用户的详细注册和判断

有三个文件：
第一是:zcyh.php（注册用户名）<?include("header1.inc.php")?>
<div align=center>
<table width="89%" border="0">
    <tr>  
      <td><font color="#ff0000">当前位置：<a href="index.php">主页</a>&gt;&gt;注册页面</font></td>
    </tr>
  </table><br>

  <table width="82%" border="0" height="27">
    <tr>  
      <td height="14"><b><font color="#660099"><img src="images/dyb.gif" width="68" height="22">  
        请设定用户名：（<font color="#FF0000">3-15位</font>）</font></b></td>
    </tr>
  </table>
  <form name="form1" method="post" action="register.php">
    <table width="80%" border="0" height="154">
      <tr>  
        <td width="42%">  
          <div align="right"><font color="#0000FF">用户名：</font>
        </td>
        <td width="58%">  
          <input type="text" name="name" maxlength="20">
        </td></div>
      </tr>
      <tr>  
        <td colspan="2" height="27">  
          <div align="left"><font size="2"><font color="#FF0000">注意：</font><font color="#0000FF">用户名只能由英文字母（a-z），数字（0-9）和下划线（'_'、'-'、'.'  
            ）构成，不能有空格，且必须以英文字母为开头。 </font></font> </div>
        </td>
      </tr>
      <tr>  
        <td colspan="2" height="14">  
          <div align="left"><font size="2"><font color="#FF0000">例如：</font></font></div>
        </td>
      </tr>
      <tr>  
        <td colspan="2">  
          <div align="center"><font size="2" color="#FF0000"><b><font color="#0000FF">√</font></b>正确的例子：jocky、lin_xing、nh2001</font></div>
        </td>
      </tr>
      <tr>  
        <td colspan="2">  
          <div align="center"><font size="2" color="#FF0000"><b><font color="#0000FF">×</font></b>错误的例子：li  
            kitty、ming:)、168kk</font></div>
        </td>
      </tr>
      <tr>  
        <td colspan="2" height="18">  
          <div align="center"><font size="2" color="#0000FF">如果你已经填写好，请点“</font><font size="2"><font color="#FF0000">下一步</font><font color="#0000FF">”按钮；  
            点“</font><font color="#FF0000">取消</font><font color="#0000FF">”按钮即取消您刚才的输入，重新开始。</font>  
            </font></div>
        </td>
      </tr>
      <tr>  
        <td colspan="2" height="19">  
          <div align="center">  

            <input type=image name=name2 src="images/xyb.gif" width="68" height="22" border="0">
           <input type=hidden name=name3 value=<?echo$name?>>
            　<a href="zcyh.php"><img src="images/cancel.gif" width="68" height="22" border="0"></a></div>
        </td>
      </tr>
    </table>
  </form>
<br>

</div>
<br>
<?include("foot.inc.php")?>
</body>
</html>
第二个是：register.php(判断注册用户名是否正确和是否重复，然后输出注册的详细表单)
<?include("header1.inc.php")?>
<div align=center>
<table width="89%" border="0">
    <tr>  
      <td><font color="#ff0000">当前位置：<a href="index.php">主页</a>&gt;&gt;<a href=zcyh.php>注册页面</a>&gt;&gt;详细资料</font></td>
    </tr>
  </table><br>
<?
if($name==""){
    echo"<br><center><font color=blue>用户名不能为空。请</font><a href=zcyh.php>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if(strlen($name)<3 || strlen($name)>15){
    echo"<br><center><font color=blue>用户名的长度不符合要求。请</font><a href=zcyh.php>返回</a></center><br>";
  include("foot.inc.php");
    exit();
}
if (!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*$", $name)) {
       echo"<br><center><font color=blue>注册名只能由字母数字组成.请</font><a href=zcyh.php>返回</a></center><br>";
      include("foot.inc.php");
    exit();
    }
if ($name)
    {     
        $conn=@mysql_connect("localhost");
        $sql=@mysql_select_db("jocky",$conn);
        $result=@mysql_query("select * from user1 where name='$name'" ,$conn);
        if($result){
             if(@mysql_fetch_object($result)){
                 echo"<br><center><font color=blue>对不起，已经有相同的用户名！请</font><a href=zcyh.php>返回</a>.</center><br>";}
                 else{$conn=@mysql_connect("localhost");
                      $sql=@mysql_select_db("jocky",$conn);
                      $sqldo="insert into user1 (name) values ('$name')";
                     @mysql_query($sqldo,$conn);
                 echo"<br><center><font color=blue>你好，</font>";
                 echo"<font color=red><b>$name</b></font></center>";
                 include("zhuce.php");
                 @mysql_close($conn);}
                include("foot.inc.php");
                 exit();
             }
        }
    ?>
    </div>
<?include("foot.inc.php")?>
</body>
</html>
第三个是：check.php(判断注册资料是否正确，然后插入数据库，重新登录)
<?include("header1.inc.php")?>
<div align=center>  
<table width="89%" border="0">
    <tr>  
      <td><font color="#ff0000">当前位置：<a href="index.php">主页</a>&gt;&gt;<a href=zcyh.php>注册页面</a>&gt;&gt;详细资料</font></td>
    </tr>
  </table><br>
<?
if($truename==""){
    echo"<br><center><font color=blue>真实姓名不能为空。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if($password==""||$repassword==""){
    echo"<br><center><font color=blue>密码不能为空。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if($repassword!=$password){
    echo"<br><center><font color=blue>两次输入的密码不一样。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if(strlen($password)<6 || strlen($password)>15){
    echo"<br><center><font color=blue>密码的长度不符合要求。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
  include("foot.inc.php");
    exit();
}
if($pwwhat==""){
    echo"<br><center><font color=blue>密码提示问题不能为空。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if($pwan==""){
    echo"<br><center><font color=blue>密码提示答案不能为空。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if($personalid==""){
    echo"<br><center><font color=blue>身份证号码不能为空。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if(strlen($personalid)!=15 or strlen($personalid)!=18){
    echo"<br><center><font color=blue>输入的身份证号码不是15位或18位。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
  include("foot.inc.php");
    exit();
}*/
if($year=="" || $month=="" || $day==""){
    echo"<br><center><font color=blue>出生年月日没有填。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
  include("foot.inc.php");
    exit();
}
if(strlen($year)!=4 || strlen($month)!=2 || strlen($day)!=2){
    echo"<br><center><font color=blue>输入的年月日不正确。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
  include("foot.inc.php");
    exit();
}
if (!eregi("^[_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,3}$",$email)) {
echo"<br><center><font color=blue>E-Mail地址格式不对。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
    }
if($tel==""){
    echo"<br><center><font color=blue>联系的电话不能为空。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if(strlen($tel)!=11 || strlen($tel)!=12 || strlen($tel)!=13){
    echo"<br><center><font color=blue>联系的电话长度不正确。请</font><a href=javascript:history.go(-1);>返回</a></center><br>";
    include("foot.inc.php");
    exit();
}
if($gender==""){
    $null1="空";}
if($xueli==""){
    $null2="空";}
if($money==""){
    $null3="空";}
if($addr==""){
    $null4="空";}
      $birthday="$year.-.$month.-.$day";
      $time=time();
      $conn=@mysql_connect("localhost");
      $sql=@mysql_select_db("jocky",$conn);
      $result=@mysql_query("select * from user1 where name='$name'" ,$conn);
      $sqldo="insert into user1 (name,truename,password,pwwhat,pwan,personalid,gender,xueli,birth,email,tel,money,addr,time) values('$name','$truename','$password','$pwwhat','$pwan','$personalid','$null1','$null2',";
     $sqldo.="'$birthday','$email','$tel','$null3','$null4','$time')";
      $query=@mysql_query($sqldo,$conn);
      if($query){
      echo"<br><center><font color=blue>恭喜你，你已注册成功!请</font><a href=index.php>登录</a></center><br>";
        exit();
          }else{
              echo"<br><center><font color=blue>服务器忙，不能为你注册，请稍后再注册！</font><a href=index.php>回主页</a></center><br>";
          }
        @mysql_close($conn);
?>
</div>
<?include("foot.inc.php")?>
</body>
</html>