我正在尝试使用高级Woo搜索插件将我的帖子元数据连接到我的搜索结果标题。文档提供了以下过滤器，但我不确定输入什么作为参数：

这是我迄今为止访问post元数据并将其存储在变量中的代码。我所需要的帮助就是将其与上述过滤器挂钩，以使我的搜索结果标题不同。

// Display Fields
add_action(\'woocommerce_product_options_general_product_data\', \'woocommerce_product_custom_fields\');
// Save Fields
add_action(\'woocommerce_process_product_meta\', \'woocommerce_product_custom_fields_save\');

function woocommerce_product_custom_fields() {
    global $woocommerce, $post;
    echo \'<div class="product_custom_field">\';
    // Custom Product Text Field 1
    woocommerce_wp_text_input(
        array(
            \'id\' => \'_tyre_size_field\',
            \'placeholder\' => \'Tyre Size\',
            \'label\' => __(\'Tyre Size\', \'woocommerce\'),
            \'desc_tip\' => \'true\'
        )
    );
    // Custom Product Text Field 2
    woocommerce_wp_text_input(
        array(
            \'id\' => \'_load_speed_field\',
            \'placeholder\' => \'Load Index & Speed Rating\',
            \'label\' => __(\'Load Index & Speed Rating\', \'woocommerce\'),
            \'desc_tip\' => \'true\'
        )
    );
    // Custom Product Text Field 3
    woocommerce_wp_text_input(
        array(
            \'id\' => \'_tyre_brand_field\',
            \'placeholder\' => \'Tyre Brand\',
            \'label\' => __(\'Tyre Brand\', \'woocommerce\'),
            \'desc_tip\' => \'true\'
        )
    );
    // Custom Product Text Field 4
    woocommerce_wp_text_input(
        array(
            \'id\' => \'_brand_model_field\',
            \'placeholder\' => \'Brand Model\',
            \'label\' => __(\'Brand Model\', \'woocommerce\'),
            \'desc_tip\' => \'true\'
        )
    );
    // Custom Product Text Field 5
    woocommerce_wp_select( array(
        \'id\'          => \'_run_flat_field\',
        \'label\'       => __( \'Run Flat or Non-Run Flat\', \'woocommerce\' ),
        \'description\' => __( \'Choose whether the tyre is run-flat or non-run flat.\', \'woocommerce\' ),
        \'desc_tip\'    => true,
        \'options\'     => array(
            \' \'        => __( \' \', \'woocommerce\' ),
            \'RUN FLAT\'    => __(\'RUN FLAT\', \'woocommerce\' ),
            \'NON-RUN FLAT\' => __(\'NON-RUN FLAT\', \'woocommerce\' ),
        )
    ) );
    echo \'</div>\';
}

function woocommerce_product_custom_fields_save($post_id) {
    // Custom Product Text Field 1
    $woocommerce_custom_product_tyre_size_field = $_POST[\'_tyre_size_field\'];
    if (!empty($woocommerce_custom_product_tyre_size_field))
        update_post_meta($post_id, \'_tyre_size_field\', esc_attr($woocommerce_custom_product_tyre_size_field));
    // Custom Product Text Field 2
    $woocommerce_custom_product_tyre_brand_field = $_POST[\'_tyre_brand_field\'];
    if (!empty($woocommerce_custom_product_tyre_brand_field))
        update_post_meta($post_id, \'_tyre_brand_field\', esc_attr($woocommerce_custom_product_tyre_brand_field));
    // Custom Product Text Field 3
    $woocommerce_custom_product_brand_model_field = $_POST[\'_brand_model_field\'];
    if (!empty($woocommerce_custom_product_brand_model_field))
        update_post_meta($post_id, \'_brand_model_field\', esc_attr($woocommerce_custom_product_brand_model_field));
    // Custom Product Text Field 4
    $woocommerce_custom_product_run_flat_field = $_POST[\'_run_flat_field\'];
    if (!empty($woocommerce_custom_product_run_flat_field))
        update_post_meta($post_id, \'_run_flat_field\', esc_attr($woocommerce_custom_product_run_flat_field));
    // Custom Product Text Field 5
    $woocommerce_custom_product_load_speed_field = $_POST[\'_load_speed_field\'];
    if (!empty($woocommerce_custom_product_load_speed_field))
        update_post_meta($post_id, \'_load_speed_field\', esc_attr($woocommerce_custom_product_load_speed_field));
}

function concatenate_fields_to_title( $title ) {
    global $post;
    $text1 = get_post_meta( $post->ID, \'_tyre_size_field\', true );
    $text2 = get_post_meta( $post->ID, \'_load_speed_field\', true );
    $text3 = get_post_meta( $post->ID, \'_tyre_brand_field\', true );
    $text4 = get_post_meta( $post->ID, \'_brand_model_field\', true );
    $text5 = get_post_meta( $post->ID, \'_run_flat_field\', true );
    if (stripos( $title, \'TYRE\' ) == true ) {
    return $text1 . " ". $text2 . " " . $text3 . " " . $text4 . " " . $text5 . " " . $title;
    }
    return $title;
}

add_filter( \'the_title\', \'concatenate_fields_to_title\' );

add_filter( \'aws_title_search_result\', \'my_aws_title_search_result\', 10, 3 );

function my_aws_title_search_result( $title, $post_id, $product ) {

    $text1 = get_post_meta( $post_id, \'_tyre_size_field\', true );
    $text2 = get_post_meta( $post_id, \'_load_speed_field\', true );
    $text3 = get_post_meta( $post_id, \'_tyre_brand_field\', true );
    $text4 = get_post_meta( $post_id, \'_brand_model_field\', true );
    $text5 = get_post_meta( $post_id, \'_run_flat_field\', true );

    if (stripos( $title, \'TYRE\' ) == true ) {
        $title = $text1 . " ". $text2 . " " . $text3 . " " . $text4 . " " . $text5 . " " . $title;
    }

    return $title;

}