>
<body>
<?
$sort=12;
$f_type=strtolower("swf,jpg,rar,zip,7z,iso,gif");//设置可上传的文件类型
$file_size_max=200*1024*1024;//限制单个文件上传最大容量
$overwrite = 0;//是否允许覆盖相同文件,1:允许,0:不允许
$f_input="Files";//设置上传域名称
    foreach($_FILES[$f_input]["error"] as $key => $error){
        $up_error="no";
        if ($error == UPLOAD_ERR_OK){
            $f_name=$_FILES[$f_input]['name'][$key];//获取上传源文件名
   
            $uploadfile=$uploaddir.strtolower(basename($f_name));
            
            $tmp_type=substr(strrchr($f_name,"."),1);//获取文件扩展名
   $tmp_type=strtolower($tmp_type);
            if(!stristr($f_type,$tmp_type)){
                echo "<script>alert('对不起,不能上传".$tmp_type."格式文件, ".$f_name." 文件上传失败!')</script>";
                $up_error="yes";
            }
            
            if ($_FILES[$f_input]['size'][$key]>$file_size_max) {
   
                echo "<script>alert('对不起,你上传的文件 ".$f_name." 容量为".round($_FILES[$f_input]
['size'][$key]/1024)."Kb,大于规定的".($file_size_max/1024)."Kb,上传失败!')</script>";
                $up_error="yes";
            }
            
            if (file_exists($uploadfile)&&!$overwrite){
                echo "<script>alert('对不起,文件 ".$f_name." 已经存在,上传失败!')</script>";
                $up_error="yes";
            }
             $string = 'abcdefghijklmnopgrstuvwxyz0123456789';
$rand = '';
for ($x=0;$x<12;$x++)
  $rand .= substr($string,mt_rand(0,strlen($string)-1),1);
$t=date("ymdHis").substr($gettime[0],2,6).$rand;
$attdir="./file/"; 
    if(!is_dir($attdir))  
    {  mkdir($attdir);}
            $uploadfile=$attdir.$t.".".$tmp_type;
            if(($up_error!="yes") and (move_uploaded_file($_FILES[$f_input]['tmp_name']

[$key], $uploadfile))){

                
    $_msg=$_msg.$f_name.'上传成功n';
    
    
            }
   else{
   $_msg=$_msg.$f_name.'上传失败n';
   }
        }
 
    }
echo "<script>window.parent.Finish('".$_msg."');</script>"; 
?>
</body>
</html>

效果图