maybe_add_existing_user_to_blog

Source code

function maybe_add_existing_user_to_blog() {

	if ( false === strpos( $_SERVER[ 'REQUEST_URI' ], '/newbloguser/' ) )

		return false;



	$parts = explode( '/', $_SERVER[ 'REQUEST_URI' ] );

	$key = array_pop( $parts );



	if ( $key == '' )

		$key = array_pop( $parts );



	$details = get_option( 'new_user_' . $key );

	if ( !empty( $details ) )

		delete_option( 'new_user_' . $key );



	if ( empty( $details ) || is_wp_error( add_existing_user_to_blog( $details ) ) )

		wp_die( sprintf(__('An error occurred adding you to this site. Back to the <a href="%s">homepage</a>.'), site_url() ) );



	wp_die( sprintf(__('You have been added to this site. Please visit the <a href="%s">homepage</a> or <a href="%s">log in</a> using your username and password.'), site_url(), admin_url() ), __('Success') );

}