The `$mod` variable is defined early in the load process (in `WpssoHead->show_head()`, which is hooked to the 'wp_head' action) and is passed to most WPSSO methods and filters.

    $wpsso =& Wpsso::get_instance();

    // In case we prefer using the global $post object.
    $use_post = apply_filters( 'wpsso_use_post', in_the_loop() ? true : false );

    // Get information about the current webpage.
    $mod = $wpsso->page->get_mod( $use_post );

The `$mod` variable name stands for module and defines important reference values for the current WPSSO object type. The WPSSO object type can be a comment, post, term, or user object. An archive does not have an object type since an archive page is a collection of objects. For example, a monthly archive is a collection of posts for that month. In this case, `$mod[ 'obj' ]` would be false and other properties like `$mod[ 'is_archive' ]`, `$mod[ 'is_date' ]`, and `$mod[ 'is_month' ]` would be true.

The `WpssoPage->get_mod()` method can be used to determine the current webpage module. If you need to setup a `$mod` variable for a specific comment, post, term, or user, you can call the `get_mod()` method from those class objects.

    $wpsso =& Wpsso::get_instance();

    // Get information for comment ID 123.
    $mod = $wpsso->comment->get_mod( $comment_id = 123 );

    // Get information for post ID 123.
    $mod = $wpsso->post->get_mod( $post_id = 123 );

    // Get information for term ID 123.
    $mod = $wpsso->term->get_mod( $term_id = 123 );

    // Get information for user ID 123.
    $mod = $wpsso->user->get_mod( $user_id = 123 );

Functions to get the `$mod` array are also available:

    // Get information about the current webpage (post, term, user, archive page, etc.).
    $mod = wpsso_get_page_mod();

    // Get information for comment ID 123.
    $mod = wpsso_get_comment_mod( $comment_id = 123 );

    // Get information for post ID 123.
    $mod = wpsso_get_post_mod( $post_id = 123 );

    // Get information for term ID 123.
    $mod = wpsso_get_term_mod( $term_id = 123 );

    // Get information for user ID 123.
    $mod = wpsso_get_user_mod( $user_id = 123 );

Here is an example `$mod` array for a post:

    Array (
        [id] => 123
        [name] => post
        [name_transl] => post
        [obj] => object WpssoPost
        [wp_obj] => object WP_Post
        [query_vars] => Array ()
        [posts_args] => Array ()
        [paged] => false
        [paged_total] => 1
        [is_404] => false
        [is_archive] => false
        [is_attachment] => false
        [is_comment] => false
        [is_date] => false
        [is_day] => false
        [is_home] => false
        [is_home_page] => false
        [is_home_posts] => false
        [is_month] => false
        [is_post] => true
        [is_post_type_archive] => false
        [is_public] => false
        [is_search] => false
        [is_term] => false
        [is_user] => false
        [is_year] => false
        [comment_author] => false
        [comment_author_name] => false
        [comment_author_url] => false
        [comment_paged] => false
        [comment_parent] => false
        [comment_rating] => false
        [comment_time] => false
        [use_post] => false
        [post_slug] => the-post-slug
        [post_type] => post
        [post_type_label_plural] => Posts
        [post_type_label_single] => Post
        [post_mime_type] => ''
        [post_mime_group] => ''
        [post_mime_subgroup] => ''
        [post_status] => publish
        [post_author] => 123
        [post_coauthors] => Array ()
        [post_time] => 2013-03-15T22:23:27+00:00
        [post_timestamp] => 1363386207
        [post_modified_time] => 2021-01-31T00:16:46+00:00
        [post_modified_timestamp] => 1612052206
        [post_parent] => false
        [tax_slug] => ''
        [tax_label_plural] => false
        [tax_label_single] => false
        [user_name] => ''
        [wpml_code] => ''
    )

Here is an example `$mod` array for a WooCommerce product:

    Array (
        [id] => 4567
        [name] => post
        [name_transl] => post
        [obj] => object WpssoPost
        [wp_obj] => object WP_Post
        [query_vars] => Array ()
        [posts_args] => Array ()
        [paged] => false
        [paged_total] => 1
        [is_404] => false
        [is_archive] => false
        [is_attachment] => false
        [is_comment] => false
        [is_date] => false
        [is_day] => false
        [is_feed] => false
        [is_home] => false
        [is_home_page] => false
        [is_home_posts] => false
        [is_month] => false
        [is_post] => true
        [is_post_type_archive] => false
        [is_public] => true
        [is_search] => false
        [is_term] => false
        [is_user] => false
        [is_year] => false
        [comment_author] => false
        [comment_author_name] => false
        [comment_author_url] => false
        [comment_paged] => false
        [comment_parent] => false
        [comment_rating] => false
        [comment_time] => false
        [use_post] => false
        [post_slug] => hoodie
        [post_type] => product
        [post_type_label_plural] => Products
        [post_type_label_single] => Product
        [post_mime_type] => ''
        [post_mime_group] => false
        [post_mime_subgroup] => false
        [post_status] => publish
        [post_author] => 123
        [post_coauthors] => Array ()
        [post_time] => 2023-02-16T12:34:11+00:00
        [post_timestamp] => 1676550851
        [post_modified_time] => 2023-07-04T00:54:41+00:00
        [post_modified_timestamp] => 1688432081
        [post_parent] => false
        [term_tax_id] => false
        [tax_slug] => ''
        [tax_label_plural] => false
        [tax_label_single] => false
        [user_name] => ''
        [wpml_code] => ''
    )

Here is an example `$mod` array for a WooCommerce product category term:

    Array (
        [id] => 890
        [name] => term
        [name_transl] => term
        [obj] => object WpssoTerm
        [wp_obj] => object WP_Term
        [query_vars] => Array ()
        [posts_args] => Array ()
        [paged] => false
        [paged_total] => false
        [is_404] => false
        [is_archive] => true
        [is_attachment] => false
        [is_comment] => false
        [is_date] => false
        [is_day] => false
        [is_feed] => false
        [is_home] => false
        [is_home_page] => false
        [is_home_posts] => false
        [is_month] => false
        [is_post] => false
        [is_post_type_archive] => false
        [is_public] => true
        [is_search] => false
        [is_term] => true
        [is_user] => false
        [is_year] => false
        [comment_author] => false
        [comment_author_name] => false
        [comment_author_url] => false
        [comment_paged] => false
        [comment_parent] => false
        [comment_rating] => false
        [comment_time] => false
        [use_post] => false
        [post_slug] => false
        [post_type] => false
        [post_type_label_plural] => false
        [post_type_label_single] => false
        [post_mime_type] => false
        [post_mime_group] => false
        [post_mime_subgroup] => false
        [post_status] => false
        [post_author] => false
        [post_coauthors] => Array ()
        [post_time] => false
        [post_timestamp] => false
        [post_modified_time] => false
        [post_modified_timestamp] => false
        [post_parent] => false
        [term_tax_id] => 761
        [tax_slug] => product_cat
        [tax_label_plural] => Product categories
        [tax_label_single] => Category
        [user_name] => ''
        [wpml_code] => ''
    )