Untitled

If else statement that redirects to another page
<?php
$con = mysql_connect("localhost","site","xxxxxxxx");
if (!$con)
   {
   die('Could not connect: ' . mysql_error());
   }

mysql_select_db("site", $con);

$query = "SELECT * FROM Members WHERE firstname='$_POST[firstname]' and surname='$_POST[surname]'";
$result = mysql_query($query);

if ($result==$something)
   {
   echo "great success"; //user continues loading page
   }
else
   {
   echo "fail"; //user is redirected to sign up page
   }
?>

<?php

$con = mysql_connect( "localhost", "site", "xxxxxxxx" );
if ( !$con ) {
    die('Could not connect: ' . mysql_error());
}

mysql_select_db("site", $con);

$firstname = strip_tags( $_POST[ 'firstname' ] );
$surname = strip_tags( $_POST[ 'surname' ] );

$query = "SELECT * FROM Members WHERE firstname='" . $firstname . "' and surname=' " . $surname. "'";
$result = mysql_query( $query );

if ( mysql_num_rows($result) >= 1 ) {
    // the page you want
} else {
    // redirect user to another page
    header( "Location: signup.php" ); die;
}

?>

if (mysql_num_rows($result) == 1)
   {
   echo "great success"; //user continues loading page
   }
else
   {
   echo "fail"; //user is redirected to sign up page
   }

$rows = mysql_num_rows($results);

if ($rows == 1)
{
   echo "login successful"; //user continues loading page
}
else
{
   header ('location: signup.php'); //user is redirected to sign up page
}

if(mysql_num_rows($result) > 0){
    echo "great success"; //user continues loading page
}
else
{
   echo "fail"; //user is redirected to sign up page
}