WP_Rewrite::using_index_permalinks() WordPress Method

	public function using_index_permalinks() {
		if ( empty( $this->permalink_structure ) ) {
			return false;
		}

		// If the index is not in the permalink, we're using mod_rewrite.
		return preg_match( '#^/*' . $this->index . '#', $this->permalink_structure );
	}
Used By	Description
wp-includes/rest-api.php:get_rest_url()	Retrieves the URL to a REST endpoint on a site.
wp-includes/general-template.php:paginate_links()	Retrieves paginated links for archive post pages.
wp-includes/taxonomy.php:create_initial_taxonomies()	Creates the initial taxonomies.
wp-includes/link-template.php:get_pagenum_link()	Retrieves the link for a page number.
wp-includes/class-wp-rewrite.php:WP_Rewrite::init()	Sets up the object’s properties.
wp-includes/class-wp-rewrite.php:WP_Rewrite::using_mod_rewrite_permalinks()	Determines whether permalinks are being used and rewrite module is enabled.
wp-includes/rewrite.php:url_to_postid()	Examines a URL and try to determine the post ID it represents.
wp-includes/canonical.php:redirect_canonical()	Redirects incoming links to the proper URL based on the site url.