How can I use hooks and shortcodes to display reviews by category

Create a Custom Shortcode

First, create a custom shortcode in your theme's functions.php file that displays reviews for products in a specific category. Here's an example:

php
add_shortcode( 'category_reviews', 'bbloomer_category_reviews_shortcode' );

function bbloomer_category_reviews_shortcode( $atts ) {
    $atts = shortcode_atts( array(
        'category' => '',
    ), $atts );

    if ( empty( $atts['category'] ) ) return '';

    $category_id = get_term_by( 'slug', $atts['category'], 'product_cat' )->term_id;
    $product_ids = get_objects_in_term( $category_id, 'product_cat' );

    $html = '';
    foreach ( $product_ids as $product_id ) {
        $comments = get_comments( 'post_id=' . $product_id );
        if ( ! $comments ) continue;

        $html .= '<div class="woocommerce-tabs"><div id="reviews"><ol class="commentlist">';
        foreach ( $comments as $comment ) {
            $rating = intval( get_comment_meta( $comment->comment_ID, 'rating', true ) );
            $html .= '<li class="review">' . get_avatar( $comment, '60' );
            $html .= '<div class="comment-text">';
            if ( $rating ) $html .= wc_get_rating_html( $rating );
            $html .= '<p class="meta"><strong class="woocommerce-review__author">' . get_comment_author( $comment) . '</strong></p>';
            $html .= '<div class="description">' . $comment->comment_content . '</div></div></li>';
        }
        $html .= '</ol></div></div>';
    }
    return $html;
}

This shortcode takes a `category` parameter, which is the slug of the product category you want to display reviews for. For example, `[category_reviews category="clothing"]` will display reviews for all products in the "clothing" category.

Display the Shortcode

Now, you can use the shortcode on any page or post where you want to display category-specific reviews. For example, you could create a dedicated "Reviews" page and use the shortcode there:

[category_reviews category="clothing"]
[category_reviews category="electronics"]

This will display reviews for products in the "clothing" and "electronics" categories on the same page.

Customize the Display

You can further customize the display of reviews by modifying the HTML output in the `bbloomer_category_reviews_shortcode` function. For example, you could add a heading, change the layout, or add additional information.

Summary

By creating a custom shortcode that retrieves reviews for products in a specific category, you can display category-based reviews on any page of your WooCommerce site. This allows you to showcase relevant reviews for different product categories and enhance the user experience.