if ( ! function_exists( 'wp_new_blog_notification' ) ) :
	/**
	 * Notifies the site admin that the setup is complete.
	 *
	 * Sends an email with wp_mail to the new administrator that the site setup is complete,
	 * and provides them with a record of their login credentials.
	 *
	 * @since 2.1.0
	 *
	 * @param string $blog_title Site title.
	 * @param string $blog_url   Site url.
	 * @param int    $user_id    User ID.
	 * @param string $password   User's Password.
	 */
	function wp_new_blog_notification( $blog_title, $blog_url, $user_id, $password ) {
		$user      = new WP_User( $user_id );
		$email     = $user->user_email;
		$name      = $user->user_login;
		$login_url = wp_login_url();
		/* translators: New site notification email. 1: New site URL, 2: User login, 3: User password or password reset link, 4: Login URL */
		$message = sprintf(
			__(
				'Your new WordPress site has been successfully set up at:

%1$s

You can log in to the administrator account with the following information:

Username: %2$s
Password: %3$s
Log in here: %4$s

We hope you enjoy your new site. Thanks!

--The WordPress Team
https://wordpress.org/
'
			),
			$blog_url,
			$name,
			$password,
			$login_url
		);

		@wp_mail( $email, __( 'New WordPress Site' ), $message );
	}
endif;

if ( ! function_exists( 'wp_upgrade' ) ) :