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I'm trying to create a simple login page by following a tutorial i saw online. I did everything it required but i got this error

Deprecated: Function session_is_registered() is deprecated in C:\xampp\htdocs\final\login_success.php on line 7
Login Successful

my code is

login_success.php

<? 
// Check if session is not registered , redirect back to main page.
// Put this code in first line of web page
session_start();

if(!session_is_registered("myusername")){
header("location:main_login.php");
}
?>

<html>
<body>
Login Successful
</body>
</html>

checklogin.php

<?php
$host="localhost"; // Host name 
$username="root"; // Mysql username 
$password=""; // Mysql password 
$db_name="test"; // 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");

// username and password sent from form 
$myusername=$_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";
}
?>

Edited by Ezzaral: Added code tags. Please use them to format any code that you post.

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Last Post by mschroeder
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