<?php
$user=$_POST['user'];
$password=$_POST['password'];
if(isset($user) && strlen($user) > 0)
{
mysql_connect("localhost", "wyzx", "songzhiyuan");
mysql_select_db("wyzx") or die ("不能连接到数据库!");
$strSql = "SELECT * FROM user where user='$user' and password='$password';";
$result=mysql_query($strSql);
$num=mysql_fetch_array($result);