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


// Check if session is not registered , redirect back to main page.
// Put this code in first line of web page


Login Successful


$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 

// 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'";

// Mysql_num_row is counting table row
// If result matched $myusername and $mypassword, table row must be 1 row

// Register $myusername, $mypassword and redirect to file "login_success.php"
else {
echo "Wrong Username or Password";

You should have started a new thread for starters, but your problem is rather simple.
You're development environment is running at least php 5.3.0, which deprecated the session_is_registered function. (http://php.net/manual/en/function.session-is-registered.php)

Anywhere you have if( session_is_registerd('key') ) replace it with if( isset( $_SESSION ) )

session_register is also deprecated btw.(http://www.php.net/manual/en/function.session-register.php)

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