PHP安全登录 – 密码加密

以下是要实施安全登录的登录系统/

main_login.PHP

    <form name="form1" method="post" action="checklogin.PHP">
    Username:<input name="myusername" type="text" id="myusername" /> <br />
    Password:<input name="mypassword" type="password" id="mypassword" />
    <input type="submit" name="Submit" value="Login" />
    </form>

Checklogin.PHP

<?PHP
ob_start();
$host="localhost"; // Host name 
$username="root"; // MysqL username 
$password=""; // MysqL password 
$db_name="cosmos"; // Database name 
$tbl_name="members"; // Table name

// Connect to server and select databse.
MysqL_connect("$host","$username","$password")or die("cannot connect"); 
MysqL_select_db("$db_name")or die("cannot select DB");

// Define $myusername and $mypassword 
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];

// To protect MysqL injection (more detail about MysqL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = MysqL_real_escape_string($myusername);
$mypassword = MysqL_real_escape_string($mypassword);

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=MysqL_query($sql);

// MysqL_num_row is counting table row
$count=MysqL_num_rows($result);
// If result matched $myusername and $mypassword,table row must be 1 row

if($count==1){
// Register $myusername,$mypassword and redirect to file "login_success.PHP"
session_register("myusername");
session_register("mypassword"); 
header("location:login_success.PHP");
}
else {
echo "Wrong Username or Password";
}

ob_end_flush();
?>

login_success.PHP

<?PHP
session_start();

if(isset($_SESSION['username']) && ($_SESSION['username'] == $myusername)){
header("location:main_login.PHP");
}
?>

<html>
<body>
Login Successful. <a href="logout.PHP">logout</a>
</body>
</html>

logout.PHP

<?PHP
session_destroy();

header("location:main_login.PHP");
?>

问题是我想通过密码加密或任何其他方法(如果有的话)进行安全登录.我是PHP的初学者

您可以使用md5将密码加密到一定程度.您需要在用户注册时和登录md5之前输入密码md5 ….

例：

//定义$myusername和$mypassword
$名为myUsername = $_ POST [ ‘名为myUsername’];
$输入mypassword = $_ POST [ ‘输入mypassword’];
$mypassword = md5($mypassword);

每当您有用户注册时,您还需要使用此功能.

原文链接：https://www.f2er.com/php/134583.html

PHP安全登录 – 密码加密

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