Astra theme - index.php

<?php
/**
 * The main template file.
 *
 * This is the most generic template file in a WordPress theme
 * and one of the two required files for a theme (the other being style.css).
 * It is used to display a page when nothing more specific matches a query.
 * E.g., it puts together the home page when no home.php file exists.
 *
 * @link https://codex.wordpress.org/Template_Hierarchy
 *
 * @package Astra
 * @since 1.0.0
 */

get_header(); ?>

<?php if ( astra_page_layout() == 'left-sidebar' ) : ?>

    <?php get_sidebar(); ?>

<?php endif ?>

    <div id="primary" <?php astra_primary_class(); ?>>

        <?php astra_primary_content_top(); ?>

        <?php astra_content_loop(); ?>

        <?php astra_pagination(); ?>

        <?php astra_primary_content_bottom(); ?>

    </div><!-- #primary -->

<?php if ( astra_page_layout() == 'right-sidebar' ) : ?>

    <?php get_sidebar(); ?>

<?php endif ?>

<?php get_footer(); ?>