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How can I let woocommerce set products' title as the product image's title and alt? – SEO

After doing some research I found out that image titles and alt matters a lot for SEO and changing each image title and alt will take too long.

I found this code here but it did not affect the current images.

add_filter('wp_get_attachment_image_attributes', 'change_attachement_image_attributes', 20, 2);

function change_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'] = $title;
    $attr['title'] = $title;

    return $attr;
}
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2

Answers


  1. 0

    You can try woocommerce_gallery_image_html_attachment_image_params filter for the customization. Check following example. It fetches the product title and assigns it to the alt and title attribute of the image. Note: This only works in product single page.

    add_filter( 'woocommerce_gallery_image_html_attachment_image_params','wpso_customize_single_product_image' );

function wpso_customize_single_product_image( $details ) {
    global $product;
    $details['alt'] = $details['title'] = get_the_title( $product->get_id() );
    return $details;
}
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  2. 0

    Log in to your Phpmyadmin, select your database and run this query to update images titles:

    UPDATE wp_posts as a
LEFT JOIN wp_postmeta as b ON a.ID = b.meta_value
LEFT JOIN wp_posts as c ON b.post_id = c.ID
SET a.post_title = c.post_title
WHERE a.post_type = 'attachment'
AND a.post_mime_type = 'image/jpeg'
AND b.meta_key = '_thumbnail_id'
AND c.post_type = 'product'

    … and this SQL query to update images alts:

    UPDATE wp_postmeta as z 
LEFT JOIN wp_posts as a ON z.post_id = a.ID 
LEFT JOIN wp_postmeta as b ON a.ID = b.meta_value 
LEFT JOIN wp_posts as c ON b.post_id = c.ID 
SET z.meta_value = c.post_title 
WHERE z.meta_key = '_wp_attachment_image_alt' 
AND a.post_type = 'attachment' 
AND a.post_mime_type = 'image/jpeg' 
AND b.meta_key = '_thumbnail_id' 
AND c.post_type = 'product'
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