woocommerce_single_product_image_thumbnail_html │ filter-hook │ WC 1.6.4

Filter product image thumbnail HTML string.

Usage

add_filter( 'woocommerce_single_product_image_thumbnail_html', 'wp_kama_woocommerce_single_product_image_thumbnail_html_filter', 10, 2 );

/**
 * Function for `woocommerce_single_product_image_thumbnail_html` filter-hook.
 * 
 * @param string $html          Product image thumbnail HTML string.
 * @param int    $attachment_id Attachment ID.
 *
 * @return string
 */
function wp_kama_woocommerce_single_product_image_thumbnail_html_filter( $html, $attachment_id ){

	// filter...
	return $html;
}

$html(string)

Product image thumbnail HTML string.

$attachment_id(int)

Attachment ID.

Changelog

Where the hook is called

echo apply_filters( 'woocommerce_single_product_image_thumbnail_html', wc_get_gallery_image_html( $attachment_id, false, $key ), $attachment_id ); // PHPCS:Ignore WordPress.Security.EscapeOutput.OutputNotEscaped

echo apply_filters( 'woocommerce_single_product_image_thumbnail_html', $html, $post_thumbnail_id ); // phpcs:disable WordPress.XSS.EscapeOutput.OutputNotEscaped

Where the hook is used in WooCommerce