Woocommerce : Change image alt text to product name

woocommerce-product-image-alt-text.php

<?php
/**
 * Change image alt text to product name
 */
add_filter('wp_get_attachment_image_attributes', 'wpmix_attachement_image_attributes', 20, 2);

function wpmix_attachement_image_attributes( $attr, $attachment ){
    // Get post parent
    $parent = get_post_field( 'post_parent', $attachment);

    // Get post type to check if it's product
    $type = get_post_field( 'post_type', $parent);
    if( $type != 'product' ){
        return $attr;
    }

    /// Get title
    $title = get_post_field( 'post_title', $parent);

    $attr['alt'] = esc_attr($title);
    $attr['title'] = esc_attr($title);

    return $attr;
}