/htdocs/wp-includes/post-template.php
PHP | 1566 lines | 960 code | 143 blank | 463 comment | 152 complexity | 293d12b3df771749655298f8b2c9e862 MD5 | raw file
- <?php
- /**
- * WordPress Post Template Functions.
- *
- * Gets content for the current post in the loop.
- *
- * @package WordPress
- * @subpackage Template
- */
- /**
- * Display the ID of the current item in the WordPress Loop.
- *
- * @since 0.71
- */
- function the_ID() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
- echo get_the_ID();
- }
- /**
- * Retrieve the ID of the current item in the WordPress Loop.
- *
- * @since 2.1.0
- *
- * @return int|false The ID of the current item in the WordPress Loop. False if $post is not set.
- */
- function get_the_ID() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
- $post = get_post();
- return ! empty( $post ) ? $post->ID : false;
- }
- /**
- * Display or retrieve the current post title with optional markup.
- *
- * @since 0.71
- *
- * @param string $before Optional. Markup to prepend to the title. Default empty.
- * @param string $after Optional. Markup to append to the title. Default empty.
- * @param bool $echo Optional. Whether to echo or return the title. Default true for echo.
- * @return void|string Void if `$echo` argument is true, current post title if `$echo` is false.
- */
- function the_title( $before = '', $after = '', $echo = true ) {
- $title = get_the_title();
- if ( strlen( $title ) == 0 ) {
- return;
- }
- $title = $before . $title . $after;
- if ( $echo ) {
- echo $title;
- } else {
- return $title;
- }
- }
- /**
- * Sanitize the current title when retrieving or displaying.
- *
- * Works like the_title(), except the parameters can be in a string or
- * an array. See the function for what can be override in the $args parameter.
- *
- * The title before it is displayed will have the tags stripped and esc_attr()
- * before it is passed to the user or displayed. The default as with the_title(),
- * is to display the title.
- *
- * @since 2.3.0
- *
- * @param string|array $args {
- * Title attribute arguments. Optional.
- *
- * @type string $before Markup to prepend to the title. Default empty.
- * @type string $after Markup to append to the title. Default empty.
- * @type bool $echo Whether to echo or return the title. Default true for echo.
- * @type WP_Post $post Current post object to retrieve the title for.
- * }
- * @return void|string Void if 'echo' argument is true, the title attribute if 'echo' is false.
- */
- function the_title_attribute( $args = '' ) {
- $defaults = array(
- 'before' => '',
- 'after' => '',
- 'echo' => true,
- 'post' => get_post(),
- );
- $parsed_args = wp_parse_args( $args, $defaults );
- $title = get_the_title( $parsed_args['post'] );
- if ( strlen( $title ) == 0 ) {
- return;
- }
- $title = $parsed_args['before'] . $title . $parsed_args['after'];
- $title = esc_attr( strip_tags( $title ) );
- if ( $parsed_args['echo'] ) {
- echo $title;
- } else {
- return $title;
- }
- }
- /**
- * Retrieve post title.
- *
- * If the post is protected and the visitor is not an admin, then "Protected"
- * will be displayed before the post title. If the post is private, then
- * "Private" will be located before the post title.
- *
- * @since 0.71
- *
- * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
- * @return string
- */
- function get_the_title( $post = 0 ) {
- $post = get_post( $post );
- $title = isset( $post->post_title ) ? $post->post_title : '';
- $id = isset( $post->ID ) ? $post->ID : 0;
- if ( ! is_admin() ) {
- if ( ! empty( $post->post_password ) ) {
- /* translators: %s: Protected post title. */
- $prepend = __( 'Protected: %s' );
- /**
- * Filters the text prepended to the post title for protected posts.
- *
- * The filter is only applied on the front end.
- *
- * @since 2.8.0
- *
- * @param string $prepend Text displayed before the post title.
- * Default 'Protected: %s'.
- * @param WP_Post $post Current post object.
- */
- $protected_title_format = apply_filters( 'protected_title_format', $prepend, $post );
- $title = sprintf( $protected_title_format, $title );
- } elseif ( isset( $post->post_status ) && 'private' == $post->post_status ) {
- /* translators: %s: Private post title. */
- $prepend = __( 'Private: %s' );
- /**
- * Filters the text prepended to the post title of private posts.
- *
- * The filter is only applied on the front end.
- *
- * @since 2.8.0
- *
- * @param string $prepend Text displayed before the post title.
- * Default 'Private: %s'.
- * @param WP_Post $post Current post object.
- */
- $private_title_format = apply_filters( 'private_title_format', $prepend, $post );
- $title = sprintf( $private_title_format, $title );
- }
- }
- /**
- * Filters the post title.
- *
- * @since 0.71
- *
- * @param string $title The post title.
- * @param int $id The post ID.
- */
- return apply_filters( 'the_title', $title, $id );
- }
- /**
- * Display the Post Global Unique Identifier (guid).
- *
- * The guid will appear to be a link, but should not be used as a link to the
- * post. The reason you should not use it as a link, is because of moving the
- * blog across domains.
- *
- * URL is escaped to make it XML-safe.
- *
- * @since 1.5.0
- *
- * @param int|WP_Post $post Optional. Post ID or post object. Default is global $post.
- */
- function the_guid( $post = 0 ) {
- $post = get_post( $post );
- $guid = isset( $post->guid ) ? get_the_guid( $post ) : '';
- $id = isset( $post->ID ) ? $post->ID : 0;
- /**
- * Filters the escaped Global Unique Identifier (guid) of the post.
- *
- * @since 4.2.0
- *
- * @see get_the_guid()
- *
- * @param string $guid Escaped Global Unique Identifier (guid) of the post.
- * @param int $id The post ID.
- */
- echo apply_filters( 'the_guid', $guid, $id );
- }
- /**
- * Retrieve the Post Global Unique Identifier (guid).
- *
- * The guid will appear to be a link, but should not be used as an link to the
- * post. The reason you should not use it as a link, is because of moving the
- * blog across domains.
- *
- * @since 1.5.0
- *
- * @param int|WP_Post $post Optional. Post ID or post object. Default is global $post.
- * @return string
- */
- function get_the_guid( $post = 0 ) {
- $post = get_post( $post );
- $guid = isset( $post->guid ) ? $post->guid : '';
- $id = isset( $post->ID ) ? $post->ID : 0;
- /**
- * Filters the Global Unique Identifier (guid) of the post.
- *
- * @since 1.5.0
- *
- * @param string $guid Global Unique Identifier (guid) of the post.
- * @param int $id The post ID.
- */
- return apply_filters( 'get_the_guid', $guid, $id );
- }
- /**
- * Display the post content.
- *
- * @since 0.71
- *
- * @param string $more_link_text Optional. Content for when there is more text.
- * @param bool $strip_teaser Optional. Strip teaser content before the more text. Default is false.
- */
- function the_content( $more_link_text = null, $strip_teaser = false ) {
- $content = get_the_content( $more_link_text, $strip_teaser );
- /**
- * Filters the post content.
- *
- * @since 0.71
- *
- * @param string $content Content of the current post.
- */
- $content = apply_filters( 'the_content', $content );
- $content = str_replace( ']]>', ']]>', $content );
- echo $content;
- }
- /**
- * Retrieve the post content.
- *
- * @since 0.71
- * @since 5.2.0 Added the `$post` parameter.
- *
- * @global int $page Page number of a single post/page.
- * @global int $more Boolean indicator for whether single post/page is being viewed.
- * @global bool $preview Whether post/page is in preview mode.
- * @global array $pages Array of all pages in post/page. Each array element contains
- * part of the content separated by the `<!--nextpage-->` tag.
- * @global int $multipage Boolean indicator for whether multiple pages are in play.
- *
- * @param string $more_link_text Optional. Content for when there is more text.
- * @param bool $strip_teaser Optional. Strip teaser content before the more text. Default is false.
- * @param WP_Post|object|int $post Optional. WP_Post instance or Post ID/object. Default is null.
- * @return string
- */
- function get_the_content( $more_link_text = null, $strip_teaser = false, $post = null ) {
- global $page, $more, $preview, $pages, $multipage;
- $_post = get_post( $post );
- if ( ! ( $_post instanceof WP_Post ) ) {
- return '';
- }
- if ( null === $post ) {
- $elements = compact( 'page', 'more', 'preview', 'pages', 'multipage' );
- } else {
- $elements = generate_postdata( $_post );
- }
- if ( null === $more_link_text ) {
- $more_link_text = sprintf(
- '<span aria-label="%1$s">%2$s</span>',
- sprintf(
- /* translators: %s: Post title. */
- __( 'Continue reading %s' ),
- the_title_attribute(
- array(
- 'echo' => false,
- 'post' => $_post,
- )
- )
- ),
- __( '(more…)' )
- );
- }
- $output = '';
- $has_teaser = false;
- // If post password required and it doesn't match the cookie.
- if ( post_password_required( $_post ) ) {
- return get_the_password_form( $_post );
- }
- // If the requested page doesn't exist.
- if ( $elements['page'] > count( $elements['pages'] ) ) {
- // Give them the highest numbered page that DOES exist.
- $elements['page'] = count( $elements['pages'] );
- }
- $page_no = $elements['page'];
- $content = $elements['pages'][ $page_no - 1 ];
- if ( preg_match( '/<!--more(.*?)?-->/', $content, $matches ) ) {
- if ( has_block( 'more', $content ) ) {
- // Remove the core/more block delimiters. They will be left over after $content is split up.
- $content = preg_replace( '/<!-- \/?wp:more(.*?) -->/', '', $content );
- }
- $content = explode( $matches[0], $content, 2 );
- if ( ! empty( $matches[1] ) && ! empty( $more_link_text ) ) {
- $more_link_text = strip_tags( wp_kses_no_null( trim( $matches[1] ) ) );
- }
- $has_teaser = true;
- } else {
- $content = array( $content );
- }
- if ( false !== strpos( $_post->post_content, '<!--noteaser-->' ) && ( ! $elements['multipage'] || 1 == $elements['page'] ) ) {
- $strip_teaser = true;
- }
- $teaser = $content[0];
- if ( $elements['more'] && $strip_teaser && $has_teaser ) {
- $teaser = '';
- }
- $output .= $teaser;
- if ( count( $content ) > 1 ) {
- if ( $elements['more'] ) {
- $output .= '<span id="more-' . $_post->ID . '"></span>' . $content[1];
- } else {
- if ( ! empty( $more_link_text ) ) {
- /**
- * Filters the Read More link text.
- *
- * @since 2.8.0
- *
- * @param string $more_link_element Read More link element.
- * @param string $more_link_text Read More text.
- */
- $output .= apply_filters( 'the_content_more_link', ' <a href="' . get_permalink( $_post ) . "#more-{$_post->ID}\" class=\"more-link\">$more_link_text</a>", $more_link_text );
- }
- $output = force_balance_tags( $output );
- }
- }
- return $output;
- }
- /**
- * Display the post excerpt.
- *
- * @since 0.71
- */
- function the_excerpt() {
- /**
- * Filters the displayed post excerpt.
- *
- * @since 0.71
- *
- * @see get_the_excerpt()
- *
- * @param string $post_excerpt The post excerpt.
- */
- echo apply_filters( 'the_excerpt', get_the_excerpt() );
- }
- /**
- * Retrieves the post excerpt.
- *
- * @since 0.71
- * @since 4.5.0 Introduced the `$post` parameter.
- *
- * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
- * @return string Post excerpt.
- */
- function get_the_excerpt( $post = null ) {
- if ( is_bool( $post ) ) {
- _deprecated_argument( __FUNCTION__, '2.3.0' );
- }
- $post = get_post( $post );
- if ( empty( $post ) ) {
- return '';
- }
- if ( post_password_required( $post ) ) {
- return __( 'There is no excerpt because this is a protected post.' );
- }
- /**
- * Filters the retrieved post excerpt.
- *
- * @since 1.2.0
- * @since 4.5.0 Introduced the `$post` parameter.
- *
- * @param string $post_excerpt The post excerpt.
- * @param WP_Post $post Post object.
- */
- return apply_filters( 'get_the_excerpt', $post->post_excerpt, $post );
- }
- /**
- * Determines whether the post has a custom excerpt.
- *
- * For more information on this and similar theme functions, check out
- * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
- * Conditional Tags} article in the Theme Developer Handbook.
- *
- * @since 2.3.0
- *
- * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
- * @return bool True if the post has a custom excerpt, false otherwise.
- */
- function has_excerpt( $post = 0 ) {
- $post = get_post( $post );
- return ( ! empty( $post->post_excerpt ) );
- }
- /**
- * Displays the classes for the post container element.
- *
- * @since 2.7.0
- *
- * @param string|array $class One or more classes to add to the class list.
- * @param int|WP_Post $post_id Optional. Post ID or post object. Defaults to the global `$post`.
- */
- function post_class( $class = '', $post_id = null ) {
- // Separates classes with a single space, collates classes for post DIV.
- echo 'class="' . join( ' ', get_post_class( $class, $post_id ) ) . '"';
- }
- /**
- * Retrieves an array of the class names for the post container element.
- *
- * The class names are many. If the post is a sticky, then the 'sticky'
- * class name. The class 'hentry' is always added to each post. If the post has a
- * post thumbnail, 'has-post-thumbnail' is added as a class. For each taxonomy that
- * the post belongs to, a class will be added of the format '{$taxonomy}-{$slug}' -
- * eg 'category-foo' or 'my_custom_taxonomy-bar'.
- *
- * The 'post_tag' taxonomy is a special
- * case; the class has the 'tag-' prefix instead of 'post_tag-'. All class names are
- * passed through the filter, {@see 'post_class'}, with the list of class names, followed by
- * $class parameter value, with the post ID as the last parameter.
- *
- * @since 2.7.0
- * @since 4.2.0 Custom taxonomy class names were added.
- *
- * @param string|string[] $class Space-separated string or array of class names to add to the class list.
- * @param int|WP_Post $post_id Optional. Post ID or post object.
- * @return string[] Array of class names.
- */
- function get_post_class( $class = '', $post_id = null ) {
- $post = get_post( $post_id );
- $classes = array();
- if ( $class ) {
- if ( ! is_array( $class ) ) {
- $class = preg_split( '#\s+#', $class );
- }
- $classes = array_map( 'esc_attr', $class );
- } else {
- // Ensure that we always coerce class to being an array.
- $class = array();
- }
- if ( ! $post ) {
- return $classes;
- }
- $classes[] = 'post-' . $post->ID;
- if ( ! is_admin() ) {
- $classes[] = $post->post_type;
- }
- $classes[] = 'type-' . $post->post_type;
- $classes[] = 'status-' . $post->post_status;
- // Post Format.
- if ( post_type_supports( $post->post_type, 'post-formats' ) ) {
- $post_format = get_post_format( $post->ID );
- if ( $post_format && ! is_wp_error( $post_format ) ) {
- $classes[] = 'format-' . sanitize_html_class( $post_format );
- } else {
- $classes[] = 'format-standard';
- }
- }
- $post_password_required = post_password_required( $post->ID );
- // Post requires password.
- if ( $post_password_required ) {
- $classes[] = 'post-password-required';
- } elseif ( ! empty( $post->post_password ) ) {
- $classes[] = 'post-password-protected';
- }
- // Post thumbnails.
- if ( current_theme_supports( 'post-thumbnails' ) && has_post_thumbnail( $post->ID ) && ! is_attachment( $post ) && ! $post_password_required ) {
- $classes[] = 'has-post-thumbnail';
- }
- // Sticky for Sticky Posts.
- if ( is_sticky( $post->ID ) ) {
- if ( is_home() && ! is_paged() ) {
- $classes[] = 'sticky';
- } elseif ( is_admin() ) {
- $classes[] = 'status-sticky';
- }
- }
- // hentry for hAtom compliance.
- $classes[] = 'hentry';
- // All public taxonomies.
- $taxonomies = get_taxonomies( array( 'public' => true ) );
- foreach ( (array) $taxonomies as $taxonomy ) {
- if ( is_object_in_taxonomy( $post->post_type, $taxonomy ) ) {
- foreach ( (array) get_the_terms( $post->ID, $taxonomy ) as $term ) {
- if ( empty( $term->slug ) ) {
- continue;
- }
- $term_class = sanitize_html_class( $term->slug, $term->term_id );
- if ( is_numeric( $term_class ) || ! trim( $term_class, '-' ) ) {
- $term_class = $term->term_id;
- }
- // 'post_tag' uses the 'tag' prefix for backward compatibility.
- if ( 'post_tag' == $taxonomy ) {
- $classes[] = 'tag-' . $term_class;
- } else {
- $classes[] = sanitize_html_class( $taxonomy . '-' . $term_class, $taxonomy . '-' . $term->term_id );
- }
- }
- }
- }
- $classes = array_map( 'esc_attr', $classes );
- /**
- * Filters the list of CSS class names for the current post.
- *
- * @since 2.7.0
- *
- * @param string[] $classes An array of post class names.
- * @param string[] $class An array of additional class names added to the post.
- * @param int $post_id The post ID.
- */
- $classes = apply_filters( 'post_class', $classes, $class, $post->ID );
- return array_unique( $classes );
- }
- /**
- * Displays the class names for the body element.
- *
- * @since 2.8.0
- *
- * @param string|string[] $class Space-separated string or array of class names to add to the class list.
- */
- function body_class( $class = '' ) {
- // Separates class names with a single space, collates class names for body element.
- echo 'class="' . join( ' ', get_body_class( $class ) ) . '"';
- }
- /**
- * Retrieves an array of the class names for the body element.
- *
- * @since 2.8.0
- *
- * @global WP_Query $wp_query WordPress Query object.
- *
- * @param string|string[] $class Space-separated string or array of class names to add to the class list.
- * @return string[] Array of class names.
- */
- function get_body_class( $class = '' ) {
- global $wp_query;
- $classes = array();
- if ( is_rtl() ) {
- $classes[] = 'rtl';
- }
- if ( is_front_page() ) {
- $classes[] = 'home';
- }
- if ( is_home() ) {
- $classes[] = 'blog';
- }
- if ( is_privacy_policy() ) {
- $classes[] = 'privacy-policy';
- }
- if ( is_archive() ) {
- $classes[] = 'archive';
- }
- if ( is_date() ) {
- $classes[] = 'date';
- }
- if ( is_search() ) {
- $classes[] = 'search';
- $classes[] = $wp_query->posts ? 'search-results' : 'search-no-results';
- }
- if ( is_paged() ) {
- $classes[] = 'paged';
- }
- if ( is_attachment() ) {
- $classes[] = 'attachment';
- }
- if ( is_404() ) {
- $classes[] = 'error404';
- }
- if ( is_singular() ) {
- $post_id = $wp_query->get_queried_object_id();
- $post = $wp_query->get_queried_object();
- $post_type = $post->post_type;
- if ( is_page_template() ) {
- $classes[] = "{$post_type}-template";
- $template_slug = get_page_template_slug( $post_id );
- $template_parts = explode( '/', $template_slug );
- foreach ( $template_parts as $part ) {
- $classes[] = "{$post_type}-template-" . sanitize_html_class( str_replace( array( '.', '/' ), '-', basename( $part, '.php' ) ) );
- }
- $classes[] = "{$post_type}-template-" . sanitize_html_class( str_replace( '.', '-', $template_slug ) );
- } else {
- $classes[] = "{$post_type}-template-default";
- }
- if ( is_single() ) {
- $classes[] = 'single';
- if ( isset( $post->post_type ) ) {
- $classes[] = 'single-' . sanitize_html_class( $post->post_type, $post_id );
- $classes[] = 'postid-' . $post_id;
- // Post Format.
- if ( post_type_supports( $post->post_type, 'post-formats' ) ) {
- $post_format = get_post_format( $post->ID );
- if ( $post_format && ! is_wp_error( $post_format ) ) {
- $classes[] = 'single-format-' . sanitize_html_class( $post_format );
- } else {
- $classes[] = 'single-format-standard';
- }
- }
- }
- }
- if ( is_attachment() ) {
- $mime_type = get_post_mime_type( $post_id );
- $mime_prefix = array( 'application/', 'image/', 'text/', 'audio/', 'video/', 'music/' );
- $classes[] = 'attachmentid-' . $post_id;
- $classes[] = 'attachment-' . str_replace( $mime_prefix, '', $mime_type );
- } elseif ( is_page() ) {
- $classes[] = 'page';
- $page_id = $wp_query->get_queried_object_id();
- $post = get_post( $page_id );
- $classes[] = 'page-id-' . $page_id;
- if ( get_pages(
- array(
- 'parent' => $page_id,
- 'number' => 1,
- )
- ) ) {
- $classes[] = 'page-parent';
- }
- if ( $post->post_parent ) {
- $classes[] = 'page-child';
- $classes[] = 'parent-pageid-' . $post->post_parent;
- }
- }
- } elseif ( is_archive() ) {
- if ( is_post_type_archive() ) {
- $classes[] = 'post-type-archive';
- $post_type = get_query_var( 'post_type' );
- if ( is_array( $post_type ) ) {
- $post_type = reset( $post_type );
- }
- $classes[] = 'post-type-archive-' . sanitize_html_class( $post_type );
- } elseif ( is_author() ) {
- $author = $wp_query->get_queried_object();
- $classes[] = 'author';
- if ( isset( $author->user_nicename ) ) {
- $classes[] = 'author-' . sanitize_html_class( $author->user_nicename, $author->ID );
- $classes[] = 'author-' . $author->ID;
- }
- } elseif ( is_category() ) {
- $cat = $wp_query->get_queried_object();
- $classes[] = 'category';
- if ( isset( $cat->term_id ) ) {
- $cat_class = sanitize_html_class( $cat->slug, $cat->term_id );
- if ( is_numeric( $cat_class ) || ! trim( $cat_class, '-' ) ) {
- $cat_class = $cat->term_id;
- }
- $classes[] = 'category-' . $cat_class;
- $classes[] = 'category-' . $cat->term_id;
- }
- } elseif ( is_tag() ) {
- $tag = $wp_query->get_queried_object();
- $classes[] = 'tag';
- if ( isset( $tag->term_id ) ) {
- $tag_class = sanitize_html_class( $tag->slug, $tag->term_id );
- if ( is_numeric( $tag_class ) || ! trim( $tag_class, '-' ) ) {
- $tag_class = $tag->term_id;
- }
- $classes[] = 'tag-' . $tag_class;
- $classes[] = 'tag-' . $tag->term_id;
- }
- } elseif ( is_tax() ) {
- $term = $wp_query->get_queried_object();
- if ( isset( $term->term_id ) ) {
- $term_class = sanitize_html_class( $term->slug, $term->term_id );
- if ( is_numeric( $term_class ) || ! trim( $term_class, '-' ) ) {
- $term_class = $term->term_id;
- }
- $classes[] = 'tax-' . sanitize_html_class( $term->taxonomy );
- $classes[] = 'term-' . $term_class;
- $classes[] = 'term-' . $term->term_id;
- }
- }
- }
- if ( is_user_logged_in() ) {
- $classes[] = 'logged-in';
- }
- if ( is_admin_bar_showing() ) {
- $classes[] = 'admin-bar';
- $classes[] = 'no-customize-support';
- }
- if ( current_theme_supports( 'custom-background' )
- && ( get_background_color() !== get_theme_support( 'custom-background', 'default-color' ) || get_background_image() ) ) {
- $classes[] = 'custom-background';
- }
- if ( has_custom_logo() ) {
- $classes[] = 'wp-custom-logo';
- }
- if ( current_theme_supports( 'responsive-embeds' ) ) {
- $classes[] = 'wp-embed-responsive';
- }
- $page = $wp_query->get( 'page' );
- if ( ! $page || $page < 2 ) {
- $page = $wp_query->get( 'paged' );
- }
- if ( $page && $page > 1 && ! is_404() ) {
- $classes[] = 'paged-' . $page;
- if ( is_single() ) {
- $classes[] = 'single-paged-' . $page;
- } elseif ( is_page() ) {
- $classes[] = 'page-paged-' . $page;
- } elseif ( is_category() ) {
- $classes[] = 'category-paged-' . $page;
- } elseif ( is_tag() ) {
- $classes[] = 'tag-paged-' . $page;
- } elseif ( is_date() ) {
- $classes[] = 'date-paged-' . $page;
- } elseif ( is_author() ) {
- $classes[] = 'author-paged-' . $page;
- } elseif ( is_search() ) {
- $classes[] = 'search-paged-' . $page;
- } elseif ( is_post_type_archive() ) {
- $classes[] = 'post-type-paged-' . $page;
- }
- }
- if ( ! empty( $class ) ) {
- if ( ! is_array( $class ) ) {
- $class = preg_split( '#\s+#', $class );
- }
- $classes = array_merge( $classes, $class );
- } else {
- // Ensure that we always coerce class to being an array.
- $class = array();
- }
- $classes = array_map( 'esc_attr', $classes );
- /**
- * Filters the list of CSS body class names for the current post or page.
- *
- * @since 2.8.0
- *
- * @param string[] $classes An array of body class names.
- * @param string[] $class An array of additional class names added to the body.
- */
- $classes = apply_filters( 'body_class', $classes, $class );
- return array_unique( $classes );
- }
- /**
- * Whether post requires password and correct password has been provided.
- *
- * @since 2.7.0
- *
- * @param int|WP_Post|null $post An optional post. Global $post used if not provided.
- * @return bool false if a password is not required or the correct password cookie is present, true otherwise.
- */
- function post_password_required( $post = null ) {
- $post = get_post( $post );
- if ( empty( $post->post_password ) ) {
- /** This filter is documented in wp-includes/post-template.php */
- return apply_filters( 'post_password_required', false, $post );
- }
- if ( ! isset( $_COOKIE[ 'wp-postpass_' . COOKIEHASH ] ) ) {
- /** This filter is documented in wp-includes/post-template.php */
- return apply_filters( 'post_password_required', true, $post );
- }
- require_once ABSPATH . WPINC . '/class-phpass.php';
- $hasher = new PasswordHash( 8, true );
- $hash = wp_unslash( $_COOKIE[ 'wp-postpass_' . COOKIEHASH ] );
- if ( 0 !== strpos( $hash, '$P$B' ) ) {
- $required = true;
- } else {
- $required = ! $hasher->CheckPassword( $post->post_password, $hash );
- }
- /**
- * Filters whether a post requires the user to supply a password.
- *
- * @since 4.7.0
- *
- * @param bool $required Whether the user needs to supply a password. True if password has not been
- * provided or is incorrect, false if password has been supplied or is not required.
- * @param WP_Post $post Post data.
- */
- return apply_filters( 'post_password_required', $required, $post );
- }
- //
- // Page Template Functions for usage in Themes.
- //
- /**
- * The formatted output of a list of pages.
- *
- * Displays page links for paginated posts (i.e. including the `<!--nextpage-->`
- * Quicktag one or more times). This tag must be within The Loop.
- *
- * @since 1.2.0
- * @since 5.1.0 Added the `aria_current` argument.
- *
- * @global int $page
- * @global int $numpages
- * @global int $multipage
- * @global int $more
- *
- * @param string|array $args {
- * Optional. Array or string of default arguments.
- *
- * @type string $before HTML or text to prepend to each link. Default is `<p> Pages:`.
- * @type string $after HTML or text to append to each link. Default is `</p>`.
- * @type string $link_before HTML or text to prepend to each link, inside the `<a>` tag.
- * Also prepended to the current item, which is not linked. Default empty.
- * @type string $link_after HTML or text to append to each Pages link inside the `<a>` tag.
- * Also appended to the current item, which is not linked. Default empty.
- * @type string $aria_current The value for the aria-current attribute. Possible values are 'page',
- * 'step', 'location', 'date', 'time', 'true', 'false'. Default is 'page'.
- * @type string $next_or_number Indicates whether page numbers should be used. Valid values are number
- * and next. Default is 'number'.
- * @type string $separator Text between pagination links. Default is ' '.
- * @type string $nextpagelink Link text for the next page link, if available. Default is 'Next Page'.
- * @type string $previouspagelink Link text for the previous page link, if available. Default is 'Previous Page'.
- * @type string $pagelink Format string for page numbers. The % in the parameter string will be
- * replaced with the page number, so 'Page %' generates "Page 1", "Page 2", etc.
- * Defaults to '%', just the page number.
- * @type int|bool $echo Whether to echo or not. Accepts 1|true or 0|false. Default 1|true.
- * }
- * @return string Formatted output in HTML.
- */
- function wp_link_pages( $args = '' ) {
- global $page, $numpages, $multipage, $more;
- $defaults = array(
- 'before' => '<p class="post-nav-links">' . __( 'Pages:' ),
- 'after' => '</p>',
- 'link_before' => '',
- 'link_after' => '',
- 'aria_current' => 'page',
- 'next_or_number' => 'number',
- 'separator' => ' ',
- 'nextpagelink' => __( 'Next page' ),
- 'previouspagelink' => __( 'Previous page' ),
- 'pagelink' => '%',
- 'echo' => 1,
- );
- $parsed_args = wp_parse_args( $args, $defaults );
- /**
- * Filters the arguments used in retrieving page links for paginated posts.
- *
- * @since 3.0.0
- *
- * @param array $parsed_args An array of arguments for page links for paginated posts.
- */
- $parsed_args = apply_filters( 'wp_link_pages_args', $parsed_args );
- $output = '';
- if ( $multipage ) {
- if ( 'number' == $parsed_args['next_or_number'] ) {
- $output .= $parsed_args['before'];
- for ( $i = 1; $i <= $numpages; $i++ ) {
- $link = $parsed_args['link_before'] . str_replace( '%', $i, $parsed_args['pagelink'] ) . $parsed_args['link_after'];
- if ( $i != $page || ! $more && 1 == $page ) {
- $link = _wp_link_page( $i ) . $link . '</a>';
- } elseif ( $i === $page ) {
- $link = '<span class="post-page-numbers current" aria-current="' . esc_attr( $parsed_args['aria_current'] ) . '">' . $link . '</span>';
- }
- /**
- * Filters the HTML output of individual page number links.
- *
- * @since 3.6.0
- *
- * @param string $link The page number HTML output.
- * @param int $i Page number for paginated posts' page links.
- */
- $link = apply_filters( 'wp_link_pages_link', $link, $i );
- // Use the custom links separator beginning with the second link.
- $output .= ( 1 === $i ) ? ' ' : $parsed_args['separator'];
- $output .= $link;
- }
- $output .= $parsed_args['after'];
- } elseif ( $more ) {
- $output .= $parsed_args['before'];
- $prev = $page - 1;
- if ( $prev > 0 ) {
- $link = _wp_link_page( $prev ) . $parsed_args['link_before'] . $parsed_args['previouspagelink'] . $parsed_args['link_after'] . '</a>';
- /** This filter is documented in wp-includes/post-template.php */
- $output .= apply_filters( 'wp_link_pages_link', $link, $prev );
- }
- $next = $page + 1;
- if ( $next <= $numpages ) {
- if ( $prev ) {
- $output .= $parsed_args['separator'];
- }
- $link = _wp_link_page( $next ) . $parsed_args['link_before'] . $parsed_args['nextpagelink'] . $parsed_args['link_after'] . '</a>';
- /** This filter is documented in wp-includes/post-template.php */
- $output .= apply_filters( 'wp_link_pages_link', $link, $next );
- }
- $output .= $parsed_args['after'];
- }
- }
- /**
- * Filters the HTML output of page links for paginated posts.
- *
- * @since 3.6.0
- *
- * @param string $output HTML output of paginated posts' page links.
- * @param array $args An array of arguments.
- */
- $html = apply_filters( 'wp_link_pages', $output, $args );
- if ( $parsed_args['echo'] ) {
- echo $html;
- }
- return $html;
- }
- /**
- * Helper function for wp_link_pages().
- *
- * @since 3.1.0
- * @access private
- *
- * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
- *
- * @param int $i Page number.
- * @return string Link.
- */
- function _wp_link_page( $i ) {
- global $wp_rewrite;
- $post = get_post();
- $query_args = array();
- if ( 1 == $i ) {
- $url = get_permalink();
- } else {
- if ( '' == get_option( 'permalink_structure' ) || in_array( $post->post_status, array( 'draft', 'pending' ) ) ) {
- $url = add_query_arg( 'page', $i, get_permalink() );
- } elseif ( 'page' == get_option( 'show_on_front' ) && get_option( 'page_on_front' ) == $post->ID ) {
- $url = trailingslashit( get_permalink() ) . user_trailingslashit( "$wp_rewrite->pagination_base/" . $i, 'single_paged' );
- } else {
- $url = trailingslashit( get_permalink() ) . user_trailingslashit( $i, 'single_paged' );
- }
- }
- if ( is_preview() ) {
- if ( ( 'draft' !== $post->post_status ) && isset( $_GET['preview_id'], $_GET['preview_nonce'] ) ) {
- $query_args['preview_id'] = wp_unslash( $_GET['preview_id'] );
- $query_args['preview_nonce'] = wp_unslash( $_GET['preview_nonce'] );
- }
- $url = get_preview_post_link( $post, $query_args, $url );
- }
- return '<a href="' . esc_url( $url ) . '" class="post-page-numbers">';
- }
- //
- // Post-meta: Custom per-post fields.
- //
- /**
- * Retrieve post custom meta data field.
- *
- * @since 1.5.0
- *
- * @param string $key Meta data key name.
- * @return array|string|false Array of values, or single value if only one element exists.
- * False if the key does not exist.
- */
- function post_custom( $key = '' ) {
- $custom = get_post_custom();
- if ( ! isset( $custom[ $key ] ) ) {
- return false;
- } elseif ( 1 == count( $custom[ $key ] ) ) {
- return $custom[ $key ][0];
- } else {
- return $custom[ $key ];
- }
- }
- /**
- * Display a list of post custom fields.
- *
- * @since 1.2.0
- *
- * @internal This will probably change at some point...
- */
- function the_meta() {
- $keys = get_post_custom_keys();
- if ( $keys ) {
- $li_html = '';
- foreach ( (array) $keys as $key ) {
- $keyt = trim( $key );
- if ( is_protected_meta( $keyt, 'post' ) ) {
- continue;
- }
- $values = array_map( 'trim', get_post_custom_values( $key ) );
- $value = implode( ', ', $values );
- $html = sprintf(
- "<li><span class='post-meta-key'>%s</span> %s</li>\n",
- /* translators: %s: Post custom field name. */
- sprintf( _x( '%s:', 'Post custom field name' ), $key ),
- $value
- );
- /**
- * Filters the HTML output of the li element in the post custom fields list.
- *
- * @since 2.2.0
- *
- * @param string $html The HTML output for the li element.
- * @param string $key Meta key.
- * @param string $value Meta value.
- */
- $li_html .= apply_filters( 'the_meta_key', $html, $key, $value );
- }
- if ( $li_html ) {
- echo "<ul class='post-meta'>\n{$li_html}</ul>\n";
- }
- }
- }
- //
- // Pages.
- //
- /**
- * Retrieve or display a list of pages as a dropdown (select list).
- *
- * @since 2.1.0
- * @since 4.2.0 The `$value_field` argument was added.
- * @since 4.3.0 The `$class` argument was added.
- *
- * @see get_pages()
- *
- * @param array|string $args {
- * Optional. Array or string of arguments to generate a page dropdown. See `get_pages()` for additional arguments.
- *
- * @type int $depth Maximum depth. Default 0.
- * @type int $child_of Page ID to retrieve child pages of. Default 0.
- * @type int|string $selected Value of the option that should be selected. Default 0.
- * @type bool|int $echo Whether to echo or return the generated markup. Accepts 0, 1,
- * or their bool equivalents. Default 1.
- * @type string $name Value for the 'name' attribute of the select element.
- * Default 'page_id'.
- * @type string $id Value for the 'id' attribute of the select element.
- * @type string $class Value for the 'class' attribute of the select element. Default: none.
- * Defaults to the value of `$name`.
- * @type string $show_option_none Text to display for showing no pages. Default empty (does not display).
- * @type string $show_option_no_change Text to display for "no change" option. Default empty (does not display).
- * @type string $option_none_value Value to use when no page is selected. Default empty.
- * @type string $value_field Post field used to populate the 'value' attribute of the option
- * elements. Accepts any valid post field. Default 'ID'.
- * }
- * @return string HTML dropdown list of pages.
- */
- function wp_dropdown_pages( $args = '' ) {
- $defaults = array(
- 'depth' => 0,
- 'child_of' => 0,
- 'selected' => 0,
- 'echo' => 1,
- 'name' => 'page_id',
- 'id' => '',
- 'class' => '',
- 'show_option_none' => '',
- 'show_option_no_change' => '',
- 'option_none_value' => '',
- 'value_field' => 'ID',
- );
- $parsed_args = wp_parse_args( $args, $defaults );
- $pages = get_pages( $parsed_args );
- $output = '';
- // Back-compat with old system where both id and name were based on $name argument.
- if ( empty( $parsed_args['id'] ) ) {
- $parsed_args['id'] = $parsed_args['name'];
- }
- if ( ! empty( $pages ) ) {
- $class = '';
- if ( ! empty( $parsed_args['class'] ) ) {
- $class = " class='" . esc_attr( $parsed_args['class'] ) . "'";
- }
- $output = "<select name='" . esc_attr( $parsed_args['name'] ) . "'" . $class . " id='" . esc_attr( $parsed_args['id'] ) . "'>\n";
- if ( $parsed_args['show_option_no_change'] ) {
- $output .= "\t<option value=\"-1\">" . $parsed_args['show_option_no_change'] . "</option>\n";
- }
- if ( $parsed_args['show_option_none'] ) {
- $output .= "\t<option value=\"" . esc_attr( $parsed_args['option_none_value'] ) . '">' . $parsed_args['show_option_none'] . "</option>\n";
- }
- $output .= walk_page_dropdown_tree( $pages, $parsed_args['depth'], $parsed_args );
- $output .= "</select>\n";
- }
- /**
- * Filters the HTML output of a list of pages as a drop down.
- *
- * @since 2.1.0
- * @since 4.4.0 `$parsed_args` and `$pages` added as arguments.
- *
- * @param string $output HTML output for drop down list of pages.
- * @param array $parsed_args The parsed arguments array.
- * @param WP_Post[] $pages Array of the page objects.
- */
- $html = apply_filters( 'wp_dropdown_pages', $output, $parsed_args, $pages );
- if ( $parsed_args['echo'] ) {
- echo $html;
- }
- return $html;
- }
- /**
- * Retrieve or display a list of pages (or hierarchical post type items) in list (li) format.
- *
- * @since 1.5.0
- * @since 4.7.0 Added the `item_spacing` argument.
- *
- * @see get_pages()
- *
- * @global WP_Query $wp_query WordPress Query object.
- *
- * @param array|string $args {
- * Optional. Array or string of arguments to generate a list of pages. See `get_pages()` for additional arguments.
- *
- * @type int $child_of Display only the sub-pages of a single page by ID. Default 0 (all pages).
- * @type string $authors Comma-separated list of author IDs. Default empty (all authors).
- * @type string $date_format PHP date format to use for the listed pages. Relies on the 'show_date' parameter.
- * Default is the value of 'date_format' option.
- * @type int $depth Number of levels in the hierarchy of pages to include in the generated list.
- * Accepts -1 (any depth), 0 (all pages), 1 (top-level pages only), and n (pages to
- * the given n depth). Default 0.
- * @type bool $echo Whether or not to echo the list of pages. Default true.
- * @type string $exclude Comma-separated list of page IDs to exclude. Default empty.
- * @type array $include Comma-separated list of page IDs to include. Default empty.
- * @type string $link_after Text or HTML to follow the page link label. Default null.
- * @type string $link_before Text or HTML to precede the page link label. Default null.
- * @type string $post_type Post type to query for. Default 'page'.
- * @type string|array $post_status Comma-separated list or array of post statuses to include. Default 'publish'.
- * @type string $show_date Whether to display the page publish or modified date for each page. Accepts
- * 'modified' or any other value. An empty value hides the date. Default empty.
- * @type string $sort_column Comma-separated list of column names to sort the pages by. Accepts 'post_author',
- * 'post_date', 'post_title', 'post_name', 'post_modified', 'post_modified_gmt',
- * 'menu_order', 'post_parent', 'ID', 'rand', or 'comment_count'. Default 'post_title'.
- * @type string $title_li List heading. Passing a null or empty value will result in no heading, and the list
- * will not be wrapped with unordered list `<ul>` tags. Default 'Pages'.
- * @type string $item_spacing Whether to preserve whitespace within the menu's HTML. Accepts 'preserve' or 'discard'.
- * Default 'preserve'.
- * @type Walker $walker Walker instance to use for listing pages. Default empty (Walker_Page).
- * }
- * @return void|string Void if 'echo' argument is true, HTML list of pages if 'echo' is false.
- */
- function wp_list_pages( $args = '' ) {
- $defaults = array(
- 'depth' => 0,
- 'show_date' => '',
- 'date_format' => get_option( 'date_format' ),
- 'child_of' => 0,
- 'exclude' => '',
- 'title_li' => __( 'Pages' ),
- 'echo' => 1,
- 'authors' => '',
- 'sort_column' => 'menu_order, post_title',
- 'link_before' => '',
- 'link_after' => '',
- 'item_spacing' => 'preserve',
- 'walker' => '',
- );
- $parsed_args = wp_parse_args( $args, $defaults );
- if ( ! in_array( $parsed_args['item_spacing'], array( 'preserve', 'discard' ), true ) ) {
- // Invalid value, fall back to default.
- $parsed_args['item_spacing'] = $defaults['item_spacing'];
- }
- $output = '';
- $current_page = 0;
- // Sanitize, mostly to keep spaces out.
- $parsed_args['exclude'] = preg_replace( '/[^0-9,]/', '', $parsed_args['exclude'] );
- // Allow plugins to filter an array of excluded pages (but don't put a nullstring into the array).
- $exclude_array = ( $parsed_args['exclude'] ) ? explode( ',', $parsed_args['exclude'] ) : array();
- /**
- * Filters the array of pages to exclude from the pages list.
- *
- * @since 2.1.0
- *
- * @param string[] $exclude_array An array of page IDs to exclude.
- */
- $parsed_args['exclude'] = implode( ',', apply_filters( 'wp_list_pages_excludes', $exclude_array ) );
- $parsed_args['hierarchical'] = 0;
- // Query pages.
- $pages = get_pages( $parsed_args );
- if ( ! empty( $pages ) ) {
- if ( $parsed_args['title_li'] ) {
- $output .= '<li class="pagenav">' . $parsed_args['title_li'] . '<ul>';
- }
- global $wp_query;
- if ( is_page() || is_attachment() || $wp_query->is_posts_page ) {
- $current_page = get_queried_object_id();
- } elseif ( is_singular() ) {
- $queried_object = get_queried_object();
- if ( is_post_type_hierarchical( $queried_object->post_type ) ) {
- $current_page = $queried_object->ID;
- }
- }
- $output .= walk_page_tree( $pages, $parsed_args['depth'], $current_page, $parsed_args );
- if ( $parsed_args['title_li'] ) {
- $output .= '</ul></li>';
- }
- }
- /**
- * Filters the HTML output of the pages to list.
- *
- * @since 1.5.1
- * @since 4.4.0 `$pages` added as arguments.
- *
- * @see wp_list_pages()
- *
- * @param string $output HTML output of the pages list.
- * @param array $parsed_args An array of page-listing arguments.
- * @param WP_Post[] $pages Array of the page objects.
- */
- $html = apply_filters( 'wp_list_pages', $output, $parsed_args, $pages );
- if ( $parsed_args['echo'] ) {
- echo $html;
- } else {
- return $html;
- }
- }
- /**
- * Displays or retrieves a list of pages with an optional home link.
- *
- * The arguments are listed below and part of the arguments are for wp_list_pages() function.
- * Check that function for more info on those arguments.
- *
- * @since 2.7.0
- * @since 4.4.0 Added `menu_id`, `container`, `before`, `after`, and `walker` arguments.
- * @since 4.7.0 Added the `item_spacing` argument.
- *
- * @param array|string $args {
- * Optional. Array or string of arguments to generate a page menu. See `wp_list_pages()` for additional arguments.
- *
- * @type string $sort_column How to sort the list of pages. Accepts post column names.
- * Default 'menu_order, post_title'.
- * @type string $menu_id ID for the div containing the page list. Default is empty string.
- * @type string $menu_class Class to use for the element containing the page list. Default 'menu'.
- * @type string $container Element to use for the element containing the page list. Default 'div'.
- * @type bool $echo Whether to echo the list or return it. Accepts true (echo) or false (return).
- * Default true.
- * @type int|bool|string $show_home Whether to display the link to the home page. Can just enter the text
- * you'd like shown for the home link. 1|true defaults to 'Home'.
- * @type string $link_before The HTML or text to prepend to $show_home text. Default empty.
- * @type string $link_after The HTML or text to append to $show_home text. Default empty.
- * @type string $before The HTML or text to prepend to the menu. Default is '<ul>'.
- * @type string $after The HTML or text to append to the menu. Default is '</ul>'.
- * @type string $item_spacing Whether to preserve whitespace within the menu's HTML. Accepts 'preserve'
- * or 'discard'. Default 'discard'.
- * @type Walker $walker Walker instance to use for listing pages. Default empty (Walker_Page).
- * }
- * @return void|string Void if 'echo' argument is true, HTML menu if 'echo' is false.
- */
- function wp_page_menu( $args = array() ) {
- $defaults = array(
- 'sort_column' => 'menu_order, post_title',
- 'menu_id' => '',
- 'menu_class' => 'menu',
- 'container' => 'div',
- 'echo' => true,
- 'link_before' => '',
- 'link_after' => '',
- 'before' => '<ul>',
- 'after' => '</ul>',
- 'item_spacing' => 'discard',
- 'walker' => '',
- );
- $args = wp_parse_args( $args, $defaults );
- if ( ! in_array( $args['item_spacing'], array( 'preserve', 'discard' ) ) ) {
- // Invalid value, fall back to default.
- $args['item_spacing'] = $defaults['item_spacing'];
- }
- if ( 'preserve' === $args['item_spacing'] ) {
- $t = "\t";
- $n = "\n";
- } else {
- $t = '';
- $n = '';
- }
- /**
- * Filters the arguments used to generate a page-based menu.
- *
- * @since 2.7.0
- *
- * @see wp_page_menu()
- *
- * @param array $args An array of page menu arguments.
- */
- $args = apply_filters( 'wp_page_menu_args', $args );
- $menu = '';
- $list_args = $args;
- // Show Home in the menu.
- if ( ! empty( $args['show_home'] ) ) {
- if ( true === $args['show_home'] || '1' === $args['show_home'] || 1 === $args['show_home'] ) {
- $text = __( 'Home' );
- } else {
- $text = $args['show_home'];
- }
- $class = '';
- if ( is_front_page() && ! is_paged() ) {
- $class = 'class="current_page_item"';
- }
- $menu .= '<li ' . $class . '><a href="' . home_url( '/' ) . '">' . $args['link_before'] . $text . $args['link_after'] . '</a></li>';
- // If the front page is a page, add it to the exclude list.
- if ( get_option( 'show_on_front' ) == 'page' ) {
- if ( ! empty( $list_args['exclude'] ) ) {
- $list_args['exclude'] .= ',';
- } else {
- $list_args['exclude'] = '';
- }
- $list_args['exclude'] .= get_option( 'page_on_front' );
- }
- }
- $list_args['echo'] = false;
- $list_args['title_li'] = '';
- $menu .= wp_list_pages( $list_args );
- $container = sanitize_text_field( $args['container'] );
- // Fallback in case `wp_nav_menu()` was called without a container.
- if ( empty( $container ) ) {
- $container = 'div';
- }
- if ( $menu ) {
- // wp_nav_menu() doesn't set before and after.
- if ( isset( $args['fallback_cb'] ) &&
- 'wp_page_menu' === $args['fallback_cb'] &&
- 'ul' !== $container ) {
- $args['before'] = "<ul>{$n}";
- $args['after'] = '</ul>';
- }
- $menu = $args['before'] . $menu . $args['after'];
- }
- $attrs = '';
- if ( ! empty( $args['menu_id'] ) ) {
- $attrs .= ' id="' . esc_attr( $args['menu_id'] ) . '"';
- }
- if ( ! empty( $args['menu_class'] ) ) {
- $attrs .= ' class="' . esc_attr( $args['menu_class'] ) . '"';
- }
- $menu = "<{$container}{$attrs}>" . $menu . "</{$container}>{$n}";
- /**
- * Filters the HTML output of a page-based menu.
- *
- * @since 2.7.0
- *
- * @see wp_page_menu()
- *
- * @param string $menu The HTML output.
- * @param array $args An array of arguments.
- */
- $menu = apply_filters( 'wp_page_menu', $menu, $args );
- if ( $args['echo'] ) {
- echo $menu;
- } else {
- return $menu;
- }
- }
- //
- // Page helpers.
- //
- /**
- * Retrieve HTML list content for page list.
- *
- * @uses Walker_Page to create HTML list content.
- * @since 2.1.0
- *
- * @param array $pages
- * @param int $depth
- * @param int $current_page
- * @param array $r
- * @return string
- */
- function walk_page_tree( $pages, $depth, $current_page, $r ) {
- if ( empty( $r['walker'] ) ) {
- $walker = new Walker_Page;
- } else {
- $walker = $r['walker'];
- }
- foreach ( (array) $pages as $page ) {
- if ( $page->post_parent ) {
- $r['pages_with_children'][ $page->post_parent ] = true;
- }
- }
- return $walker->walk( $pages, $depth, $r, $current_page );
- }
- /**
- * Retrieve HTML dropdown (select) content for page list.
- *
- * @since 2.1.0
- * @since 5.3.0 Formalized the existing `...$args` parameter by adding it
- * to the function signature.
- *
- * @uses Walker_PageDropdown to create HTML dropdown content.
- * @see Walker_PageDropdown::walk() for parameters and return description.
- *
- * @return string
- */
- function walk_page_dropdown_tree( ...$args ) {
- if ( empty( $args[2]['walker'] ) ) { // The user's options are the third parameter.
- $walker = new Walker_PageDropdown;
- } else {
- $walker = $args[2]['walker'];
- }
- return $walker->walk( ...$args );
- }
- //
- // Attachments.
- //
- /**
- * Display an attachment page link using an image or icon.
- *
- * @since 2.0.0
- *
- * @param