Product Panel Limit & Columns

<div id="products-new-arrivals">
    <h3>New Arrivals</h3>
    <?php
        $new_arrival_limit = get_theme_mod("set_new_arrival_limit");
        $new_arrival_columns = get_theme_mod("set_new_arrival_column");
    ?>
    <?php// echo do_shortcode('[products limit="'.$new_arrival_limit.'" columns="'.$new_arrival_columns.'" orderby="date" class="new-arrival-custom-class"]'); ?>
</div>

<div id="products-popularity">
    <h3>Popularity</h3>
    <?php
        $popularity_limit = get_theme_mod("set_popular_limit");
        $popularity_columns = get_theme_mod("set_popular_columns");
    ?>
    <?php echo do_shortcode('[products limit="'.$popularity_limit.'" columns="'.$popularity_columns.'" orderby="popularity"]'); ?>
</div>


function product_bootstrap_theme_load_wp_customizer($wp_customize)
{
    /// customizer code

    // adding section
    $wp_customize->add_section("sec_copyright", array(
        "title" => "Copyright Section",
        "description" => "This is a copyright section",
    ));

    // adding settings/field
    $wp_customize->add_setting("set_copyright", array(
        "type" => "theme_mod",
        "default" => "",
        "sanitize_callback" => "sanitize_text_field",
    ));

    // add control
    $wp_customize->add_control("set_copyright", array(
        "label" => "Copyright",
        "description" => "Please fill the copyright text",
        "section" => "sec_copyright",
        "type" => "text",
    ));

    /* section of new arrival / popularity control limit and columns */

    // adding section
    $wp_customize->add_section("sec_product_panel", array(
        "title" => "Product Panel Limit & Columns",
        "description" => "This is a section which is going to provide the controls for home page product panels",
    ));

        // adding settings/field
        $wp_customize->add_setting("set_new_arrival_limit", array(
            "type" => "theme_mod",
            "default" => "",
            "sanitize_callback" => "absint",
        ));

        // add control
        $wp_customize->add_control("set_new_arrival_limit", array(
            "label" => "New Arrival - Product Limit",
            "description" => "Please fill provide the limit of new arrival",
            "section" => "sec_product_panel",
            "type" => "number",
        ));

        // adding settings/field
        $wp_customize->add_setting("set_new_arrival_column", array(
            "type" => "theme_mod",
            "default" => "",
            "sanitize_callback" => "absint",
        ));

        // add control
        $wp_customize->add_control("set_new_arrival_column", array(
            "label" => "New Arrival - Product Columns",
            "description" => "Please fill provide the columns of new arrival",
            "section" => "sec_product_panel",
            "type" => "number",
        ));


        // adding settings/field
        $wp_customize->add_setting("set_popular_limit", array(
            "type" => "theme_mod",
            "default" => "",
            "sanitize_callback" => "absint",
        ));

        // add control
        $wp_customize->add_control("set_popular_limit", array(
            "label" => "Popularity - Product Limit",
            "description" => "Please fill provide the limit of popularity",
            "section" => "sec_product_panel",
            "type" => "number",
        ));

        // adding settings/field
        $wp_customize->add_setting("set_popular_columns", array(
            "type" => "theme_mod",
            "default" => "",
            "sanitize_callback" => "absint",
        ));

        // add control
        $wp_customize->add_control("set_popular_columns", array(
            "label" => "Popularity - Product Columns",
            "description" => "Please fill provide the columns of popularity",
            "section" => "sec_product_panel",
            "type" => "number",
        ));
}

add_action("customize_register", "product_bootstrap_theme_load_wp_customizer");