File: /var/www/html/wp-content/themes/glint/inc/breadcrumb.php
<?php
/**
* Glint Custom Breadcrumb
* @package WordPress
* @subpackage Glint
* @since 1.0.0
*/
if ( ! function_exists( 'Glint_Breadcrumb' ) ) {
function Glint_Breadcrumb() {
// Set variables for later use
$home_link = home_url( '/' );
$home_text = esc_html__( 'Home', 'glint' );
$link_before = '<li typeof="v:Breadcrumb">';
$link_after = '</li>';
$link_attr = ' rel="v:url" property="v:title"';
$link = $link_before . '<a' . $link_attr . ' href="%1$s">%2$s</a>' . $link_after;
$delimiter = ''; // Delimiter between crumbs
$before = '<li class="current">'; // Tag before the current crumb
$after = '</li>'; // Tag after the current crumb
$page_addon = ''; // Adds the page number if the query is paged
$breadcrumb_trail = '';
$category_links = '';
/**
* Set our own $wp_the_query variable. Do not use the global variable version due to
* reliability
*/
$wp_the_query = $GLOBALS['wp_the_query'];
$queried_object = $wp_the_query->get_queried_object();
// Handle single post requests which includes single pages, posts and attatchments
if ( is_singular() ) {
/**
* Set our own $post variable. Do not use the global variable version due to
* reliability. We will set $post_object variable to $GLOBALS['wp_the_query']
*/
$post_object = sanitize_post( $queried_object );
// Set variables
$title = $post_object->post_title;
$parent = $post_object->post_parent;
$post_type = $post_object->post_type;
$post_id = $post_object->ID;
$post_link = $before . $title . $after;
$parent_string = '';
$post_type_link = '';
if ( 'post' === $post_type ) {
// Get the post categories
$categories = get_the_category( $post_id );
if ( $categories ) {
// Lets grab the first category
$category = $categories[0];
$category_links = get_category_parents( $category, true, $delimiter );
$category_links = str_replace( '<a', $link_before . '<a' . $link_attr, $category_links );
$category_links = str_replace( '</a>', '</a>' . $link_after, $category_links );
}
}
if ( ! in_array( $post_type, [ 'post', 'page', 'attachment' ] ) ) {
$post_type_object = get_post_type_object( $post_type );
$archive_link = esc_url( get_post_type_archive_link( $post_type ) );
$post_type_link = sprintf( $link, $archive_link, $post_type_object->labels->singular_name );
}
// Get post parents if $parent !== 0
if ( 0 !== $parent ) {
$parent_links = [];
while ( $parent ) {
$post_parent = get_post( $parent );
$parent_links[] = sprintf( $link, esc_url( get_permalink( $post_parent->ID ) ), get_the_title( $post_parent->ID ) );
$parent = $post_parent->post_parent;
}
$parent_links = array_reverse( $parent_links );
$parent_string = implode( $delimiter, $parent_links );
}
// Lets build the breadcrumb trail
if ( $parent_string ) {
$breadcrumb_trail = $parent_string . $delimiter . $post_link;
} else {
$breadcrumb_trail = $post_link;
}
if ( $post_type_link ) {
$breadcrumb_trail = $post_type_link . $delimiter . $breadcrumb_trail;
}
if ( $category_links ) {
$breadcrumb_trail = $category_links . $breadcrumb_trail;
}
}
// Handle archives which includes category-, tag-, taxonomy-, date-, custom post type archives and author archives
if ( is_archive() ) {
if ( is_category()
|| is_tag()
|| is_tax()
) {
// Set the variables for this section
$term_object = get_term( $queried_object );
$taxonomy = $term_object->taxonomy;
$term_id = $term_object->term_id;
$term_name = $term_object->name;
$term_parent = $term_object->parent;
$taxonomy_object = get_taxonomy( $taxonomy );
$current_term_link = $before . $taxonomy_object->labels->singular_name . ': ' . $term_name . $after;
$parent_term_string = '';
if ( 0 !== $term_parent ) {
// Get all the current term ancestors
$parent_term_links = [];
while ( $term_parent ) {
$term = get_term( $term_parent, $taxonomy );
$parent_term_links[] = sprintf( $link, esc_url( get_term_link( $term ) ), $term->name );
$term_parent = $term->parent;
}
$parent_term_links = array_reverse( $parent_term_links );
$parent_term_string = implode( $delimiter, $parent_term_links );
}
if ( $parent_term_string ) {
$breadcrumb_trail = $parent_term_string . $delimiter . $current_term_link;
} else {
$breadcrumb_trail = $current_term_link;
}
} elseif ( is_author() ) {
$breadcrumb_trail = $before . esc_html__( 'Author archive for: ', 'glint' ) . $queried_object->data->display_name . $after;
} elseif ( is_date() ) {
// Set default variables
$get_query_var = get_query_var( 'm' );
$year = $wp_the_query->query_vars['year'];
$monthnum = $wp_the_query->query_vars['monthnum'];
$day = $wp_the_query->query_vars['day'];
if ( 0 == $year || 0 == $monthnum ) {
$year = substr( $get_query_var, 0, 4 );
$monthnum = substr( $get_query_var, 4, 2 );;
}
// Get the month name if $monthnum has a value
if ( $monthnum ) {
$date_time = DateTime::createFromFormat( '!m', $monthnum );
$month_name = $date_time->format( 'F' );
}
if ( is_year() ) {
$breadcrumb_trail = $before . $year . $after;
} elseif ( is_month() ) {
$year_link = sprintf( $link, esc_url( get_year_link( $year ) ), $year );
$breadcrumb_trail = $year_link . $delimiter . $before . $month_name . $after;
} elseif ( is_day() ) {
$year_link = sprintf( $link, esc_url( get_year_link( $year ) ), $year );
$month_link = sprintf( $link, esc_url( get_month_link( $year, $monthnum ) ), $month_name );
$breadcrumb_trail = $year_link . $delimiter . $month_link . $delimiter . $before . $day . $after;
}
} elseif ( is_post_type_archive() ) {
$post_type = $wp_the_query->query_vars['post_type'];
$post_type_object = get_post_type_object( $post_type );
$breadcrumb_trail = $before . $post_type_object->labels->singular_name . $after;
}
}
// Handle the search page
if ( is_search() ) {
$breadcrumb_trail = $before . esc_html__( 'Searched for: ', 'glint' ) . get_search_query() . $after;
}
// Handle 404's
if ( is_404() ) {
$breadcrumb_trail = $before . esc_html__( 'Error 404', 'glint' ) . $after;
}
// Handle paged pages
if ( is_paged() ) {
$current_page = get_query_var( 'paged' ) ? get_query_var( 'paged' ) : get_query_var( 'page' );
$page_addon = $before . sprintf( esc_html__( ' ( Page %s )', 'glint' ), number_format_i18n( $current_page ) ) . $after;
}
$breadcrumb_output_link = '';
$breadcrumb_output_link .= '<ul class="page-list">';
if ( is_home()
|| is_front_page()
) {
// Do not show breadcrumbs on page one of home and frontpage
if ( is_paged() ) {
$breadcrumb_output_link .= '<li><a href="' . esc_url( $home_link ) . '">' . esc_html( $home_text ) . '</a></li>';
$breadcrumb_output_link .= $page_addon;
}
if ( is_home() && ! is_front_page() ) {
$breadcrumb_output_link .= '<li><a href="' . esc_url( $home_link ) . '">' . esc_html( $home_text ) . '</a></li>';
$breadcrumb_output_link .= '<li> ' . esc_html( get_the_title( get_option( 'page_for_posts' ) ) ) . '</li>';
}
} else {
$breadcrumb_output_link .= '<li><a href="' . esc_url( $home_link ) . '" rel="v:url" property="v:title">' . esc_html( $home_text ) . '</a></li>';
$breadcrumb_output_link .= $delimiter;
$breadcrumb_output_link .= $breadcrumb_trail;
$breadcrumb_output_link .= $page_addon;
}
$breadcrumb_output_link .= '</ul><!-- .breadcrumbs -->';
echo wp_kses_post( $breadcrumb_output_link );
}
}