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   源码介绍

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php mysql用户登录注册最简单demo 附加数据库创建代码

注册

<?php
$con = mysql_connect("localhost", "root", "123456");
if(!$con){
die('Could not connect:'.mysql_error());
}
mysql_query("set names 'utf8'");
mysql_select_db("user_demo", $con);

$user_name = $_POST["user_name"];
$user_pwd = $_POST["user_pwd"];
$user_email = $_POST["user_email"];
$insert_sql = "insert into user_info(user_name, user_passwd, user_email) values('$user_name','$user_pwd','$user_email')";

mysql_query($insert_sql);
mysql_close($con);

echo "注册成功！<br/><a href='user_login.html'>点击登录</a>"

?>

登陆

<?php 
$con = mysql_connect("localhost","root","123456");
if(!$con){
	die('数据库连接错误：'.mysql_error());
}
mysql_select_db("user_demo",$con);

$user_name = $_POST["user_name"];
$user_pwd = $_POST["user_pwd"];
$select_sql = "select * from user_info where user_name = '$user_name' and '$user_pwd'";

$result = mysql_query($select_sql);
if($get_user = mysql_fetch_array($result)){
	echo "恭喜你！登录成功！<br/><a href='user_register.html'>点击注册</a>";
} else {
	echo "密码或或用户名错误！<br/><a href='user_login.html'>返回登录</a>";
}

?>