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请教，怎样限制用户名只能用英文和数字?不可用中文?

bxyl

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Rank: 1

帖子: 45
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性别: 男
注册时间: 2007-10-14

1^# 大中小发表于 2008-4-5 16:09 只看该作者

请教，怎样限制用户名只能用英文和数字?不可用中文?

源码如下:

复制内容到剪贴板

代码:

<?php
require_once(dirname(__FILE__)."/config.php");
if(empty($_POST) && empty($_GET))
{
    ShowMsg("本页面禁止返回!","control.php");
    exit();
}
if(empty($fmdo)) $fmdo = "";
if(empty($dopost)) $dopost = "";
switch($fmdo){
/*********************
function A_User()
*******************/
case "user":
/*
检查用户名是否存在
function ACheckUser();
*/
if($dopost=="checkuser")
{
     AjaxHead();
     $msg = "";
     $userid = trim($userid);
     if($userid==""||!TestStringSafe($userid)){
          $msg = "<font color='red'> 用户名含有非法字符！ </font>";
     }else{
       $dsql = new DedeSql(false);
       $dsql->SetQuery("Select ID From #@__member where userid='$userid'");
       $dsql->Execute();
       $rowcount = $dsql->GetTotalRow();
       $dsql->Close();
       if($rowcount>0){ $msg = "用户名 [<font color='red'>$userid</font>]，已经被人使用，请使用其它用户名。"; }
       else{ $msg = "用户名 [<font color='red'>$userid</font>]，可以正常使用。"; }
     }
     echo $msg;
     exit();
}
/*
新用户注册
function AUserReg()
*/
else if($dopost=="regnew")
{
     if($cfg_pp_isopen==1 && $cfg_pp_regurl!=''){
        header("Location:{$cfg_pp_regurl}");
        exit();
   }
     require_once(dirname(__FILE__)."/reg_new.php");
     exit();
}
else if($dopost=="regok")
{
     if($cfg_pp_isopen==1 && $cfg_pp_regurl!=''){
        header("Location:{$cfg_pp_regurl}");
        exit();
   }
     $svali = GetCkVdValue();
   if(strtolower($vdcode)!=$svali || $svali==""){
       ShowMsg("验证码错误！","-1");
       exit();
   }
     $userid = trim($userid);
     $pwd = trim($userpwd);
     $pwdc = trim($userpwdok);
     if(!TestStringSafe($userid)||!TestStringSafe($pwd))
     {
           ShowMsg("你的用户名或密码不合法！","-1");
           exit();
     }
     if(strlen($userid)<3||strlen($pwd)<3){
           ShowMsg("你的用户名或密码小于三位，不允许注册！","-1");
           exit();
     }
     if(strlen($userid)>24||strlen($pwd)>24){
           ShowMsg("你的用户名或密码长度不能超过24位！","-1");
           exit();
     }
     if($pwdc!=$pwd){
          ShowMsg("你两次输入的密码不一致！","-1");
          exit();
     }
     $dsql = new DedeSql(false);

     //会员的默认金币
     $dfrank = $dsql->GetOne("Select money From #@__arcrank where rank='10' ");
     if(is_array($dfrank)) $dfmoney = $dfrank['money'];
     else $dfmoney = 0;

     $dsql->SetQuery("Select ID From #@__member where userid='$userid'");
     $dsql->Execute();
     $rowcount = $dsql->GetTotalRow();
     if($rowcount>0){
          $dsql->Close();
          ShowMsg("你指定的用户名已存在，请使用别的用户名！","-1");
          exit();
   }
    $uname = eregi_replace("['\"\$ \r\n\t;<>\*%\?]", '', $uname);
   $pwd = GetEncodePwd($pwd);
     $jointime = time();
     $logintime = time();
     $joinip = GetIP();
     $loginip = GetIP();

     //设置可选注册项目的默认值
     $dfregs['birthday_y'] = '0000';
     $dfregs['birthday_m'] = '00';
     $dfregs['birthday_d'] = '00';
     $dfregs['birthday'] = '0000-00-00';
     $dfregs['weight'] = '0';
     $dfregs['height'] = '0';
     $dfregs['job'] = '';
     $dfregs['province'] = '0';
     $dfregs['city'] = '0';
     $dfregs['myinfo'] = '';
     $dfregs['tel'] = '';
     $dfregs['type'] = 0;
     $dfregs['oicq'] = '';
     $dfregs['homepage'] = '';
     $dfregs['address'] = '';
     $dfregs['spacename'] = '';
     $dfregs['showaddr'] = '0';
     foreach($dfregs as $k=>$v){
          if(!isset($$k)) $$k = $v;
     }
$membertype = 10;
if($cfg_member_regsta == 'Y'){
    $membertype = 0;
}
    if($type == 1){
        if(trim($comname) == ''){
            ShowMsg("公司用户必须填写公司名称","-1");
            exit();
        }
        $comname = htmlEncode(trim($comname));
    }else{
        $type = 0;
    }

   if(empty($spacename) && !empty($comname)) $spacename = $comname;
   if(empty($spacename)) $spacename = $uname.'的个人空间';

     $birthday = GetAlabNum($birthday_y)."-".GetAlabNum($birthday_m)."-".GetAlabNum($birthday_d);
     if($birthday=='0-0-0'){
          $birthday = '0000-00-00';
     }

     $height = GetAlabNum($height);

     $inQuery = "
      INSERT INTO `#@__member` (`userid` , `pwd` , `type` , `uname` ,`sex` , `membertype` , `uptime` , `exptime` ,
       `money` , `email` , `jointime` , `joinip` , `logintime` , `loginip` ,
        `c1` , `c2` , `c3` , `matt` , `guestbook` , `spaceshow` , `pageshow` , `spacestyle` ,
         `spacename` , `spaceimage` , `news` ,`mybb` , `listnum` , `scores` )
    VALUES ('$userid', '$pwd', '$type', '$uname','$sex', '$membertype', '0', '0',
     '0', '$email', '$jointime', '$joinip', '$jointime', '$joinip',
      '0', '0', '0', '0', '0', '0', '0', '',
       '$spacename', '', '', '', '20', '{$cfg_df_score}')
     ";

    if($dsql->ExecuteNoneQuery($inQuery))
    {
        $id = $dsql->GetLastID();
        if($type == 1)
        {
            $inQuery = "INSERT INTO #@__member_cominfo(id, comname) VALUES ('$id', '$comname');";
            $dsql->ExecuteNoneQuery($inQuery);
        }
        else
        {
            $inQuery = "
         INSERT INTO `#@__member_perinfo` (`id`, `uname` , `sex` , `birthday` , `weight` ,`height` , `job` , `province` , `city` , `myinfo` ,
         `tel` , `oicq` , `homepage` , `showaddr` ,`address` , `fullinfo`)
      VALUES ('$id','$uname', '$sex', '$birthday', '$weight','$height', '$job', '$province', '$city', '$myinfo' ,
        '$tel' , '$oicq' , '$homepage' ,'$showaddr','$address','');";
      $dsql->ExecuteNoneQuery($inQuery);
        }
        $dsql->Close();
        $ml = new MemberLogin();
        $rs = $ml->CheckUser($userid,$pwd);
        if($rs==1)
        {
            if($type == 1){
                ShowMsg("注册成功，请您立即填写企业相关资料","mycominfo.php",0,2000);
                exit();
            }
            ShowMsg("注册成功，5秒钟后转向空间管理中心","control.php",0,2000);
            exit();
        }else
        {
            ShowMsg("注册成功，5秒钟后转向登录页面...","login.php",0,2000);
            exit();
        }
    }else
    {
        echo $dsql->GetError();
        $dsql->Close();
        ShowMsg("注册失败，请检查资料是否有误或与管理员联系！","javascript:;");
        exit();
    }
}
  /*
更改用户资料
function AEditUser()
*/
else if($dopost=="editUserSafe")
{
      if($cfg_pp_isopen==1 && $cfg_pp_editsafeurl!=''){
        header("Location:{$cfg_pp_editsafeurl}");
        exit();
    }
      CheckRank(0,0);
      $svali = GetCkVdValue();
    if(strtolower($vdcode)!=$svali || $svali==""){
        ShowMsg("验证码错误！","-1");
        exit();
    }
      if($oldpwd==""){
          ShowMsg("你没有填写你的旧密码！","-1");
          exit();
      }
      $pwd = trim($userpwd);
      $pwdc = trim($userpwdok);
      if($pwd!=""){
          if(strlen($pwd)>24){
                ShowMsg("密码长度不能超过24位！","-1");
                exit();
          }
          if(!TestStringSafe($pwd)){
               ShowMsg("你的新密码含有非法字符！","-1");
               exit();
          }
          if($pwdc!=$pwd){
               ShowMsg("你两次输入的密码不一致！","-1");
               exit();
          }
      }else{
          ShowMsg("你没有设置要更改的密码！","-1");
           exit();
      }
      $dsql = new DedeSql(false);
      $row = $dsql->GetOne("Select pwd From #@__member where ID='".$cfg_ml->M_ID."'");
      $oldpwd = GetEncodePwd($oldpwd);
      if(!is_array($row)||$row['pwd']!=$oldpwd){
         $dsql->Close();
         ShowMsg("你输入的旧密码错误！","-1");
            exit();
      }
      $pwd = GetEncodePwd($pwd);
      $query = "update #@__member set pwd = '$pwd' where ID='".$cfg_ml->M_ID."'";
      $dsql->ExecuteNoneQuery($query);
      ShowMsg("成功更改你的密码！","-1");
         exit();
}
else if($dopost=="editUser")
{
      CheckRank(0,0);
      $svali = GetCkVdValue();
    if(strtolower($vdcode)!=$svali || $svali==""){
        ShowMsg("验证码错误！","-1");
        exit();
    }
      $query1 = "
      update #@__member set
      email = '$email',uname = '$uname'
      where ID='".$cfg_ml->M_ID."'
      ";
      $query2 = "
      update #@__member_perinfo set
    uname = '$uname',
    sex = '$sex',
    birthday = '$birthday',
    weight = '$weight',
    height = '$height',
    job = '$job',
    province = '$province',
    city = '$city',
    myinfo = '$myinfo',
    fullinfo = '$fullinfo',
    showaddr = '$showaddr',
    address = '$address',
    oicq = '$oicq',
    tel = '$tel',
    homepage = '$homepage'
      where ID='".$cfg_ml->M_ID."'
      ";
      $dsql = new DedeSql(false);
      $dsql->ExecuteNoneQuery($query1);
      $dsql->ExecuteNoneQuery($query2);
      $dsql->Close();
      ShowMsg("成功更新你的个人资料！","edit_info.php");
         exit();
}
  /*
更改个人空间资料
function EditSpace()
*/
else if($dopost=="editSpace")
{
      CheckRank(0,0);
      $svali = GetCkVdValue();
    if(strtolower($vdcode)!=$svali || $svali==""){
        ShowMsg("验证码错误！","-1");
        exit();
    }
    require_once("./inc/inc_archives_functions.php");
    $title = "空间形象";
    $spaceimage = GetUpImage('spaceimage',true,true,150,112,'myface');
    if($spaceimage=="" && $oldimg!="" && $oldimg!="img/pview.gif"){
         if(file_exists($cfg_basedir.$oldimg)){
               $spaceimage = $oldimg;
         }
    }
      $dsql = new DedeSql(false);
      $news = addslashes(cn_substr(stripslashes($news),1024));
      $news = eregi_replace("<(iframe|script|javascript)","",$news);
      $spacename = ereg_replace("[><]","",$spacename);
      $mybb = addslashes(html2text(stripslashes($mybb)));
      $upquery = "Update #@__member set
          spacename='$spacename',spaceimage='$spaceimage',news='$news',mybb='$mybb'
          where ID='".$cfg_ml->M_ID."';
      ";
      $ok = $dsql->ExecuteNoneQuery($upquery);
      if($ok){
          $dsql->Close();
          ShowMsg("成功更新你的个人空间介绍！","space_info.php?".time().mt_rand(100,900));
          exit();
      }else{
          $dsql->Close();
        ShowMsg("更新资料失败！","space_info.php?".time().mt_rand(100,900));
           exit();
      }
}
//
break;
/*********************
function B_Login()
*******************/
case "login":
//
/*
用户登录
function BUserLogin()
*/
if($dopost=="login")
{
     if($cfg_pp_isopen==1 && $cfg_pp_loginurl!=''){
        header("Location:{$cfg_pp_loginurl}");
        exit();
   }
     $svali = GetCkVdValue();
   if(strtolower($vdcode)!=$svali || $svali==""){
       ShowMsg("验证码错误！","-1");
       exit();
   }
   if(!TestStringSafe($userid)||!TestStringSafe($pwd))
   {
        ShowMsg("用户名或密码不合法！","-1",0,2000);
       exit();
   }
   if($userid==""||$pwd==""){
        ShowMsg("用户名或密码不能为空！","-1",0,2000);
       exit();
   }
   //检查帐号
   $rs = $cfg_ml->CheckUser($userid,GetEncodePwd($pwd));
   if($rs==0) {
        ShowMsg("用户名不存在！","-1",0,2000);
       exit();
   }
   else if($rs==-1){
        ShowMsg("密码错误！","-1",0,2000);
       exit();
   }
   else{
        $dsql->SetQuery("update #@__member set logintime='".time()."',loginip='".GetIP()."' where ID='".$cfg_ml->M_ID."'");
        $dsql->ExecuteNoneQuery();
        $dsql->Close();
        if(empty($gourl)||eregi("action|_do",$gourl)){
              ShowMsg("成功登录，5秒钟后转向系统管理中心...","control.php",0,2000);
        }else{
              ShowMsg("成功登录，转到进入页面...",$gourl,0,2000);
        }
       exit();
   }
}
/*
退出登录
function BUserExit()
*/
else if($dopost=="exit")
{
     $cfg_ml->ExitCookie();
     if($cfg_pp_isopen==1 && $cfg_pp_exiturl!=''){
        echo "<script> location='{$cfg_pp_exiturl}'; </script>";
        exit();
   }
     $cfg_ml->ExitCookie();
     if(empty($cfg_mb_exiturl)) $cfg_mb_exiturl = $cfg_indexurl;
     if(empty($cfg_mb_exiturl)) $cfg_mb_exiturl = '/';
     ShowMsg("成功退出登录！",$cfg_mb_exiturl,0,2000);
   exit();
}
/*
获取密码
function BUserGetPwd()
*/
else if($dopost=="getpwd")
{
     if($cfg_pwdtype=='md5'){
          ShowMsg("系统的密码被设置为单向加密，无法取回，请与管理员联系。","javascript:;");
          exit();
     }
     $svali = GetCkVdValue();
   if(strtolower($vdcode)!=$svali || $svali==""){
       ShowMsg("验证码错误！","-1");
       exit();
   }
   if(!ereg("(.*)@(.*)\.(.*)",$email)||!TestStringSafe($email)){
        ShowMsg("邮箱地址格式不正确！","-1");
       exit();
   }
   $dsql = new DedeSql(false);
   $row = $dsql->GetOne("Select userid,pwd,uname,email From #@__member where email='$email'");
   if(!is_array($row)){
     $dsql->Close();
     ShowMsg("系统找不到此邮箱地址！","-1");
       exit();
   }
   $dsql->Close();
     $mailtitle = "你在".$cfg_webname."的用户名和密码";
     $mailbody = "\r\n用户名：'".$row['userid']."'  密码：'".$row['pwd']."'\r\n\r\n，
     $cfg_powerby";
     $headers = "From: ".$cfg_adminemail."\r\nReply-To: $cfg_adminemail";
   sendmail($email, $mailtitle, $mailbody, $headers);
   $gurl = explode("@",$email);
   ShowMsg("成功发出你的用户名和密码，请注意查收！","login.php");
   exit();
}
//
break;
}

?>