breadcrumb( '', '
' );
}
/**
* Get a term's parents.
*
* @param object $term Term to get the parents for
* @return array
*/
function get_term_parents( $term ) {
$tax = $term->taxonomy;
$parents = array();
while ( $term->parent != 0 ) {
$term = get_term( $term->parent, $tax );
$parents[] = $term;
}
return array_reverse( $parents );
}
/**
* Display or return the full breadcrumb path.
*
* @param string $before The prefix for the breadcrumb, usually something like "You're here".
* @param string $after The suffix for the breadcrumb.
* @param bool $display When true, echo the breadcrumb, if not, return it as a string.
* @return string
*/
function breadcrumb( $before = '', $after = '', $display = true ) {
$options = get_wpseo_options();
global $wp_query, $post;
$on_front = get_option( 'show_on_front' );
$blog_page = get_option( 'page_for_posts' );
$links = array(
array(
'url' => get_site_url(),
'text' => ( isset( $options['breadcrumbs-home'] ) && $options['breadcrumbs-home'] != '' ) ? $options['breadcrumbs-home'] : __( 'Home', 'wordpress-seo' )
)
);
if ( "page" == $on_front && 'post' == get_post_type() && !is_home() ) {
if ( $blog_page && ( !isset( $options['breadcrumbs-blog-remove'] ) || !$options['breadcrumbs-blog-remove'] ) )
$links[] = array( 'id' => $blog_page );
}
if ( ( $on_front == "page" && is_front_page() ) || ( $on_front == "posts" && is_home() ) ) {
} else if ( $on_front == "page" && is_home() ) {
$links[] = array( 'id' => $blog_page );
} else if ( is_singular() ) {
if ( get_post_type_archive_link( $post->post_type ) ) {
$links[] = array( 'ptarchive' => $post->post_type );
}
if ( 0 == $post->post_parent ) {
if ( isset( $options['post_types-' . $post->post_type . '-maintax'] ) && $options['post_types-' . $post->post_type . '-maintax'] != '0' ) {
$main_tax = $options['post_types-' . $post->post_type . '-maintax'];
$terms = wp_get_object_terms( $post->ID, $main_tax );
if ( count( $terms ) > 0 ) {
if ( is_taxonomy_hierarchical( $main_tax ) && $terms[0]->parent != 0 ) {
foreach ( $this->get_term_parents( $terms[0] ) as $parent_term ) {
$links[] = array( 'term' => $parent_term );
}
}
$links[] = array( 'term' => $terms[0] );
}
}
} else {
if ( isset( $post->ancestors ) ) {
if ( is_array( $post->ancestors ) )
$ancestors = array_values( $post->ancestors );
else
$ancestors = array( $post->ancestors );
} else {
$ancestors = array( $post->post_parent );
}
// Reverse the order so it's oldest to newest
$ancestors = array_reverse( apply_filters( 'wp_seo_get_bc_ancestors', $ancestors ) );
foreach ( $ancestors as $ancestor ) {
$links[] = array( 'id' => $ancestor );
}
}
$links[] = array( 'id' => $post->ID );
} else {
if ( is_post_type_archive() ) {
$links[] = array( 'ptarchive' => get_post_type() );
} else if ( is_tax() || is_tag() || is_category() ) {
$term = $wp_query->get_queried_object();
if ( isset( $options['taxonomy-' . $term->taxonomy . '-ptparent'] ) && $options['taxonomy-' . $term->taxonomy . '-ptparent'] != '' ) {
if ( 'post' == $options['taxonomy-' . $term->taxonomy . '-ptparent'] && get_option( 'show_on_front' ) == 'page' ) {
if ( get_option( 'page_for_posts' ) ) {
$links[] = array( 'id' => get_option( 'page_for_posts' ) );
}
} else {
$links[] = array( 'ptarchive' => $options['taxonomy-' . $term->taxonomy . '-ptparent'] );
}
}
if ( is_taxonomy_hierarchical( $term->taxonomy ) && $term->parent != 0 ) {
foreach ( $this->get_term_parents( $term ) as $parent_term ) {
$links[] = array( 'term' => $parent_term );
}
}
$links[] = array( 'term' => $term );
} else if ( is_date() ) {
if ( isset( $options['breadcrumbs-archiveprefix'] ) )
$bc = $options['breadcrumbs-archiveprefix'];
else
$bc = __( 'Archives for', 'wordpress-seo' );
if ( is_day() ) {
global $wp_locale;
$links[] = array(
'url' => get_month_link( get_query_var( 'year' ), get_query_var( 'monthnum' ) ),
'text' => $wp_locale->get_month( get_query_var( 'monthnum' ) ) . ' ' . get_query_var( 'year' )
);
$links[] = array( 'text' => $bc . " " . get_the_date() );
} else if ( is_month() ) {
$links[] = array( 'text' => $bc . " " . single_month_title( ' ', false ) );
} else if ( is_year() ) {
$links[] = array( 'text' => $bc . " " . get_query_var( 'year' ) );
}
} elseif ( is_author() ) {
if ( isset( $options['breadcrumbs-archiveprefix'] ) )
$bc = $options['breadcrumbs-archiveprefix'];
else
$bc = __( 'Archives for', 'wordpress-seo' );
$user = $wp_query->get_queried_object();
$links[] = array( 'text' => $bc . " " . $user->display_name );
} elseif ( is_search() ) {
if ( isset( $options['breadcrumbs-searchprefix'] ) && $options['breadcrumbs-searchprefix'] != '' )
$bc = $options['breadcrumbs-searchprefix'];
else
$bc = __( 'You searched for', 'wordpress-seo' );
$links[] = array( 'text' => $bc . ' "' . esc_html( get_search_query() ) . '"' );
} elseif ( is_404() ) {
if ( isset( $options['breadcrumbs-404crumb'] ) && $options['breadcrumbs-404crumb'] != '' )
$crumb404 = $options['breadcrumbs-404crumb'];
else
$crumb404 = __( 'Error 404: Page not found', 'wordpress-seo' );
$links[] = array( 'text' => $crumb404 );
}
}
$links = apply_filters( 'wpseo_breadcrumb_links', $links );
$output = $this->create_breadcrumbs_string( $links );
if ( isset( $options['breadcrumbs-prefix'] ) && $options['breadcrumbs-prefix'] != "" )
$output = $options['breadcrumbs-prefix'] . " " . $output;
if ( $display ) {
echo $before . $output . $after;
return true;
} else {
return $before . $output . $after;
}
}
/**
* Take the links array and return a full breadcrumb string.
*
* Each element of the links array can either have one of these keys:
* "id" for post types;
* "ptarchive" for a post type archive;
* "term" for a taxonomy term.
* If either of these 3 are set, the url and text are retrieved. If not, url and text have to be set.
*
* @link http://support.google.com/webmasters/bin/answer.py?hl=en&answer=185417 Google documentation on RDFA
*
* @param array $links The links that should be contained in the breadcrumb.
* @param string $wrapper The wrapping element for the entire breadcrumb path.
* @param string $element The wrapping element for each individual link.
* @return string
*/
function create_breadcrumbs_string( $links, $wrapper = 'span', $element = 'span' ) {
global $paged;
$opt = get_wpseo_options();
$sep = ( isset( $opt['breadcrumbs-sep'] ) && $opt['breadcrumbs-sep'] != '' ) ? $opt['breadcrumbs-sep'] : '»';
$output = '';
foreach ( $links as $i => $link ) {
if ( !empty( $output ) )
$output .= " $sep ";
if ( isset( $link['id'] ) ) {
$link['url'] = get_permalink( $link['id'] );
$link['text'] = wpseo_get_value( 'bctitle', $link['id'] );
if ( empty( $link['text'] ) )
$link['text'] = strip_tags( get_the_title( $link['id'] ) );
$link['text'] = apply_filters( 'wp_seo_get_bc_title', $link['text'], $link['id'] );
}
if ( isset( $link['term'] ) ) {
$bctitle = wpseo_get_term_meta( $link['term'], $link['term']->taxonomy, 'bctitle' );
if ( !$bctitle )
$bctitle = $link['term']->name;
$link['url'] = get_term_link( $link['term'] );
$link['text'] = $bctitle;
}
if ( isset( $link['ptarchive'] ) ) {
if ( isset( $opt['bctitle-ptarchive-' . $link['ptarchive']] ) && '' != $opt['bctitle-ptarchive-' . $link['ptarchive']] ) {
$archive_title = $opt['bctitle-ptarchive-' . $link['ptarchive']];
} else {
$post_type_obj = get_post_type_object( $link['ptarchive'] );
$archive_title = $post_type_obj->labels->menu_name;
}
$link['url'] = get_post_type_archive_link( $link['ptarchive'] );
$link['text'] = $archive_title;
}
$element = apply_filters( 'wpseo_breadcrumb_single_link_wrapper', $element );
$link_output = '<' . $element . ' typeof="v:Breadcrumb">';
if ( isset( $link['url'] ) && ( $i < ( count( $links ) - 1 ) || $paged ) ) {
$link_output .= '' . $link['text'] . '';
} else {
if ( isset( $opt['breadcrumbs-boldlast'] ) && $opt['breadcrumbs-boldlast'] ) {
$link_output .= '' . $link['text'] . '';
} else {
$link_output .= '' . $link['text'] . '';
}
}
$link_output .= '';
$output .= apply_filters( 'wpseo_breadcrumb_single_link', $link_output, $link );
}
$id = apply_filters( 'wpseo_breadcrumb_output_id', false );
if ( !empty( $id ) )
$id = ' id="' . $id . '"';
$class = apply_filters( 'wpseo_breadcrumb_output_class', false );
if ( !empty( $class ) )
$class = ' class="' . $class . '"';
$wrapper = apply_filters( 'wpseo_breadcrumb_output_wrapper', $wrapper );
return apply_filters( 'wpseo_breadcrumb_output', '<' . $wrapper . $id . $class . ' xmlns:v="http://rdf.data-vocabulary.org/#">' . $output . '' );
}
}
global $wpseo_bc;
$wpseo_bc = new WPSEO_Breadcrumbs();
if ( !function_exists( 'yoast_breadcrumb' ) ) {
/**
* Template tag for breadcrumbs.
*
* @param string $before What to show before the breadcrumb.
* @param string $after What to show after the breadcrumb.
* @param bool $display Whether to display the breadcrumb (true) or return it (false).
* @return string
*/
function yoast_breadcrumb( $before = '', $after = '', $display = true ) {
global $wpseo_bc;
return $wpseo_bc->breadcrumb( $before, $after, $display );
}
}