vanced' ], true ) ) && ( $identifier !== '' && ! isset( self::$help_texts[ $type ][ $identifier ] ) ) ) { self::$help_texts[ $type ][ $identifier ] = $replacement_variable; } } /** * Generates a list of replacement variables based on the help texts. * * @return array List of replace vars. */ public function get_replacement_variables_list() { self::setup_statics_once(); $replacement_variables = array_merge( $this->get_replacement_variables(), WPSEO_Custom_Fields::get_custom_fields(), WPSEO_Custom_Taxonomies::get_custom_taxonomies() ); return array_map( [ $this, 'format_replacement_variable' ], $replacement_variables ); } /** * Creates a merged associative array of both the basic and advanced help texts. * * @return array Array with the replacement variables. */ private function get_replacement_variables() { $help_texts = array_merge( self::$help_texts['basic'], self::$help_texts['advanced'] ); return array_filter( array_keys( $help_texts ), [ $this, 'is_not_prefixed' ] ); } /** * Checks whether the replacement variable contains a `ct_` or `cf_` prefix, because they follow different logic. * * @param string $replacement_variable The replacement variable. * * @return bool True when the replacement variable is not prefixed. */ private function is_not_prefixed( $replacement_variable ) { $prefixes = [ 'cf_', 'ct_' ]; $prefix = $this->get_prefix( $replacement_variable ); return ! in_array( $prefix, $prefixes, true ); } /** * Strip the prefix from a replacement variable name. * * @param string $replacement_variable The replacement variable. * * @return string The replacement variable name without the prefix. */ private function strip_prefix( $replacement_variable ) { return substr( $replacement_variable, 3 ); } /** * Gets the prefix from a replacement variable name. * * @param string $replacement_variable The replacement variable. * * @return string The prefix of the replacement variable. */ private function get_prefix( $replacement_variable ) { return substr( $replacement_variable, 0, 3 ); } /** * Strips 'desc_' if present, and appends ' description' at the end. * * @param string $label The replacement variable. * * @return string The altered replacement variable name. */ private function handle_description( $label ) { if ( strpos( $label, 'desc_' ) === 0 ) { return substr( $label, 5 ) . ' description'; } return $label; } /** * Creates a label for prefixed replacement variables that matches the format in the editors. * * @param string $replacement_variable The replacement variable. * * @return string The replacement variable label. */ private function get_label( $replacement_variable ) { $prefix = $this->get_prefix( $replacement_variable ); if ( $prefix === 'cf_' ) { return $this->strip_prefix( $replacement_variable ) . ' (custom field)'; } if ( $prefix === 'ct_' ) { $label = $this->strip_prefix( $replacement_variable ); $label = $this->handle_description( $label ); return ucfirst( $label . ' (custom taxonomy)' ); } if ( $prefix === 'pt_' ) { if ( $replacement_variable === 'pt_single' ) { return 'Post type (singular)'; } return 'Post type (plural)'; } return ''; } /** * Formats the replacement variables. * * @param string $replacement_variable The replacement variable to format. * * @return array The formatted replacement variable. */ private function format_replacement_variable( $replacement_variable ) { return [ 'name' => $replacement_variable, 'value' => '', 'label' => $this->get_label( $replacement_variable ), ]; } /** * Set/translate the help texts for the WPSEO standard basic variables. */ private static function set_basic_help_texts() { /* translators: %s: wp_title() function. */ $separator_description = __( 'The separator defined in your theme\'s %s tag.', 'wordpress-seo' ); $separator_description = sprintf( $separator_description, // 'wp_title()' 'wp_title()' ); $replacement_variables = [ new WPSEO_Replacement_Variable( 'date', __( 'Date', 'wordpress-seo' ), __( 'Replaced with the date of the post/page', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'title', __( 'Title', 'wordpress-seo' ), __( 'Replaced with the title of the post/page', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'parent_title', __( 'Parent title', 'wordpress-seo' ), __( 'Replaced with the title of the parent page of the current page', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'archive_title', __( 'Archive title', 'wordpress-seo' ), __( 'Replaced with the normal title for an archive generated by WordPress', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'sitename', __( 'Site title', 'wordpress-seo' ), __( 'The site\'s name', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'sitedesc', __( 'Tagline', 'wordpress-seo' ), __( 'The site\'s tagline', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'excerpt', __( 'Excerpt', 'wordpress-seo' ), __( 'Replaced with the post/page excerpt (or auto-generated if it does not exist)', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'excerpt_only', __( 'Excerpt only', 'wordpress-seo' ), __( 'Replaced with the post/page excerpt (without auto-generation)', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'tag', __( 'Tag', 'wordpress-seo' ), __( 'Replaced with the current tag/tags', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'category', __( 'Category', 'wordpress-seo' ), __( 'Replaced with the post categories (comma separated)', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'primary_category', __( 'Primary category', 'wordpress-seo' ), __( 'Replaced with the primary category of the post/page', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'category_description', __( 'Category description', 'wordpress-seo' ), __( 'Replaced with the category description', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'tag_description', __( 'Tag description', 'wordpress-seo' ), __( 'Replaced with the tag description', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'term_description', __( 'Term description', 'wordpress-seo' ), __( 'Replaced with the term description', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'term_title', __( 'Term title', 'wordpress-seo' ), __( 'Replaced with the term name', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'searchphrase', __( 'Search phrase', 'wordpress-seo' ), __( 'Replaced with the current search phrase', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'term_hierarchy', __( 'Term hierarchy', 'wordpress-seo' ), __( 'Replaced with the term ancestors hierarchy', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'sep', __( 'Separator', 'wordpress-seo' ), $separator_description ), new WPSEO_Replacement_Variable( 'currentdate', __( 'Current date', 'wordpress-seo' ), __( 'Replaced with the current date', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'currentyear', __( 'Current year', 'wordpress-seo' ), __( 'Replaced with the current year', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'currentmonth', __( 'Current month', 'wordpress-seo' ), __( 'Replaced with the current month', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'currentday', __( 'Current day', 'wordpress-seo' ), __( 'Replaced with the current day', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'post_year', __( 'Post year', 'wordpress-seo' ), __( 'Replaced with the year the post was published', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'post_month', __( 'Post month', 'wordpress-seo' ), __( 'Replaced with the month the post was published', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'post_day', __( 'Post day', 'wordpress-seo' ), __( 'Replaced with the day the post was published', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'author_first_name', __( 'Author first name', 'wordpress-seo' ), __( 'Replaced with the first name of the author', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'author_last_name', __( 'Author last name', 'wordpress-seo' ), __( 'Replaced with the last name of the author', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'permalink', __( 'Permalink', 'wordpress-seo' ), __( 'Replaced with the permalink', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'post_content', __( 'Post Content', 'wordpress-seo' ), __( 'Replaced with the post content', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'category_title', __( 'Category Title', 'wordpress-seo' ), __( 'Current or first category title', 'wordpress-seo' ) ), ]; foreach ( $replacement_variables as $replacement_variable ) { self::register_help_text( 'basic', $replacement_variable ); } } /** * Set/translate the help texts for the WPSEO standard advanced variables. */ private static function set_advanced_help_texts() { $replacement_variables = [ new WPSEO_Replacement_Variable( 'pt_single', __( 'Post type (singular)', 'wordpress-seo' ), __( 'Replaced with the content type single label', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'pt_plural', __( 'Post type (plural)', 'wordpress-seo' ), __( 'Replaced with the content type plural label', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'modified', __( 'Modified', 'wordpress-seo' ), __( 'Replaced with the post/page modified time', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'id', __( 'ID', 'wordpress-seo' ), __( 'Replaced with the post/page ID', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'name', __( 'Name', 'wordpress-seo' ), __( 'Replaced with the post/page author\'s \'nicename\'', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'user_description', __( 'User description', 'wordpress-seo' ), __( 'Replaced with the post/page author\'s \'Biographical Info\'', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'page', __( 'Page number', 'wordpress-seo' ), __( 'Replaced with the current page number with context (i.e. page 2 of 4)', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'pagetotal', __( 'Pagetotal', 'wordpress-seo' ), __( 'Replaced with the current page total', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'pagenumber', __( 'Pagenumber', 'wordpress-seo' ), __( 'Replaced with the current page number', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'caption', __( 'Caption', 'wordpress-seo' ), __( 'Attachment caption', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'focuskw', __( 'Focus keyword', 'wordpress-seo' ), __( 'Replaced with the posts focus keyphrase', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'term404', __( 'Term404', 'wordpress-seo' ), __( 'Replaced with the slug which caused the 404', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'cf_', ' ' . __( '(custom field)', 'wordpress-seo' ), __( 'Replaced with a posts custom field value', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'ct_', ' ' . __( '(custom taxonomy)', 'wordpress-seo' ), __( 'Replaced with a posts custom taxonomies, comma separated.', 'wordpress-seo' ) ), new WPSEO_Replacement_Variable( 'ct_desc_', ' ' . __( 'description (custom taxonomy)', 'wordpress-seo' ), __( 'Replaced with a custom taxonomies description', 'wordpress-seo' ) ), ]; foreach ( $replacement_variables as $replacement_variable ) { self::register_help_text( 'advanced', $replacement_variable ); } } /* *********************** GENERAL HELPER METHODS ************************** */ /** * Remove the '%%' delimiters from a variable string. * * @param string $string Variable string to be cleaned. * * @return string */ private static function remove_var_delimiter( $string ) { return trim( $string, '%' ); } /** * Add the '%%' delimiters to a variable string. * * @param string $string Variable string to be delimited. * * @return string */ private static function add_var_delimiter( $string ) { return '%%' . $string . '%%'; } /** * Retrieve a post's terms, comma delimited. * * @param int $id ID of the post to get the terms for. * @param string $taxonomy The taxonomy to get the terms for this post from. * @param bool $return_single If true, return the first term. * * @return string Either a single term or a comma delimited string of terms. */ public function get_terms( $id, $taxonomy, $return_single = false ) { $output = ''; // If we're on a specific tag, category or taxonomy page, use that. if ( ! empty( $this->args->term_id ) ) { $output = $this->args->name; } elseif ( ! empty( $id ) && ! empty( $taxonomy ) ) { $terms = get_the_terms( $id, $taxonomy ); if ( is_array( $terms ) && $terms !== [] ) { foreach ( $terms as $term ) { if ( $return_single ) { $output = $term->name; break; } else { $output .= $term->name . ', '; } } $output = rtrim( trim( $output ), ',' ); } } unset( $terms, $term ); /** * Allows filtering of the terms list used to replace %%category%%, %%tag%% * and %%ct_%% variables. * * @api string $output Comma-delimited string containing the terms. * @api string $taxonomy The taxonomy of the terms. */ return apply_filters( 'wpseo_terms', $output, $taxonomy ); } /** * Gets a taxonomy term hierarchy including the term to get the parents for. * * @return string */ private function get_term_hierarchy() { if ( ! is_taxonomy_hierarchical( $this->args->taxonomy ) ) { return ''; } $separator = ' ' . $this->retrieve_sep() . ' '; $args = [ 'format' => 'name', 'separator' => $separator, 'link' => false, 'inclusive' => true, ]; return rtrim( get_term_parents_list( $this->args->term_id, $this->args->taxonomy, $args ), $separator ); } /** * Retrieves the term ancestors hierarchy. * * @return string|null The term ancestors hierarchy. */ private function retrieve_term_hierarchy() { $replacement = null; if ( ! empty( $this->args->term_id ) && ! empty( $this->args->taxonomy ) ) { $hierarchy = $this->get_term_hierarchy(); if ( $hierarchy !== '' ) { $replacement = esc_html( $hierarchy ); } } return $replacement; } }