求助，php5.3.3+apache2.2.16+mysql5.1.49

从网上下载的注册程序是reg_cl.php 内容如下：

运行之后出现“

Deprecated:Function ereg() is deprecated in  reg_cl.php on line6

Waning Date() [function.dat]: it is not safte to rely on the system's syimezoneseting. you are *required" to use the date.tomezone setting or the ...............................

我是新新手，垦求帮助

<?php
function checkmail($nmail){   /// 验证电子邮件地址
        if(ereg("^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+",$nmail))
                return true;
        else
                return false;
}

include("config.php"); //参数页面提取过来

if(empty($_POST["yd631_name"])){
echo ("<script type='text/javascript'> alert('用户名不能是空的');history.go(-1);</script>");
exit;
}
if(empty($_POST["yd631_pws"])){
echo ("<script type='text/javascript'> alert('密码为空了吧');history.go(-1);</script>");
exit;
}
if(empty($_POST["yd631_sex"])){
echo ("<script type='text/javascript'> alert('性别呢');history.go(-1);</script>");
exit;
}
if(empty($_POST["yd631_age"])){
echo ("<script type='text/javascript'> alert('年龄不能为空');history.go(-1);</script>");
exit;
}
if(!is_numeric($_POST["yd631_age"])){
echo ("<script type='text/javascript'> alert('年龄要是数字的');history.go(-1);</script>");
exit;
}
if(empty($_POST["yd631_call"])){
echo ("<script type='text/javascript'> alert('电话不能为空');history.go(-1);</script>");
exit;
}
if(!is_numeric($_POST["yd631_call"])){
echo ("<script type='text/javascript'> alert('电话要是数字的');history.go(-1);</script>");
exit;
}
if(empty($_POST["yd631_email"])){
echo ("<script type='text/javascript'> alert('邮箱不能为空');history.go(-1);</script>");
exit;
}
if($_POST["yd631_email"]!=""){

                if(!checkmail($_POST["yd631_email"])) {
        echo ("<script type='text/javascript'> alert('不对了，邮箱格式');history.go(-1);</script>");
        exit;
                }
}

if(empty($_POST["yd631_address"])){
echo ("<script type='text/javascript'> alert('地址不能为空');history.go(-1);</script>");
exit;
}

$yd631_name=$_POST["yd631_name"];
$yd631_pws=$_POST["yd631_pws"];
$yd631_sex=$_POST["yd631_sex"];
$yd631_age=$_POST["yd631_age"];
$yd631_call=$_POST["yd631_call"];
$yd631_email=$_POST["yd631_email"];
$yd631_address=$_POST["yd631_address"];
$yd631_time=date("Y-m-d");
$yd631_pass="no";

$db=mysql_connect($servername,$sqlservername,$sqlserverpws);
mysql_select_db($sqlname,$db) ;
$sql="select * from $sqltable where yd631_name='$yd631_name'";
$result=mysql_fetch_row(mysql_query($sql));

if($result){
echo ("<script type='text/javascript'> alert('用户名在，你就不能注册这个名字');history.go(-1);</script>");

}
else{
$sql="insert into $sqltable(yd631_name,yd631_pws,yd631_sex,yd631_age,yd631_call,yd631_email,yd631_address,yd631_time,yd631_pass) values('$yd631_name','$yd631_pws','$yd631_sex','$yd631_age','$yd631_call','$yd631_email','$yd631_address','$yd631_time','$yd631_pass') ";
mysql_query($sql);

echo ("<script type='text/javascript'> alert('添加成功');location.href='index.php';</script>");
}
?>

ereg函数在新版本不可用了
将


改成

多谢管理员， 我的QQ号是10004489。

Fatal erroe : call to undefined funxtion preg_math() in d:\php\reg_cl.php on line 6     

preg_math 改成 preg_match
手误