bp_blogs_total_blogs_for_user( int $user_id )

function bp_blogs_total_blogs_for_user( $user_id = 0 ) {
	if ( empty( $user_id ) ) {
		$user_id = ( bp_displayed_user_id() ) ? bp_displayed_user_id() : bp_loggedin_user_id();
	}

	// No user ID? do not attempt to look at cache.
	if ( empty( $user_id ) ) {
		return 0;
	}

	$count = wp_cache_get( 'bp_total_blogs_for_user_' . $user_id, 'bp' );
	if ( false === $count ) {
		$count = BP_Blogs_Blog::total_blog_count_for_user( $user_id );
		wp_cache_set( 'bp_total_blogs_for_user_' . $user_id, $count, 'bp' );
	}

	return $count;
}