Thank you Ben for your advice,
I found the magic wordpress function to return the ID of the home page: get_option(‘page_on_front’) :). Thank you again for your help and for all other wordpress beginners, who want to implement breadcrumbs in a theme without using a plugin, then put this in functions.php:
// breadcrumbs (Ben Sibley, https://www.competethemes.com)
if ( ! function_exists( 'ct_ignite_breadcrumbs' ) ) {
function ct_ignite_breadcrumbs( $args = array() ) {
if ( is_front_page() ) {
return;
}
if ( get_theme_mod( 'ct_ignite_show_breadcrumbs_setting' ) == 'no' ) {
return;
}
global $post;
$defaults = array(
'separator_icon' => '>',
'breadcrumbs_id' => 'breadcrumbs',
'breadcrumbs_classes' => 'breadcrumb-trail breadcrumbs',
'home_title' => 'Home'
);
$args = apply_filters( 'ct_ignite_breadcrumbs_args', wp_parse_args( $args, $defaults ) );
$separator = '<span class="separator"> ' . esc_attr( $args['separator_icon'] ) . ' </span>';
/***** Begin Markup *****/
// Open the breadcrumbs
$html = '<div id="' . esc_attr( $args['breadcrumbs_id'] ) . '" class="' . esc_attr( $args['breadcrumbs_classes'] ) . '">';
// Add Homepage link & separator (always present)
$html .= '<span class="item-home"><a class="bread-link bread-home" href="' . get_home_url() . '" title="' . esc_attr( $args['home_title'] ) . '">' . esc_attr( $args['home_title'] ) . '</a></span>';
$html .= $separator;
// Post
if ( is_singular( 'post' ) ) {
$category = get_the_category();
$category_values = array_values( $category );
$last_category = end( $category_values );
$cat_parents = rtrim( get_category_parents( $last_category->term_id, true, ',' ), ',' );
$cat_parents = explode( ',', $cat_parents );
foreach ( $cat_parents as $parent ) {
$html .= '<span class="item-cat">' . wp_kses( $parent, wp_kses_allowed_html( 'a' ) ) . '</span>';
$html .= $separator;
}
$html .= '<span class="item-current item-' . $post->ID . '"><span class="bread-current bread-' . $post->ID . '" title="' . get_the_title() . '">' . get_the_title() . '</span></span>';
} elseif ( is_singular( 'page' ) ) {
if ( $post->post_parent ) {
$parents = get_post_ancestors( $post->ID );
$parents = array_reverse( $parents );
foreach ( $parents as $parent ) {
if ($parent != get_option('page_on_front')) {
$html .= '<span class="item-parent item-parent-' . esc_attr( $parent ) . '"><a class="bread-parent bread-parent-' . esc_attr( $parent ) . '" href="' . esc_url( get_permalink( $parent ) ) . '" title="' . get_the_title( $parent ) . '">' . get_the_title( $parent ) . '</a></span>';
$html .= $separator;
}
}
}
$html .= '<span class="item-current item-' . $post->ID . '"><span title="' . get_the_title() . '"> ' . get_the_title() . '</span></span>';
} elseif ( is_singular( 'attachment' ) ) {
$parent_id = $post->post_parent;
$parent_title = get_the_title( $parent_id );
$parent_permalink = esc_url( get_permalink( $parent_id ) );
$html .= '<span class="item-parent"><a class="bread-parent" href="' . esc_url( $parent_permalink ) . '" title="' . esc_attr( $parent_title ) . '">' . esc_attr( $parent_title ) . '</a></span>';
$html .= $separator;
$html .= '<span class="item-current item-' . $post->ID . '"><span title="' . get_the_title() . '"> ' . get_the_title() . '</span></span>';
} elseif ( is_singular() ) {
$post_type = get_post_type();
$post_type_object = get_post_type_object( $post_type );
$post_type_archive = get_post_type_archive_link( $post_type );
$html .= '<span class="item-cat item-custom-post-type-' . esc_attr( $post_type ) . '"><a class="bread-cat bread-custom-post-type-' . esc_attr( $post_type ) . '" href="' . esc_url( $post_type_archive ) . '" title="' . esc_attr( $post_type_object->labels->name ) . '">' . esc_attr( $post_type_object->labels->name ) . '</a></span>';
$html .= $separator;
$html .= '<span class="item-current item-' . $post->ID . '"><span class="bread-current bread-' . $post->ID . '" title="' . $post->post_title . '">' . $post->post_title . '</span></span>';
} elseif ( is_category() ) {
$parent = get_queried_object()->category_parent;
if ( $parent !== 0 ) {
$parent_category = get_category( $parent );
$category_link = get_category_link( $parent );
$html .= '<span class="item-parent item-parent-' . esc_attr( $parent_category->slug ) . '"><a class="bread-parent bread-parent-' . esc_attr( $parent_category->slug ) . '" href="' . esc_url( $category_link ) . '" title="' . esc_attr( $parent_category->name ) . '">' . esc_attr( $parent_category->name ) . '</a></span>';
$html .= $separator;
}
$html .= '<span class="item-current item-cat"><span class="bread-current bread-cat" title="' . $post->ID . '">' . single_cat_title( '', false ) . '</span></span>';
} elseif ( is_tag() ) {
$html .= '<span class="item-current item-tag"><span class="bread-current bread-tag">' . single_tag_title( '', false ) . '</span></span>';
} elseif ( is_author() ) {
$html .= '<span class="item-current item-author"><span class="bread-current bread-author">' . get_queried_object()->display_name . '</span></span>';
} elseif ( is_day() ) {
$html .= '<span class="item-current item-day"><span class="bread-current bread-day">' . get_the_date() . '</span></span>';
} elseif ( is_month() ) {
$html .= '<span class="item-current item-month"><span class="bread-current bread-month">' . get_the_date( 'F Y' ) . '</span></span>';
} elseif ( is_year() ) {
$html .= '<span class="item-current item-year"><span class="bread-current bread-year">' . get_the_date( 'Y' ) . '</span></span>';
} elseif ( is_archive() ) {
$custom_tax_name = get_queried_object()->name;
$html .= '<span class="item-current item-archive"><span class="bread-current bread-archive">' . esc_attr( $custom_tax_name ) . '</span></span>';
} elseif ( is_search() ) {
$html .= '<span class="item-current item-search"><span class="bread-current bread-search">Search results for: ' . get_search_query() . '</span></span>';
} elseif ( is_404() ) {
$html .= '<span>' . __( 'Error 404', 'ignite' ) . '</span>';
} elseif ( is_home() ) {
$html .= '<span>' . get_the_title( get_option( 'page_for_posts' ) ) . '</span>';
}
$html .= '</div>';
$html = apply_filters( 'ct_ignite_breadcrumbs_filter', $html );
echo wp_kses_post( $html );
}
}
and call the function in a child theme file like header.php or content-page.php or wherever you want to have the breadcrumbs:
<?php ct_ignite_breadcrumbs(); ?>
and don’t forget to customize your breadcrumbs css classes ??
Have a nice day Ben and maybe I’ll consider one of your theme for my next project, they are so clean and modern ??
Marius
