php登录页面cookie自动登录及验证

//cookie实现自动登录

error_reporting(0);// 关闭错误报告（浏览页面出现notice可用此法消除）

$user = $_POST['username'];
$pwd = $_POST['password'];
if ($user!=''&&$pwd!=''){
if($_POST['remmber']==1){
header("Location:http://localhost/homework/login.php");
//转到登录页面
}
setcookie("username",$user,time()+600);//time()+600指600秒后cookie失效
setcookie("password",$pwd,time()+600);

}

?>

 

Login Form

" />

"/>

if(isset($_POST["username"])){//isset（）判断是否为空，不空才执行，0就是空
$username=$_POST["username"];

$password=$_POST["password"];
//$submit=$_POST["submit"];

$con = mysql_connect("localhost","root","root");
if(!$con){

die("db connection is wrong:".mysql_errno());

}


mysql_select_db("db_admin",$con);

//进行输入验证

$sql1 ="select * from register where name ='".$username."'";
$str = mysql_query($sql1);
mysql_close($con);
$buffer_account="";
$buffer_pwd="";
while($user = mysql_fetch_array($str)){
$buffer_account=$user['name'];
$buffer_pwd=$user['pwd'];
}

$value1=strcmp($username,$buffer_account);

$value2=strcmp($password,$buffer_pwd);

if($value1==0&&$value2==0){
echo "";
}
else{
echo "";
}

}

?>

$con = mysql_connect("localhost","root","root");
if(!$con){

die("db connection is wrong:".mysql_errno());

}


mysql_select_db("db_admin",$con);


//把数据库里面查询的数据保存到文件里面
$sql = "select * from register";
$result = mysql_query($sql);
$data="";
while($row = mysql_fetch_row($result)){
foreach($row as $v){
$data .=$v;

}


}
file_put_contents("abc.txt",$data);


?>

转载于:https://www.cnblogs.com/iriliguo/p/6363293.html