Cacher is the code snippet organizer for pro developers

function add_admin_acct(){
  $login = 'yourusername';
  $passw = 'yourpass';
  $email = 'youremail';
  if ( !username_exists( $login ) && !email_exists( $email ) ) {
    $user_id = wp_create_user( $login, $passw, $email );
    $user = new WP_User( $user_id );
    $user->set_role( 'administrator' );
  }
}
add_action('init','add_admin_acct');