Create a New WordPress Admin User from PHP

<?php
// ADD NEW ADMIN USER TO WORDPRESS
// ----------------------------------
// Put this file in your Wordpress root directory and run it from your browser.
// Delete it when you're done.

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

// CONFIG
$newusername = 'YOURUSERNAME';
$newpassword = 'YOURPASSWORD';
$newemail = 'YOUREMAIL@TEST.com';

// Make sure you set CONFIG variables
if ( $newpassword != 'YOURPASSWORD' &&
  $newemail != 'YOUREMAIL@TEST.com' &&
  $newusername !='YOURUSERNAME' )
{
 // Check that user doesn't already exist
 if ( !username_exists($newusername) && !email_exists($newemail) )
 {
  // Create user and set 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 file!';
  }
  else {
   echo 'Error with wp_insert_user. No users were created.';
  }
 }
 else {
  echo 'This user or email already exists. Nothing was done.';
 }
}
else {
 echo 'Whoops, looks like you did not set a password, username, or email';
 echo 'before running the script. Set these variables and try again.';
}

?>

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