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<?php
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if ( ! defined( 'ABSPATH' ) ) exit;
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/**
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* SEO plugins integration
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*/
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class Permalink_Manager_SEO_Plugins {
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public function __construct() {
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add_action( 'init', array( $this, 'init_hooks' ), 99 );
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}
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/**
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* Add support for SEO plugins using their hooks
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*/
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function init_hooks() {
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// Yoast SEO
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add_filter( 'wpseo_xml_sitemap_post_url', array( $this, 'yoast_fix_sitemap_urls' ), 9 );
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if ( defined( 'WPSEO_VERSION' ) && version_compare( WPSEO_VERSION, '14.0', '>=' ) ) {
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add_action( 'permalink_manager_updated_post_uri', array( $this, 'yoast_update_indexable_permalink' ), 10, 3 );
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add_action( 'permalink_manager_updated_term_uri', array( $this, 'yoast_update_indexable_permalink' ), 10, 3 );
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add_filter( 'wpseo_canonical', array( $this, 'yoast_fix_canonical' ), 10 );
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add_filter( 'wpseo_opengraph_url', array( $this, 'yoast_fix_canonical' ), 10 );
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add_filter( 'wpseo_dynamic_permalinks_enabled', '__return_true', 5 );
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}
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// Breadcrumbs
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add_filter( 'wpseo_breadcrumb_links', array( $this, 'filter_breadcrumbs' ), 9 );
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add_filter( 'rank_math/frontend/breadcrumb/items', array( $this, 'filter_breadcrumbs' ), 9 );
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add_filter( 'seopress_pro_breadcrumbs_crumbs', array( $this, 'filter_breadcrumbs' ), 9 );
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add_filter( 'woocommerce_get_breadcrumb', array( $this, 'filter_breadcrumbs' ), 9 );
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add_filter( 'slim_seo_breadcrumbs_links', array( $this, 'filter_breadcrumbs' ), 9 );
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add_filter( 'aioseo_breadcrumbs_trail', array( $this, 'filter_breadcrumbs' ), 9 );
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add_filter( 'avia_breadcrumbs_trail', array( $this, 'filter_breadcrumbs' ), 100 );
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}
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/**
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* Get the HTTP protocol of the home URL and use it in Yoast SEO sitemap permalinks
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*
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* @param string $permalink The permalink in the sitemap
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*
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* @return string The sitemap's permalink
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*/
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function yoast_fix_sitemap_urls( $permalink ) {
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if ( class_exists( 'WPSEO_Utils' ) ) {
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$home_url = WPSEO_Utils::home_url();
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$home_protocol = parse_url( $home_url, PHP_URL_SCHEME );
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$permalink = preg_replace( "/^http(s)?/", $home_protocol, $permalink );
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}
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return $permalink;
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}
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/**
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* Update the permalink in the Yoast SEO indexable table when the permalink is changed
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*
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* @param int $element_id The ID of the post/term element that was updated.
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* @param string $new_uri The new URI of the element.
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* @param string $old_uri The old URI of the element.
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*/
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function yoast_update_indexable_permalink( $element_id, $new_uri, $old_uri ) {
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global $wpdb;
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if ( ! empty( $new_uri ) && ! empty( $old_uri ) && $new_uri !== $old_uri ) {
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if ( current_filter() == 'permalink_manager_updated_term_uri' ) {
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$permalink = get_term_link( (int) $element_id );
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$object_type = 'term';
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} else {
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$permalink = get_permalink( $element_id );
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$object_type = 'post';
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}
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if ( ! empty( $permalink ) ) {
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$permalink_hash = strlen( $permalink ) . ':' . md5( $permalink );
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$wpdb->update( "{$wpdb->prefix}yoast_indexable", array( 'permalink' => $permalink, 'permalink_hash' => $permalink_hash ), array( 'object_id' => $element_id, 'object_type' => $object_type ), array( '%s', '%s' ), array( '%d', '%s' ) );
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}
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}
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}
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/**
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* Filter the canonical permalink used by SEO using 'wpseo_canonical' & 'wpseo_opengraph_url' hooks
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*
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* @param string $url The canonical URL that Yoast SEO has generated.
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*
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* @return string the URL.
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*/
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function yoast_fix_canonical( $url ) {
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global $pm_query, $wp_rewrite;
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if ( ! empty( $pm_query['id'] ) ) {
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$element = get_queried_object();
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if ( ! empty( $element->ID ) && ! empty( $element->post_type ) ) {
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$new_url = get_permalink( $element->ID );
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// Do not filter if custom canonical URL is set
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$yoast_canonical_url = get_post_meta( $element->ID, '_yoast_wpseo_canonical', true );
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if ( ! empty( $yoast_canonical_url ) ) {
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return $url;
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}
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if ( is_home() ) {
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$paged = ( get_query_var( 'paged' ) ) ? get_query_var( 'paged' ) : 1;
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$new_url = ( $paged > 1 ) ? sprintf( '%s/%s/%d', trim( $new_url, '/' ), $wp_rewrite->pagination_base, $paged ) : $new_url;
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} else {
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$paged = ( get_query_var( 'page' ) ) ? get_query_var( 'page' ) : 1;
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$new_url = ( $paged > 1 ) ? sprintf( '%s/%d', trim( $new_url, '/' ), $paged ) : $new_url;
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}
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} else if ( ! empty( $element->taxonomy ) && ! empty( $element->term_id ) ) {
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$new_url = get_term_link( $element, $element->taxonomy );
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// Do not filter if custom canonical URL is set
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if ( class_exists( 'WPSEO_Taxonomy_Meta' ) ) {
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$yoast_canonical_url = WPSEO_Taxonomy_Meta::get_term_meta( $element, $element->taxonomy, 'canonical' );
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if ( ! empty( $yoast_canonical_url ) ) {
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return $url;
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}
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}
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$paged = ( get_query_var( 'paged' ) ) ? get_query_var( 'paged' ) : 1;
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if ( $paged > 1 ) {
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$new_url = sprintf( '%s/%s/%d', trim( $new_url, '/' ), $wp_rewrite->pagination_base, $paged );
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}
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}
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$url = ( ! empty( $new_url ) ) ? $new_url : $url;
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$url = Permalink_Manager_Core_Functions::control_trailing_slashes( $url );
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}
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return $url;
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}
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/**
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* Filter the breadcrumbs array to match the structure of currently requested URL
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*
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* @param array $links The current breadcrumb links.
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*
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* @return array The $links array.
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*/
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function filter_breadcrumbs( $links ) {
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// Get post type permastructure settings
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global $permalink_manager_options, $post, $wpdb, $wp, $wp_current_filter;
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// Check if the filter should be activated
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if ( empty( $permalink_manager_options['general']['yoast_breadcrumbs'] ) ) {
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return $links;
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}
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// Get current post/page/term (if available)
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$queried_element = get_queried_object();
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if ( ! empty( $queried_element->ID ) ) {
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$element_id = $queried_element->ID;
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} else if ( ! empty( $queried_element->term_id ) ) {
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$element_id = "tax-{$queried_element->term_id}";
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} else if ( defined( 'REST_REQUEST' ) && ! empty( $post->ID ) ) {
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$element_id = $post->ID;
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}
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// Get the custom permalink (if available) or the current request URL (if unavailable)
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$custom_uri = ( ! empty( $element_id ) ) ? Permalink_Manager_URI_Functions::get_single_uri( $element_id, false, true, null ) : '';
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if ( ! empty( $custom_uri ) ) {
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$custom_uri = preg_replace( "/([^\/]+)$/", '', $custom_uri );
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} else {
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return $links;
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}
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$custom_uri_parts = explode( '/', trim( $custom_uri ) );
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$breadcrumbs = array();
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$snowball = '';
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$available_taxonomies = Permalink_Manager_Helper_Functions::get_taxonomies_array( null, null, true );
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$available_post_types = Permalink_Manager_Helper_Functions::get_post_types_array( null, null, true );
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$available_post_types_archive = Permalink_Manager_Helper_Functions::get_post_types_array( 'archive_slug', null, true );
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$current_filter = end( $wp_current_filter );
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// Get Yoast Meta (the breadcrumbs titles can be changed in Yoast metabox)
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$yoast_meta_terms = get_option( 'wpseo_taxonomy_meta' );
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// Check what array keys should be used for breadcrumbs ("All In One SEO" uses a more complicated schema)
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if ( $current_filter == 'aioseo_breadcrumbs_trail' ) {
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$breadcrumb_key_text = 'label';
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$breadcrumb_key_url = 'link';
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$is_aioseo = true;
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} else if ( in_array( $current_filter, array( 'wpseo_breadcrumb_links', 'slim_seo_breadcrumbs_links' ) ) ) {
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$breadcrumb_key_text = 'text';
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$breadcrumb_key_url = 'url';
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$is_aioseo = false;
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} else {
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$breadcrumb_key_text = 0;
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$breadcrumb_key_url = 1;
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$is_aioseo = false;
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}
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// Get internal breadcrumb elements
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foreach ( $custom_uri_parts as $slug ) {
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if ( empty( $slug ) ) {
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continue;
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}
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$snowball = ( empty( $snowball ) ) ? $slug : "{$snowball}/{$slug}";
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// 1A. Try to match any custom URI
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$uri = trim( $snowball, "/" );
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$element = Permalink_Manager_URI_Functions::find_uri( $uri, true );
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if ( ! empty( $element ) && strpos( $element, 'tax-' ) !== false ) {
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$element_id = intval( preg_replace( "/[^0-9]/", "", $element ) );
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$element = get_term( $element_id );
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} else if ( is_numeric( $element ) ) {
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$element = get_post( $element );
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}
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// 1B. Try to get term
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if ( empty( $element ) && ! empty( $available_taxonomies ) ) {
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$sql = sprintf( "SELECT t.term_id, t.name, tt.taxonomy FROM {$wpdb->terms} AS t LEFT JOIN {$wpdb->term_taxonomy} AS tt ON t.term_id = tt.term_id WHERE slug = '%s' AND tt.taxonomy IN ('%s') LIMIT 1", esc_sql( $slug ), implode( "','", array_keys( $available_taxonomies ) ) );
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$element = $wpdb->get_row( $sql );
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}
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// 1C. Try to get page/post
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if ( empty( $element ) && ! empty( $available_post_types ) ) {
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$sql = sprintf( "SELECT ID, post_title, post_type FROM {$wpdb->posts} WHERE post_name = '%s' AND post_status = 'publish' AND post_type IN ('%s') AND post_type != 'attachment' LIMIT 1", esc_sql( $slug ), implode( "','", array_keys( $available_post_types ) ) );
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$element = $wpdb->get_row( $sql );
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}
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// 1D. Try to get post type archive
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if ( empty( $element ) && ! empty( $available_post_types_archive ) && in_array( $snowball, $available_post_types_archive ) ) {
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$post_type_slug = array_search( $snowball, $available_post_types_archive );
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$element = get_post_type_object( $post_type_slug );
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}
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// 2A. When the term is found, we can add it to the breadcrumbs
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if ( ! empty( $element->term_id ) ) {
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$term_id = apply_filters( 'wpml_object_id', $element->term_id, $element->taxonomy, true );
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$term = ( ( $element->term_id !== $term_id ) || $is_aioseo ) ? get_term( $term_id ) : $element;
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// Alternative title
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if ( $current_filter == 'wpseo_breadcrumb_links' ) {
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$alt_title = ( ! empty( $yoast_meta_terms[ $term->taxonomy ][ $term->term_id ]['wpseo_bctitle'] ) ) ? $yoast_meta_terms[ $term->taxonomy ][ $term->term_id ]['wpseo_bctitle'] : '';
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} else if ( $current_filter == 'seopress_pro_breadcrumbs_crumbs' ) {
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$alt_title = get_term_meta( $term->term_id, '_seopress_robots_breadcrumbs', true );
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} else if ( $current_filter == 'rank_math/frontend/breadcrumb/items' ) {
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$alt_title = get_term_meta( $term->term_id, 'rank_math_breadcrumb_title', true );
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}
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$title = ( ! empty( $alt_title ) ) ? $alt_title : $term->name;
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if ( $is_aioseo ) {
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$breadcrumbs[] = array(
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$breadcrumb_key_text => wp_strip_all_tags( $title ),
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$breadcrumb_key_url => get_term_link( (int) $term->term_id, $term->taxonomy ),
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'type' => 'taxonomy',
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'subType' => 'parent',
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'reference' => $term,
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);
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} else {
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$breadcrumbs[] = array(
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$breadcrumb_key_text => wp_strip_all_tags( $title ),
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$breadcrumb_key_url => get_term_link( (int) $term->term_id, $term->taxonomy )
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);
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}
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} // 2B. When the post/page is found, we can add it to the breadcrumbs
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else if ( ! empty( $element->ID ) ) {
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$page_id = apply_filters( 'wpml_object_id', $element->ID, $element->post_type, true );
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$page = ( ( $element->ID !== $page_id ) || $is_aioseo ) ? get_post( $page_id ) : $element;
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// Alternative title
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if ( $current_filter == 'wpseo_breadcrumb_links' ) {
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$alt_title = get_post_meta( $page->ID, '_yoast_wpseo_bctitle', true );
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} else if ( $current_filter == 'seopress_pro_breadcrumbs_crumbs' ) {
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$alt_title = get_post_meta( $page->ID, '_seopress_robots_breadcrumbs', true );
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} else if ( $current_filter == 'rank_math/frontend/breadcrumb/items' ) {
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$alt_title = get_post_meta( $page->ID, 'rank_math_breadcrumb_title', true );
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}
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$title = ( ! empty( $alt_title ) ) ? $alt_title : $page->post_title;
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if ( $is_aioseo ) {
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$breadcrumbs[] = array(
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$breadcrumb_key_text => wp_strip_all_tags( $title ),
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$breadcrumb_key_url => get_permalink( $page->ID ),
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'type' => 'single',
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'subType' => '',
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'reference' => $page
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);
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} else {
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$breadcrumbs[] = array(
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$breadcrumb_key_text => wp_strip_all_tags( $title ),
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$breadcrumb_key_url => get_permalink( $page->ID )
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);
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}
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} // 2C. When the post archive is found, we can add it to the breadcrumbs
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else if ( ! empty( $element->rewrite ) && ( ! empty( $element->labels->name ) ) ) {
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if ( $is_aioseo ) {
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$breadcrumbs[] = array(
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$breadcrumb_key_text => apply_filters( 'post_type_archive_title', $element->labels->name, $element->name ),
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$breadcrumb_key_url => get_post_type_archive_link( $element->name ),
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'type' => 'postTypeArchive',
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'subType' => '',
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'reference' => $element
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);
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} else {
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$breadcrumbs[] = array(
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$breadcrumb_key_text => apply_filters( 'post_type_archive_title', $element->labels->name, $element->name ),
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$breadcrumb_key_url => get_post_type_archive_link( $element->name )
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);
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}
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}
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}
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// Add new links to current breadcrumbs array
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if ( ! empty( $links ) && is_array( $links ) ) {
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$first_element = reset( $links );
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$last_element = end( $links );
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$b_last_element = ( count( $links ) > 2 && ( ! is_singular() || is_home() ) ) ? prev( $links ) : "";
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$breadcrumbs = ( ! empty( $breadcrumbs ) ) ? $breadcrumbs : array();
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// Support RankMath/SEOPress/WooCommerce/Slim SEO/AIOSEO breadcrumbs
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if ( in_array( $current_filter, array( 'wpseo_breadcrumb_links', 'rank_math/frontend/breadcrumb/items', 'seopress_pro_breadcrumbs_crumbs', 'woocommerce_get_breadcrumb', 'slim_seo_breadcrumbs_links', 'aioseo_breadcrumbs_trail' ) ) ) {
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if ( $current_filter == 'slim_seo_breadcrumbs_links' ) {
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$links = array_merge( array( $first_element ), $breadcrumbs );
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} // Append the element before the last element if the last breadcrumb does not have a URL set (e.g. if the /page/ endpoint is used)
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else if ( ! in_array( $current_filter, array( 'aioseo_breadcrumbs_trail', 'slim_seo_breadcrumbs_links' ) ) && ! empty( $wp->query_vars['paged'] ) && $wp->query_vars['paged'] > 1 && ! empty( $b_last_element[ $breadcrumb_key_url ] ) ) {
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$links = array_merge( array( $first_element ), $breadcrumbs, array( $b_last_element ), array( $last_element ) );
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} else {
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$links = array_merge( array( $first_element ), $breadcrumbs, array( $last_element ) );
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}
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} // Support Avia/Enfold breadcrumbs
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else if ( $current_filter == 'avia_breadcrumbs_trail' ) {
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foreach ( $breadcrumbs as &$breadcrumb ) {
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if ( isset( $breadcrumb[ $breadcrumb_key_text ] ) ) {
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$breadcrumb = sprintf( '<a href="%s" title="%2$s">%2$s</a>', esc_attr( $breadcrumb[ $breadcrumb_key_url ] ), esc_attr( $breadcrumb[ $breadcrumb_key_text ] ) );
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}
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}
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$links = array_merge( array( $first_element ), $breadcrumbs, array( 'trail_end' => $last_element ) );
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}
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}
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return array_filter( $links );
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}
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}
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Reference in New Issue
Block a user