/**
* Taxonomy API: Core category-specific template tags
*
* @package WordPress
* @subpackage Template
* @since 1.2.0
*/
/**
* Retrieves category link URL.
*
* @since 1.0.0
*
* @see get_term_link()
*
* @param int|object $category Category ID or object.
* @return string Link on success, empty string if category does not exist.
*/
function get_category_link( $category ) {
if ( ! is_object( $category ) ) {
$category = (int) $category;
}
$category = get_term_link( $category );
if ( is_wp_error( $category ) ) {
return '';
}
return $category;
}
/**
* Retrieves category parents with separator.
*
* @since 1.2.0
* @since 4.8.0 The `$visited` parameter was deprecated and renamed to `$deprecated`.
*
* @param int $category_id Category ID.
* @param bool $link Optional. Whether to format with link. Default false.
* @param string $separator Optional. How to separate categories. Default '/'.
* @param bool $nicename Optional. Whether to use nice name for display. Default false.
* @param array $deprecated Not used.
* @return string|WP_Error A list of category parents on success, WP_Error on failure.
*/
function get_category_parents( $category_id, $link = false, $separator = '/', $nicename = false, $deprecated = array() ) {
if ( ! empty( $deprecated ) ) {
_deprecated_argument( __FUNCTION__, '4.8.0' );
}
$format = $nicename ? 'slug' : 'name';
$args = array(
'separator' => $separator,
'link' => $link,
'format' => $format,
);
return get_term_parents_list( $category_id, 'category', $args );
}
/**
* Retrieves post categories.
*
* This tag may be used outside The Loop by passing a post ID as the parameter.
*
* Note: This function only returns results from the default "category" taxonomy.
* For custom taxonomies use get_the_terms().
*
* @since 0.71
*
* @param int $post_id Optional. The post ID. Defaults to current post ID.
* @return WP_Term[] Array of WP_Term objects, one for each category assigned to the post.
*/
function get_the_category( $post_id = false ) {
$categories = get_the_terms( $post_id, 'category' );
if ( ! $categories || is_wp_error( $categories ) ) {
$categories = array();
}
$categories = array_values( $categories );
foreach ( array_keys( $categories ) as $key ) {
_make_cat_compat( $categories[ $key ] );
}
/**
* Filters the array of categories to return for a post.
*
* @since 3.1.0
* @since 4.4.0 Added the `$post_id` parameter.
*
* @param WP_Term[] $categories An array of categories to return for the post.
* @param int|false $post_id The post ID.
*/
return apply_filters( 'get_the_categories', $categories, $post_id );
}
/**
* Retrieves category name based on category ID.
*
* @since 0.71
*
* @param int $cat_id Category ID.
* @return string|WP_Error Category name on success, WP_Error on failure.
*/
function get_the_category_by_ID( $cat_id ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
$cat_id = (int) $cat_id;
$category = get_term( $cat_id );
if ( is_wp_error( $category ) ) {
return $category;
}
return ( $category ) ? $category->name : '';
}
/**
* Retrieves category list for a post in either HTML list or custom format.
*
* Generally used for quick, delimited (e.g. comma-separated) lists of categories,
* as part of a post entry meta.
*
* For a more powerful, list-based function, see wp_list_categories().
*
* @since 1.5.1
*
* @see wp_list_categories()
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param string $separator Optional. Separator between the categories. By default, the links are placed
* in an unordered list. An empty string will result in the default behavior.
* @param string $parents Optional. How to display the parents. Accepts 'multiple', 'single', or empty.
* Default empty string.
* @param int $post_id Optional. ID of the post to retrieve categories for. Defaults to the current post.
* @return string Category list for a post.
*/
function get_the_category_list( $separator = '', $parents = '', $post_id = false ) {
global $wp_rewrite;
if ( ! is_object_in_taxonomy( get_post_type( $post_id ), 'category' ) ) {
/** This filter is documented in wp-includes/category-template.php */
return apply_filters( 'the_category', '', $separator, $parents );
}
/**
* Filters the categories before building the category list.
*
* @since 4.4.0
*
* @param WP_Term[] $categories An array of the post's categories.
* @param int|false $post_id ID of the post to retrieve categories for.
* When `false`, defaults to the current post in the loop.
*/
$categories = apply_filters( 'the_category_list', get_the_category( $post_id ), $post_id );
if ( empty( $categories ) ) {
/** This filter is documented in wp-includes/category-template.php */
return apply_filters( 'the_category', __( 'Uncategorized' ), $separator, $parents );
}
$rel = ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() ) ? 'rel="category tag"' : 'rel="category"';
$thelist = '';
if ( '' === $separator ) {
$thelist .= '';
foreach ( $categories as $category ) {
$thelist .= "\n\t";
switch ( strtolower( $parents ) ) {
case 'multiple':
if ( $category->parent ) {
$thelist .= get_category_parents( $category->parent, true, $separator );
}
$thelist .= '' . $category->name . ' ';
break;
case 'single':
$thelist .= '';
if ( $category->parent ) {
$thelist .= get_category_parents( $category->parent, false, $separator );
}
$thelist .= $category->name . ' ';
break;
case '':
default:
$thelist .= '' . $category->name . ' ';
}
}
$thelist .= ' ';
} else {
$i = 0;
foreach ( $categories as $category ) {
if ( 0 < $i ) {
$thelist .= $separator;
}
switch ( strtolower( $parents ) ) {
case 'multiple':
if ( $category->parent ) {
$thelist .= get_category_parents( $category->parent, true, $separator );
}
$thelist .= '' . $category->name . ' ';
break;
case 'single':
$thelist .= '';
if ( $category->parent ) {
$thelist .= get_category_parents( $category->parent, false, $separator );
}
$thelist .= "$category->name ";
break;
case '':
default:
$thelist .= '' . $category->name . ' ';
}
++$i;
}
}
/**
* Filters the category or list of categories.
*
* @since 1.2.0
*
* @param string $thelist List of categories for the current post.
* @param string $separator Separator used between the categories.
* @param string $parents How to display the category parents. Accepts 'multiple',
* 'single', or empty.
*/
return apply_filters( 'the_category', $thelist, $separator, $parents );
}
/**
* Checks if the current post is within any of the given categories.
*
* The given categories are checked against the post's categories' term_ids, names and slugs.
* Categories given as integers will only be checked against the post's categories' term_ids.
*
* Prior to v2.5 of WordPress, category names were not supported.
* Prior to v2.7, category slugs were not supported.
* Prior to v2.7, only one category could be compared: in_category( $single_category ).
* Prior to v2.7, this function could only be used in the WordPress Loop.
* As of 2.7, the function can be used anywhere if it is provided a post ID or post object.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 1.2.0
* @since 2.7.0 The `$post` parameter was added.
*
* @param int|string|int[]|string[] $category Category ID, name, slug, or array of such
* to check against.
* @param int|WP_Post $post Optional. Post to check. Defaults to the current post.
* @return bool True if the current post is in any of the given categories.
*/
function in_category( $category, $post = null ) {
if ( empty( $category ) ) {
return false;
}
return has_category( $category, $post );
}
/**
* Displays category list for a post in either HTML list or custom format.
*
* @since 0.71
*
* @param string $separator Optional. Separator between the categories. By default, the links are placed
* in an unordered list. An empty string will result in the default behavior.
* @param string $parents Optional. How to display the parents. Accepts 'multiple', 'single', or empty.
* Default empty string.
* @param int $post_id Optional. ID of the post to retrieve categories for. Defaults to the current post.
*/
function the_category( $separator = '', $parents = '', $post_id = false ) {
echo get_the_category_list( $separator, $parents, $post_id );
}
/**
* Retrieves category description.
*
* @since 1.0.0
*
* @param int $category Optional. Category ID. Defaults to the current category ID.
* @return string Category description, if available.
*/
function category_description( $category = 0 ) {
return term_description( $category );
}
/**
* Displays or retrieves the HTML dropdown list of categories.
*
* The 'hierarchical' argument, which is disabled by default, will override the
* depth argument, unless it is true. When the argument is false, it will
* display all of the categories. When it is enabled it will use the value in
* the 'depth' argument.
*
* @since 2.1.0
* @since 4.2.0 Introduced the `value_field` argument.
* @since 4.6.0 Introduced the `required` argument.
* @since 6.1.0 Introduced the `aria_describedby` argument.
*
* @param array|string $args {
* Optional. Array or string of arguments to generate a categories drop-down element. See WP_Term_Query::__construct()
* for information on additional accepted arguments.
*
* @type string $show_option_all Text to display for showing all categories. Default empty.
* @type string $show_option_none Text to display for showing no categories. Default empty.
* @type string $option_none_value Value to use when no category is selected. Default empty.
* @type string $orderby Which column to use for ordering categories. See get_terms() for a list
* of accepted values. Default 'id' (term_id).
* @type bool $pad_counts See get_terms() for an argument description. Default false.
* @type bool|int $show_count Whether to include post counts. Accepts 0, 1, or their bool equivalents.
* Default 0.
* @type bool|int $echo Whether to echo or return the generated markup. Accepts 0, 1, or their
* bool equivalents. Default 1.
* @type bool|int $hierarchical Whether to traverse the taxonomy hierarchy. Accepts 0, 1, or their bool
* equivalents. Default 0.
* @type int $depth Maximum depth. Default 0.
* @type int $tab_index Tab index for the select element. Default 0 (no tabindex).
* @type string $name Value for the 'name' attribute of the select element. Default 'cat'.
* @type string $id Value for the 'id' attribute of the select element. Defaults to the value
* of `$name`.
* @type string $class Value for the 'class' attribute of the select element. Default 'postform'.
* @type int|string $selected Value of the option that should be selected. Default 0.
* @type string $value_field Term field that should be used to populate the 'value' attribute
* of the option elements. Accepts any valid term field: 'term_id', 'name',
* 'slug', 'term_group', 'term_taxonomy_id', 'taxonomy', 'description',
* 'parent', 'count'. Default 'term_id'.
* @type string|array $taxonomy Name of the taxonomy or taxonomies to retrieve. Default 'category'.
* @type bool $hide_if_empty True to skip generating markup if no categories are found.
* Default false (create select element even if no categories are found).
* @type bool $required Whether the `` element should have the HTML5 'required' attribute.
* Default false.
* @type Walker $walker Walker object to use to build the output. Default empty which results in a
* Walker_CategoryDropdown instance being used.
* @type string $aria_describedby The 'id' of an element that contains descriptive text for the select.
* Default empty string.
* }
* @return string HTML dropdown list of categories.
*/
function wp_dropdown_categories( $args = '' ) {
$defaults = array(
'show_option_all' => '',
'show_option_none' => '',
'orderby' => 'id',
'order' => 'ASC',
'show_count' => 0,
'hide_empty' => 1,
'child_of' => 0,
'exclude' => '',
'echo' => 1,
'selected' => 0,
'hierarchical' => 0,
'name' => 'cat',
'id' => '',
'class' => 'postform',
'depth' => 0,
'tab_index' => 0,
'taxonomy' => 'category',
'hide_if_empty' => false,
'option_none_value' => -1,
'value_field' => 'term_id',
'required' => false,
'aria_describedby' => '',
);
$defaults['selected'] = ( is_category() ) ? get_query_var( 'cat' ) : 0;
// Back compat.
if ( isset( $args['type'] ) && 'link' === $args['type'] ) {
_deprecated_argument(
__FUNCTION__,
'3.0.0',
sprintf(
/* translators: 1: "type => link", 2: "taxonomy => link_category" */
__( '%1$s is deprecated. Use %2$s instead.' ),
'type => link',
'taxonomy => link_category'
)
);
$args['taxonomy'] = 'link_category';
}
// Parse incoming $args into an array and merge it with $defaults.
$parsed_args = wp_parse_args( $args, $defaults );
$option_none_value = $parsed_args['option_none_value'];
if ( ! isset( $parsed_args['pad_counts'] ) && $parsed_args['show_count'] && $parsed_args['hierarchical'] ) {
$parsed_args['pad_counts'] = true;
}
$tab_index = $parsed_args['tab_index'];
$tab_index_attribute = '';
if ( (int) $tab_index > 0 ) {
$tab_index_attribute = " tabindex=\"$tab_index\"";
}
// Avoid clashes with the 'name' param of get_terms().
$get_terms_args = $parsed_args;
unset( $get_terms_args['name'] );
$categories = get_terms( $get_terms_args );
$name = esc_attr( $parsed_args['name'] );
$class = esc_attr( $parsed_args['class'] );
$id = $parsed_args['id'] ? esc_attr( $parsed_args['id'] ) : $name;
$required = $parsed_args['required'] ? 'required' : '';
$aria_describedby_attribute = $parsed_args['aria_describedby'] ? ' aria-describedby="' . esc_attr( $parsed_args['aria_describedby'] ) . '"' : '';
if ( ! $parsed_args['hide_if_empty'] || ! empty( $categories ) ) {
$output = "\n";
} else {
$output = '';
}
if ( empty( $categories ) && ! $parsed_args['hide_if_empty'] && ! empty( $parsed_args['show_option_none'] ) ) {
/**
* Filters a taxonomy drop-down display element.
*
* A variety of taxonomy drop-down display elements can be modified
* just prior to display via this filter. Filterable arguments include
* 'show_option_none', 'show_option_all', and various forms of the
* term name.
*
* @since 1.2.0
*
* @see wp_dropdown_categories()
*
* @param string $element Category name.
* @param WP_Term|null $category The category object, or null if there's no corresponding category.
*/
$show_option_none = apply_filters( 'list_cats', $parsed_args['show_option_none'], null );
$output .= "\t$show_option_none \n";
}
if ( ! empty( $categories ) ) {
if ( $parsed_args['show_option_all'] ) {
/** This filter is documented in wp-includes/category-template.php */
$show_option_all = apply_filters( 'list_cats', $parsed_args['show_option_all'], null );
$selected = ( '0' === (string) $parsed_args['selected'] ) ? " selected='selected'" : '';
$output .= "\t$show_option_all \n";
}
if ( $parsed_args['show_option_none'] ) {
/** This filter is documented in wp-includes/category-template.php */
$show_option_none = apply_filters( 'list_cats', $parsed_args['show_option_none'], null );
$selected = selected( $option_none_value, $parsed_args['selected'], false );
$output .= "\t$show_option_none \n";
}
if ( $parsed_args['hierarchical'] ) {
$depth = $parsed_args['depth']; // Walk the full depth.
} else {
$depth = -1; // Flat.
}
$output .= walk_category_dropdown_tree( $categories, $depth, $parsed_args );
}
if ( ! $parsed_args['hide_if_empty'] || ! empty( $categories ) ) {
$output .= " \n";
}
/**
* Filters the taxonomy drop-down output.
*
* @since 2.1.0
*
* @param string $output HTML output.
* @param array $parsed_args Arguments used to build the drop-down.
*/
$output = apply_filters( 'wp_dropdown_cats', $output, $parsed_args );
if ( $parsed_args['echo'] ) {
echo $output;
}
return $output;
}
/**
* Displays or retrieves the HTML list of categories.
*
* @since 2.1.0
* @since 4.4.0 Introduced the `hide_title_if_empty` and `separator` arguments.
* @since 4.4.0 The `current_category` argument was modified to optionally accept an array of values.
* @since 6.1.0 Default value of the 'use_desc_for_title' argument was changed from 1 to 0.
*
* @param array|string $args {
* Array of optional arguments. See get_categories(), get_terms(), and WP_Term_Query::__construct()
* for information on additional accepted arguments.
*
* @type int|int[] $current_category ID of category, or array of IDs of categories, that should get the
* 'current-cat' class. Default 0.
* @type int $depth Category depth. Used for tab indentation. Default 0.
* @type bool|int $echo Whether to echo or return the generated markup. Accepts 0, 1, or their
* bool equivalents. Default 1.
* @type int[]|string $exclude Array or comma/space-separated string of term IDs to exclude.
* If `$hierarchical` is true, descendants of `$exclude` terms will also
* be excluded; see `$exclude_tree`. See get_terms().
* Default empty string.
* @type int[]|string $exclude_tree Array or comma/space-separated string of term IDs to exclude, along
* with their descendants. See get_terms(). Default empty string.
* @type string $feed Text to use for the feed link. Default 'Feed for all posts filed
* under [cat name]'.
* @type string $feed_image URL of an image to use for the feed link. Default empty string.
* @type string $feed_type Feed type. Used to build feed link. See get_term_feed_link().
* Default empty string (default feed).
* @type bool $hide_title_if_empty Whether to hide the `$title_li` element if there are no terms in
* the list. Default false (title will always be shown).
* @type string $separator Separator between links. Default '` element. Pass an empty string
* to disable. Default 'Categories'.
* @type bool|int $use_desc_for_title Whether to use the category description as the title attribute.
* Accepts 0, 1, or their bool equivalents. Default 0.
* @type Walker $walker Walker object to use to build the output. Default empty which results
* in a Walker_Category instance being used.
* }
* @return void|string|false Void if 'echo' argument is true, HTML list of categories if 'echo' is false.
* False if the taxonomy does not exist.
*/
function wp_list_categories( $args = '' ) {
$defaults = array(
'child_of' => 0,
'current_category' => 0,
'depth' => 0,
'echo' => 1,
'exclude' => '',
'exclude_tree' => '',
'feed' => '',
'feed_image' => '',
'feed_type' => '',
'hide_empty' => 1,
'hide_title_if_empty' => false,
'hierarchical' => true,
'order' => 'ASC',
'orderby' => 'name',
'separator' => ' ' . $parsed_args['title_li'] . '';
}
if ( empty( $categories ) ) {
if ( ! empty( $show_option_none ) ) {
if ( 'list' === $parsed_args['style'] ) {
$output .= '' . $show_option_none . ' ';
} else {
$output .= $show_option_none;
}
}
} else {
if ( ! empty( $show_option_all ) ) {
$posts_page = '';
// For taxonomies that belong only to custom post types, point to a valid archive.
$taxonomy_object = get_taxonomy( $parsed_args['taxonomy'] );
if ( ! in_array( 'post', $taxonomy_object->object_type, true ) && ! in_array( 'page', $taxonomy_object->object_type, true ) ) {
foreach ( $taxonomy_object->object_type as $object_type ) {
$_object_type = get_post_type_object( $object_type );
// Grab the first one.
if ( ! empty( $_object_type->has_archive ) ) {
$posts_page = get_post_type_archive_link( $object_type );
break;
}
}
}
// Fallback for the 'All' link is the posts page.
if ( ! $posts_page ) {
if ( 'page' === get_option( 'show_on_front' ) && get_option( 'page_for_posts' ) ) {
$posts_page = get_permalink( get_option( 'page_for_posts' ) );
} else {
$posts_page = home_url( '/' );
}
}
$posts_page = esc_url( $posts_page );
if ( 'list' === $parsed_args['style'] ) {
$output .= "$show_option_all $show_option_all ";
}
}
if ( empty( $parsed_args['current_category'] ) && ( is_category() || is_tax() || is_tag() ) ) {
$current_term_object = get_queried_object();
if ( $current_term_object && $parsed_args['taxonomy'] === $current_term_object->taxonomy ) {
$parsed_args['current_category'] = get_queried_object_id();
}
}
if ( $parsed_args['hierarchical'] ) {
$depth = $parsed_args['depth'];
} else {
$depth = -1; // Flat.
}
$output .= walk_category_tree( $categories, $depth, $parsed_args );
}
if ( $parsed_args['title_li'] && 'list' === $parsed_args['style']
&& ( ! empty( $categories ) || ! $parsed_args['hide_title_if_empty'] )
) {
$output .= ' ';
}
/**
* Filters the HTML output of a taxonomy list.
*
* @since 2.1.0
*
* @param string $output HTML output.
* @param array|string $args An array or query string of taxonomy-listing arguments. See
* wp_list_categories() for information on accepted arguments.
*/
$html = apply_filters( 'wp_list_categories', $output, $args );
if ( $parsed_args['echo'] ) {
echo $html;
} else {
return $html;
}
}
/**
* Displays a tag cloud.
*
* Outputs a list of tags in what is called a 'tag cloud', where the size of each tag
* is determined by how many times that particular tag has been assigned to posts.
*
* @since 2.3.0
* @since 2.8.0 Added the `taxonomy` argument.
* @since 4.8.0 Added the `show_count` argument.
*
* @param array|string $args {
* Optional. Array or string of arguments for displaying a tag cloud. See wp_generate_tag_cloud()
* and get_terms() for the full lists of arguments that can be passed in `$args`.
*
* @type int $number The number of tags to display. Accepts any positive integer
* or zero to return all. Default 45.
* @type string $link Whether to display term editing links or term permalinks.
* Accepts 'edit' and 'view'. Default 'view'.
* @type string $post_type The post type. Used to highlight the proper post type menu
* on the linked edit page. Defaults to the first post type
* associated with the taxonomy.
* @type bool $echo Whether or not to echo the return value. Default true.
* }
* @return void|string|string[] Void if 'echo' argument is true, or on failure. Otherwise, tag cloud
* as a string or an array, depending on 'format' argument.
*/
function wp_tag_cloud( $args = '' ) {
$defaults = array(
'smallest' => 8,
'largest' => 22,
'unit' => 'pt',
'number' => 45,
'format' => 'flat',
'separator' => "\n",
'orderby' => 'name',
'order' => 'ASC',
'exclude' => '',
'include' => '',
'link' => 'view',
'taxonomy' => 'post_tag',
'post_type' => '',
'echo' => true,
'show_count' => 0,
);
$args = wp_parse_args( $args, $defaults );
$tags = get_terms(
array_merge(
$args,
array(
'orderby' => 'count',
'order' => 'DESC',
)
)
); // Always query top tags.
if ( empty( $tags ) || is_wp_error( $tags ) ) {
return;
}
foreach ( $tags as $key => $tag ) {
if ( 'edit' === $args['link'] ) {
$link = get_edit_term_link( $tag, $tag->taxonomy, $args['post_type'] );
} else {
$link = get_term_link( $tag, $tag->taxonomy );
}
if ( is_wp_error( $link ) ) {
return;
}
$tags[ $key ]->link = $link;
$tags[ $key ]->id = $tag->term_id;
}
// Here's where those top tags get sorted according to $args.
$return = wp_generate_tag_cloud( $tags, $args );
/**
* Filters the tag cloud output.
*
* @since 2.3.0
*
* @param string|string[] $return Tag cloud as a string or an array, depending on 'format' argument.
* @param array $args An array of tag cloud arguments. See wp_tag_cloud()
* for information on accepted arguments.
*/
$return = apply_filters( 'wp_tag_cloud', $return, $args );
if ( 'array' === $args['format'] || empty( $args['echo'] ) ) {
return $return;
}
echo $return;
}
/**
* Default topic count scaling for tag links.
*
* @since 2.9.0
*
* @param int $count Number of posts with that tag.
* @return int Scaled count.
*/
function default_topic_count_scale( $count ) {
return round( log10( $count + 1 ) * 100 );
}
/**
* Generates a tag cloud (heatmap) from provided data.
*
* @todo Complete functionality.
* @since 2.3.0
* @since 4.8.0 Added the `show_count` argument.
*
* @param WP_Term[] $tags Array of WP_Term objects to generate the tag cloud for.
* @param string|array $args {
* Optional. Array or string of arguments for generating a tag cloud.
*
* @type int $smallest Smallest font size used to display tags. Paired
* with the value of `$unit`, to determine CSS text
* size unit. Default 8 (pt).
* @type int $largest Largest font size used to display tags. Paired
* with the value of `$unit`, to determine CSS text
* size unit. Default 22 (pt).
* @type string $unit CSS text size unit to use with the `$smallest`
* and `$largest` values. Accepts any valid CSS text
* size unit. Default 'pt'.
* @type int $number The number of tags to return. Accepts any
* positive integer or zero to return all.
* Default 0.
* @type string $format Format to display the tag cloud in. Accepts 'flat'
* (tags separated with spaces), 'list' (tags displayed
* in an unordered list), or 'array' (returns an array).
* Default 'flat'.
* @type string $separator HTML or text to separate the tags. Default "\n" (newline).
* @type string $orderby Value to order tags by. Accepts 'name' or 'count'.
* Default 'name'. The {@see 'tag_cloud_sort'} filter
* can also affect how tags are sorted.
* @type string $order How to order the tags. Accepts 'ASC' (ascending),
* 'DESC' (descending), or 'RAND' (random). Default 'ASC'.
* @type int|bool $filter Whether to enable filtering of the final output
* via {@see 'wp_generate_tag_cloud'}. Default 1.
* @type array $topic_count_text Nooped plural text from _n_noop() to supply to
* tag counts. Default null.
* @type callable $topic_count_text_callback Callback used to generate nooped plural text for
* tag counts based on the count. Default null.
* @type callable $topic_count_scale_callback Callback used to determine the tag count scaling
* value. Default default_topic_count_scale().
* @type bool|int $show_count Whether to display the tag counts. Default 0. Accepts
* 0, 1, or their bool equivalents.
* }
* @return string|string[] Tag cloud as a string or an array, depending on 'format' argument.
*/
function wp_generate_tag_cloud( $tags, $args = '' ) {
$defaults = array(
'smallest' => 8,
'largest' => 22,
'unit' => 'pt',
'number' => 0,
'format' => 'flat',
'separator' => "\n",
'orderby' => 'name',
'order' => 'ASC',
'topic_count_text' => null,
'topic_count_text_callback' => null,
'topic_count_scale_callback' => 'default_topic_count_scale',
'filter' => 1,
'show_count' => 0,
);
$args = wp_parse_args( $args, $defaults );
$return = ( 'array' === $args['format'] ) ? array() : '';
if ( empty( $tags ) ) {
return $return;
}
// Juggle topic counts.
if ( isset( $args['topic_count_text'] ) ) {
// First look for nooped plural support via topic_count_text.
$translate_nooped_plural = $args['topic_count_text'];
} elseif ( ! empty( $args['topic_count_text_callback'] ) ) {
// Look for the alternative callback style. Ignore the previous default.
if ( 'default_topic_count_text' === $args['topic_count_text_callback'] ) {
/* translators: %s: Number of items (tags). */
$translate_nooped_plural = _n_noop( '%s item', '%s items' );
} else {
$translate_nooped_plural = false;
}
} elseif ( isset( $args['single_text'] ) && isset( $args['multiple_text'] ) ) {
// If no callback exists, look for the old-style single_text and multiple_text arguments.
// phpcs:ignore WordPress.WP.I18n.NonSingularStringLiteralSingular,WordPress.WP.I18n.NonSingularStringLiteralPlural
$translate_nooped_plural = _n_noop( $args['single_text'], $args['multiple_text'] );
} else {
// This is the default for when no callback, plural, or argument is passed in.
/* translators: %s: Number of items (tags). */
$translate_nooped_plural = _n_noop( '%s item', '%s items' );
}
/**
* Filters how the items in a tag cloud are sorted.
*
* @since 2.8.0
*
* @param WP_Term[] $tags Ordered array of terms.
* @param array $args An array of tag cloud arguments.
*/
$tags_sorted = apply_filters( 'tag_cloud_sort', $tags, $args );
if ( empty( $tags_sorted ) ) {
return $return;
}
if ( $tags_sorted !== $tags ) {
$tags = $tags_sorted;
unset( $tags_sorted );
} else {
if ( 'RAND' === $args['order'] ) {
shuffle( $tags );
} else {
// SQL cannot save you; this is a second (potentially different) sort on a subset of data.
if ( 'name' === $args['orderby'] ) {
uasort( $tags, '_wp_object_name_sort_cb' );
} else {
uasort( $tags, '_wp_object_count_sort_cb' );
}
if ( 'DESC' === $args['order'] ) {
$tags = array_reverse( $tags, true );
}
}
}
if ( $args['number'] > 0 ) {
$tags = array_slice( $tags, 0, $args['number'] );
}
$counts = array();
$real_counts = array(); // For the alt tag.
foreach ( (array) $tags as $key => $tag ) {
$real_counts[ $key ] = $tag->count;
$counts[ $key ] = call_user_func( $args['topic_count_scale_callback'], $tag->count );
}
$min_count = min( $counts );
$spread = max( $counts ) - $min_count;
if ( $spread <= 0 ) {
$spread = 1;
}
$font_spread = $args['largest'] - $args['smallest'];
if ( $font_spread < 0 ) {
$font_spread = 1;
}
$font_step = $font_spread / $spread;
$aria_label = false;
/*
* Determine whether to output an 'aria-label' attribute with the tag name and count.
* When tags have a different font size, they visually convey an important information
* that should be available to assistive technologies too. On the other hand, sometimes
* themes set up the Tag Cloud to display all tags with the same font size (setting
* the 'smallest' and 'largest' arguments to the same value).
* In order to always serve the same content to all users, the 'aria-label' gets printed out:
* - when tags have a different size
* - when the tag count is displayed (for example when users check the checkbox in the
* Tag Cloud widget), regardless of the tags font size
*/
if ( $args['show_count'] || 0 !== $font_spread ) {
$aria_label = true;
}
// Assemble the data that will be used to generate the tag cloud markup.
$tags_data = array();
foreach ( $tags as $key => $tag ) {
$tag_id = isset( $tag->id ) ? $tag->id : $key;
$count = $counts[ $key ];
$real_count = $real_counts[ $key ];
if ( $translate_nooped_plural ) {
$formatted_count = sprintf( translate_nooped_plural( $translate_nooped_plural, $real_count ), number_format_i18n( $real_count ) );
} else {
$formatted_count = call_user_func( $args['topic_count_text_callback'], $real_count, $tag, $args );
}
$tags_data[] = array(
'id' => $tag_id,
'url' => ( '#' !== $tag->link ) ? $tag->link : '#',
'role' => ( '#' !== $tag->link ) ? '' : ' role="button"',
'name' => $tag->name,
'formatted_count' => $formatted_count,
'slug' => $tag->slug,
'real_count' => $real_count,
'class' => 'tag-cloud-link tag-link-' . $tag_id,
'font_size' => $args['smallest'] + ( $count - $min_count ) * $font_step,
'aria_label' => $aria_label ? sprintf( ' aria-label="%1$s (%2$s)"', esc_attr( $tag->name ), esc_attr( $formatted_count ) ) : '',
'show_count' => $args['show_count'] ? ' (' . $real_count . ') ' : '',
);
}
/**
* Filters the data used to generate the tag cloud.
*
* @since 4.3.0
*
* @param array[] $tags_data An array of term data arrays for terms used to generate the tag cloud.
*/
$tags_data = apply_filters( 'wp_generate_tag_cloud_data', $tags_data );
$a = array();
// Generate the output links array.
foreach ( $tags_data as $key => $tag_data ) {
$class = $tag_data['class'] . ' tag-link-position-' . ( $key + 1 );
$a[] = sprintf(
'%6$s%7$s ',
esc_url( $tag_data['url'] ),
$tag_data['role'],
esc_attr( $class ),
esc_attr( str_replace( ',', '.', $tag_data['font_size'] ) . $args['unit'] ),
$tag_data['aria_label'],
esc_html( $tag_data['name'] ),
$tag_data['show_count']
);
}
switch ( $args['format'] ) {
case 'array':
$return =& $a;
break;
case 'list':
/*
* Force role="list", as some browsers (sic: Safari 10) don't expose to assistive
* technologies the default role when the list is styled with `list-style: none`.
* Note: this is redundant but doesn't harm.
*/
$return = "\n\t";
$return .= implode( " \n\t", $a );
$return .= " \n \n";
break;
default:
$return = implode( $args['separator'], $a );
break;
}
if ( $args['filter'] ) {
/**
* Filters the generated output of a tag cloud.
*
* The filter is only evaluated if a true value is passed
* to the $filter argument in wp_generate_tag_cloud().
*
* @since 2.3.0
*
* @see wp_generate_tag_cloud()
*
* @param string[]|string $return String containing the generated HTML tag cloud output
* or an array of tag links if the 'format' argument
* equals 'array'.
* @param WP_Term[] $tags An array of terms used in the tag cloud.
* @param array $args An array of wp_generate_tag_cloud() arguments.
*/
return apply_filters( 'wp_generate_tag_cloud', $return, $tags, $args );
} else {
return $return;
}
}
/**
* Serves as a callback for comparing objects based on name.
*
* Used with `uasort()`.
*
* @since 3.1.0
* @access private
*
* @param object $a The first object to compare.
* @param object $b The second object to compare.
* @return int Negative number if `$a->name` is less than `$b->name`, zero if they are equal,
* or greater than zero if `$a->name` is greater than `$b->name`.
*/
function _wp_object_name_sort_cb( $a, $b ) {
return strnatcasecmp( $a->name, $b->name );
}
/**
* Serves as a callback for comparing objects based on count.
*
* Used with `uasort()`.
*
* @since 3.1.0
* @access private
*
* @param object $a The first object to compare.
* @param object $b The second object to compare.
* @return int Negative number if `$a->count` is less than `$b->count`, zero if they are equal,
* or greater than zero if `$a->count` is greater than `$b->count`.
*/
function _wp_object_count_sort_cb( $a, $b ) {
return ( $a->count - $b->count );
}
//
// Helper functions.
//
/**
* Retrieves HTML list content for category list.
*
* @since 2.1.0
* @since 5.3.0 Formalized the existing `...$args` parameter by adding it
* to the function signature.
*
* @uses Walker_Category to create HTML list content.
* @see Walker::walk() for parameters and return description.
*
* @param mixed ...$args Elements array, maximum hierarchical depth and optional additional arguments.
* @return string
*/
function walk_category_tree( ...$args ) {
// The user's options are the third parameter.
if ( empty( $args[2]['walker'] ) || ! ( $args[2]['walker'] instanceof Walker ) ) {
$walker = new Walker_Category();
} else {
/**
* @var Walker $walker
*/
$walker = $args[2]['walker'];
}
return $walker->walk( ...$args );
}
/**
* Retrieves HTML dropdown (select) content for category list.
*
* @since 2.1.0
* @since 5.3.0 Formalized the existing `...$args` parameter by adding it
* to the function signature.
*
* @uses Walker_CategoryDropdown to create HTML dropdown content.
* @see Walker::walk() for parameters and return description.
*
* @param mixed ...$args Elements array, maximum hierarchical depth and optional additional arguments.
* @return string
*/
function walk_category_dropdown_tree( ...$args ) {
// The user's options are the third parameter.
if ( empty( $args[2]['walker'] ) || ! ( $args[2]['walker'] instanceof Walker ) ) {
$walker = new Walker_CategoryDropdown();
} else {
/**
* @var Walker $walker
*/
$walker = $args[2]['walker'];
}
return $walker->walk( ...$args );
}
//
// Tags.
//
/**
* Retrieves the link to the tag.
*
* @since 2.3.0
*
* @see get_term_link()
*
* @param int|object $tag Tag ID or object.
* @return string Link on success, empty string if tag does not exist.
*/
function get_tag_link( $tag ) {
return get_category_link( $tag );
}
/**
* Retrieves the tags for a post.
*
* @since 2.3.0
*
* @param int|WP_Post $post Post ID or object.
* @return WP_Term[]|false|WP_Error Array of WP_Term objects on success, false if there are no terms
* or the post does not exist, WP_Error on failure.
*/
function get_the_tags( $post = 0 ) {
$terms = get_the_terms( $post, 'post_tag' );
/**
* Filters the array of tags for the given post.
*
* @since 2.3.0
*
* @see get_the_terms()
*
* @param WP_Term[]|false|WP_Error $terms Array of WP_Term objects on success, false if there are no terms
* or the post does not exist, WP_Error on failure.
*/
return apply_filters( 'get_the_tags', $terms );
}
/**
* Retrieves the tags for a post formatted as a string.
*
* @since 2.3.0
*
* @param string $before Optional. String to use before the tags. Default empty.
* @param string $sep Optional. String to use between the tags. Default empty.
* @param string $after Optional. String to use after the tags. Default empty.
* @param int $post_id Optional. Post ID. Defaults to the current post ID.
* @return string|false|WP_Error A list of tags on success, false if there are no terms,
* WP_Error on failure.
*/
function get_the_tag_list( $before = '', $sep = '', $after = '', $post_id = 0 ) {
$tag_list = get_the_term_list( $post_id, 'post_tag', $before, $sep, $after );
/**
* Filters the tags list for a given post.
*
* @since 2.3.0
*
* @param string $tag_list List of tags.
* @param string $before String to use before the tags.
* @param string $sep String to use between the tags.
* @param string $after String to use after the tags.
* @param int $post_id Post ID.
*/
return apply_filters( 'the_tags', $tag_list, $before, $sep, $after, $post_id );
}
/**
* Displays the tags for a post.
*
* @since 2.3.0
*
* @param string $before Optional. String to use before the tags. Defaults to 'Tags:'.
* @param string $sep Optional. String to use between the tags. Default ', '.
* @param string $after Optional. String to use after the tags. Default empty.
*/
function the_tags( $before = null, $sep = ', ', $after = '' ) {
if ( null === $before ) {
$before = __( 'Tags: ' );
}
$the_tags = get_the_tag_list( $before, $sep, $after );
if ( ! is_wp_error( $the_tags ) ) {
echo $the_tags;
}
}
/**
* Retrieves tag description.
*
* @since 2.8.0
*
* @param int $tag Optional. Tag ID. Defaults to the current tag ID.
* @return string Tag description, if available.
*/
function tag_description( $tag = 0 ) {
return term_description( $tag );
}
/**
* Retrieves term description.
*
* @since 2.8.0
* @since 4.9.2 The `$taxonomy` parameter was deprecated.
*
* @param int $term Optional. Term ID. Defaults to the current term ID.
* @param null $deprecated Deprecated. Not used.
* @return string Term description, if available.
*/
function term_description( $term = 0, $deprecated = null ) {
if ( ! $term && ( is_tax() || is_tag() || is_category() ) ) {
$term = get_queried_object();
if ( $term ) {
$term = $term->term_id;
}
}
$description = get_term_field( 'description', $term );
return is_wp_error( $description ) ? '' : $description;
}
/**
* Retrieves the terms of the taxonomy that are attached to the post.
*
* @since 2.5.0
*
* @param int|WP_Post $post Post ID or object.
* @param string $taxonomy Taxonomy name.
* @return WP_Term[]|false|WP_Error Array of WP_Term objects on success, false if there are no terms
* or the post does not exist, WP_Error on failure.
*/
function get_the_terms( $post, $taxonomy ) {
$post = get_post( $post );
if ( ! $post ) {
return false;
}
$terms = get_object_term_cache( $post->ID, $taxonomy );
if ( false === $terms ) {
$terms = wp_get_object_terms( $post->ID, $taxonomy );
if ( ! is_wp_error( $terms ) ) {
$term_ids = wp_list_pluck( $terms, 'term_id' );
wp_cache_add( $post->ID, $term_ids, $taxonomy . '_relationships' );
}
}
/**
* Filters the list of terms attached to the given post.
*
* @since 3.1.0
*
* @param WP_Term[]|WP_Error $terms Array of attached terms, or WP_Error on failure.
* @param int $post_id Post ID.
* @param string $taxonomy Name of the taxonomy.
*/
$terms = apply_filters( 'get_the_terms', $terms, $post->ID, $taxonomy );
if ( empty( $terms ) ) {
return false;
}
return $terms;
}
/**
* Retrieves a post's terms as a list with specified format.
*
* Terms are linked to their respective term listing pages.
*
* @since 2.5.0
*
* @param int $post_id Post ID.
* @param string $taxonomy Taxonomy name.
* @param string $before Optional. String to use before the terms. Default empty.
* @param string $sep Optional. String to use between the terms. Default empty.
* @param string $after Optional. String to use after the terms. Default empty.
* @return string|false|WP_Error A list of terms on success, false if there are no terms,
* WP_Error on failure.
*/
function get_the_term_list( $post_id, $taxonomy, $before = '', $sep = '', $after = '' ) {
$terms = get_the_terms( $post_id, $taxonomy );
if ( is_wp_error( $terms ) ) {
return $terms;
}
if ( empty( $terms ) ) {
return false;
}
$links = array();
foreach ( $terms as $term ) {
$link = get_term_link( $term, $taxonomy );
if ( is_wp_error( $link ) ) {
return $link;
}
$links[] = '' . $term->name . ' ';
}
/**
* Filters the term links for a given taxonomy.
*
* The dynamic portion of the hook name, `$taxonomy`, refers
* to the taxonomy slug.
*
* Possible hook names include:
*
* - `term_links-category`
* - `term_links-post_tag`
* - `term_links-post_format`
*
* @since 2.5.0
*
* @param string[] $links An array of term links.
*/
$term_links = apply_filters( "term_links-{$taxonomy}", $links ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
return $before . implode( $sep, $term_links ) . $after;
}
/**
* Retrieves term parents with separator.
*
* @since 4.8.0
*
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy name.
* @param string|array $args {
* Array of optional arguments.
*
* @type string $format Use term names or slugs for display. Accepts 'name' or 'slug'.
* Default 'name'.
* @type string $separator Separator for between the terms. Default '/'.
* @type bool $link Whether to format as a link. Default true.
* @type bool $inclusive Include the term to get the parents for. Default true.
* }
* @return string|WP_Error A list of term parents on success, WP_Error or empty string on failure.
*/
function get_term_parents_list( $term_id, $taxonomy, $args = array() ) {
$list = '';
$term = get_term( $term_id, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( ! $term ) {
return $list;
}
$term_id = $term->term_id;
$defaults = array(
'format' => 'name',
'separator' => '/',
'link' => true,
'inclusive' => true,
);
$args = wp_parse_args( $args, $defaults );
foreach ( array( 'link', 'inclusive' ) as $bool ) {
$args[ $bool ] = wp_validate_boolean( $args[ $bool ] );
}
$parents = get_ancestors( $term_id, $taxonomy, 'taxonomy' );
if ( $args['inclusive'] ) {
array_unshift( $parents, $term_id );
}
foreach ( array_reverse( $parents ) as $term_id ) {
$parent = get_term( $term_id, $taxonomy );
$name = ( 'slug' === $args['format'] ) ? $parent->slug : $parent->name;
if ( $args['link'] ) {
$list .= '' . $name . ' ' . $args['separator'];
} else {
$list .= $name . $args['separator'];
}
}
return $list;
}
/**
* Displays the terms for a post in a list.
*
* @since 2.5.0
*
* @param int $post_id Post ID.
* @param string $taxonomy Taxonomy name.
* @param string $before Optional. String to use before the terms. Default empty.
* @param string $sep Optional. String to use between the terms. Default ', '.
* @param string $after Optional. String to use after the terms. Default empty.
* @return void|false Void on success, false on failure.
*/
function the_terms( $post_id, $taxonomy, $before = '', $sep = ', ', $after = '' ) {
$term_list = get_the_term_list( $post_id, $taxonomy, $before, $sep, $after );
if ( is_wp_error( $term_list ) ) {
return false;
}
/**
* Filters the list of terms to display.
*
* @since 2.9.0
*
* @param string $term_list List of terms to display.
* @param string $taxonomy The taxonomy name.
* @param string $before String to use before the terms.
* @param string $sep String to use between the terms.
* @param string $after String to use after the terms.
*/
echo apply_filters( 'the_terms', $term_list, $taxonomy, $before, $sep, $after );
}
/**
* Checks if the current post has any of given category.
*
* The given categories are checked against the post's categories' term_ids, names and slugs.
* Categories given as integers will only be checked against the post's categories' term_ids.
*
* If no categories are given, determines if post has any categories.
*
* @since 3.1.0
*
* @param string|int|array $category Optional. The category name/term_id/slug,
* or an array of them to check for. Default empty.
* @param int|WP_Post $post Optional. Post to check. Defaults to the current post.
* @return bool True if the current post has any of the given categories
* (or any category, if no category specified). False otherwise.
*/
function has_category( $category = '', $post = null ) {
return has_term( $category, 'category', $post );
}
/**
* Checks if the current post has any of given tags.
*
* The given tags are checked against the post's tags' term_ids, names and slugs.
* Tags given as integers will only be checked against the post's tags' term_ids.
*
* If no tags are given, determines if post has any tags.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 2.6.0
* @since 2.7.0 Tags given as integers are only checked against
* the post's tags' term_ids, not names or slugs.
* @since 2.7.0 Can be used outside of the WordPress Loop if `$post` is provided.
*
* @param string|int|array $tag Optional. The tag name/term_id/slug,
* or an array of them to check for. Default empty.
* @param int|WP_Post $post Optional. Post to check. Defaults to the current post.
* @return bool True if the current post has any of the given tags
* (or any tag, if no tag specified). False otherwise.
*/
function has_tag( $tag = '', $post = null ) {
return has_term( $tag, 'post_tag', $post );
}
/**
* Checks if the current post has any of given terms.
*
* The given terms are checked against the post's terms' term_ids, names and slugs.
* Terms given as integers will only be checked against the post's terms' term_ids.
*
* If no terms are given, determines if post has any terms.
*
* @since 3.1.0
*
* @param string|int|array $term Optional. The term name/term_id/slug,
* or an array of them to check for. Default empty.
* @param string $taxonomy Optional. Taxonomy name. Default empty.
* @param int|WP_Post $post Optional. Post to check. Defaults to the current post.
* @return bool True if the current post has any of the given terms
* (or any term, if no term specified). False otherwise.
*/
function has_term( $term = '', $taxonomy = '', $post = null ) {
$post = get_post( $post );
if ( ! $post ) {
return false;
}
$r = is_object_in_term( $post->ID, $taxonomy, $term );
if ( is_wp_error( $r ) ) {
return false;
}
return $r;
}
/**
* Comment API: WP_Comment class
*
* @package WordPress
* @subpackage Comments
* @since 4.4.0
*/
/**
* Core class used to organize comments as instantiated objects with defined members.
*
* @since 4.4.0
*/
#[AllowDynamicProperties]
final class WP_Comment {
/**
* Comment ID.
*
* A numeric string, for compatibility reasons.
*
* @since 4.4.0
* @var string
*/
public $comment_ID;
/**
* ID of the post the comment is associated with.
*
* A numeric string, for compatibility reasons.
*
* @since 4.4.0
* @var string
*/
public $comment_post_ID = 0;
/**
* Comment author name.
*
* @since 4.4.0
* @var string
*/
public $comment_author = '';
/**
* Comment author email address.
*
* @since 4.4.0
* @var string
*/
public $comment_author_email = '';
/**
* Comment author URL.
*
* @since 4.4.0
* @var string
*/
public $comment_author_url = '';
/**
* Comment author IP address (IPv4 format).
*
* @since 4.4.0
* @var string
*/
public $comment_author_IP = '';
/**
* Comment date in YYYY-MM-DD HH:MM:SS format.
*
* @since 4.4.0
* @var string
*/
public $comment_date = '0000-00-00 00:00:00';
/**
* Comment GMT date in YYYY-MM-DD HH::MM:SS format.
*
* @since 4.4.0
* @var string
*/
public $comment_date_gmt = '0000-00-00 00:00:00';
/**
* Comment content.
*
* @since 4.4.0
* @var string
*/
public $comment_content;
/**
* Comment karma count.
*
* A numeric string, for compatibility reasons.
*
* @since 4.4.0
* @var string
*/
public $comment_karma = 0;
/**
* Comment approval status.
*
* @since 4.4.0
* @var string
*/
public $comment_approved = '1';
/**
* Comment author HTTP user agent.
*
* @since 4.4.0
* @var string
*/
public $comment_agent = '';
/**
* Comment type.
*
* @since 4.4.0
* @since 5.5.0 Default value changed to `comment`.
* @var string
*/
public $comment_type = 'comment';
/**
* Parent comment ID.
*
* A numeric string, for compatibility reasons.
*
* @since 4.4.0
* @var string
*/
public $comment_parent = 0;
/**
* Comment author ID.
*
* A numeric string, for compatibility reasons.
*
* @since 4.4.0
* @var string
*/
public $user_id = 0;
/**
* Comment children.
*
* @since 4.4.0
* @var array
*/
protected $children;
/**
* Whether children have been populated for this comment object.
*
* @since 4.4.0
* @var bool
*/
protected $populated_children = false;
/**
* Post fields.
*
* @since 4.4.0
* @var array
*/
protected $post_fields = array( 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_excerpt', 'post_status', 'comment_status', 'ping_status', 'post_name', 'to_ping', 'pinged', 'post_modified', 'post_modified_gmt', 'post_content_filtered', 'post_parent', 'guid', 'menu_order', 'post_type', 'post_mime_type', 'comment_count' );
/**
* Retrieves a WP_Comment instance.
*
* @since 4.4.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $id Comment ID.
* @return WP_Comment|false Comment object, otherwise false.
*/
public static function get_instance( $id ) {
global $wpdb;
$comment_id = (int) $id;
if ( ! $comment_id ) {
return false;
}
$_comment = wp_cache_get( $comment_id, 'comment' );
if ( ! $_comment ) {
$_comment = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment_id ) );
if ( ! $_comment ) {
return false;
}
wp_cache_add( $_comment->comment_ID, $_comment, 'comment' );
}
return new WP_Comment( $_comment );
}
/**
* Constructor.
*
* Populates properties with object vars.
*
* @since 4.4.0
*
* @param WP_Comment $comment Comment object.
*/
public function __construct( $comment ) {
foreach ( get_object_vars( $comment ) as $key => $value ) {
$this->$key = $value;
}
}
/**
* Converts object to array.
*
* @since 4.4.0
*
* @return array Object as array.
*/
public function to_array() {
return get_object_vars( $this );
}
/**
* Gets the children of a comment.
*
* @since 4.4.0
*
* @param array $args {
* Array of arguments used to pass to get_comments() and determine format.
*
* @type string $format Return value format. 'tree' for a hierarchical tree, 'flat' for a flattened array.
* Default 'tree'.
* @type string $status Comment status to limit results by. Accepts 'hold' (`comment_status=0`),
* 'approve' (`comment_status=1`), 'all', or a custom comment status.
* Default 'all'.
* @type string $hierarchical Whether to include comment descendants in the results.
* 'threaded' returns a tree, with each comment's children
* stored in a `children` property on the `WP_Comment` object.
* 'flat' returns a flat array of found comments plus their children.
* Pass `false` to leave out descendants.
* The parameter is ignored (forced to `false`) when `$fields` is 'ids' or 'counts'.
* Accepts 'threaded', 'flat', or false. Default: 'threaded'.
* @type string|array $orderby Comment status or array of statuses. To use 'meta_value'
* or 'meta_value_num', `$meta_key` must also be defined.
* To sort by a specific `$meta_query` clause, use that
* clause's array key. Accepts 'comment_agent',
* 'comment_approved', 'comment_author',
* 'comment_author_email', 'comment_author_IP',
* 'comment_author_url', 'comment_content', 'comment_date',
* 'comment_date_gmt', 'comment_ID', 'comment_karma',
* 'comment_parent', 'comment_post_ID', 'comment_type',
* 'user_id', 'comment__in', 'meta_value', 'meta_value_num',
* the value of $meta_key, and the array keys of
* `$meta_query`. Also accepts false, an empty array, or
* 'none' to disable `ORDER BY` clause.
* }
* @return WP_Comment[] Array of `WP_Comment` objects.
*/
public function get_children( $args = array() ) {
$defaults = array(
'format' => 'tree',
'status' => 'all',
'hierarchical' => 'threaded',
'orderby' => '',
);
$_args = wp_parse_args( $args, $defaults );
$_args['parent'] = $this->comment_ID;
if ( is_null( $this->children ) ) {
if ( $this->populated_children ) {
$this->children = array();
} else {
$this->children = get_comments( $_args );
}
}
if ( 'flat' === $_args['format'] ) {
$children = array();
foreach ( $this->children as $child ) {
$child_args = $_args;
$child_args['format'] = 'flat';
// get_children() resets this value automatically.
unset( $child_args['parent'] );
$children = array_merge( $children, array( $child ), $child->get_children( $child_args ) );
}
} else {
$children = $this->children;
}
return $children;
}
/**
* Adds a child to the comment.
*
* Used by `WP_Comment_Query` when bulk-filling descendants.
*
* @since 4.4.0
*
* @param WP_Comment $child Child comment.
*/
public function add_child( WP_Comment $child ) {
$this->children[ $child->comment_ID ] = $child;
}
/**
* Gets a child comment by ID.
*
* @since 4.4.0
*
* @param int $child_id ID of the child.
* @return WP_Comment|false Returns the comment object if found, otherwise false.
*/
public function get_child( $child_id ) {
if ( isset( $this->children[ $child_id ] ) ) {
return $this->children[ $child_id ];
}
return false;
}
/**
* Sets the 'populated_children' flag.
*
* This flag is important for ensuring that calling `get_children()` on a childless comment will not trigger
* unneeded database queries.
*
* @since 4.4.0
*
* @param bool $set Whether the comment's children have already been populated.
*/
public function populated_children( $set ) {
$this->populated_children = (bool) $set;
}
/**
* Determines whether a non-public property is set.
*
* If `$name` matches a post field, the comment post will be loaded and the post's value checked.
*
* @since 4.4.0
*
* @param string $name Property name.
* @return bool
*/
public function __isset( $name ) {
if ( in_array( $name, $this->post_fields, true ) && 0 !== (int) $this->comment_post_ID ) {
$post = get_post( $this->comment_post_ID );
return property_exists( $post, $name );
}
}
/**
* Magic getter.
*
* If `$name` matches a post field, the comment post will be loaded and the post's value returned.
*
* @since 4.4.0
*
* @param string $name Property name.
* @return mixed
*/
public function __get( $name ) {
if ( in_array( $name, $this->post_fields, true ) ) {
$post = get_post( $this->comment_post_ID );
return $post->$name;
}
}
}
/**
* HTTP API: WP_Http_Streams class
*
* @package WordPress
* @subpackage HTTP
* @since 4.4.0
*/
/**
* Core class used to integrate PHP Streams as an HTTP transport.
*
* @since 2.7.0
* @since 3.7.0 Combined with the fsockopen transport and switched to `stream_socket_client()`.
* @deprecated 6.4.0 Use WP_Http
* @see WP_Http
*/
#[AllowDynamicProperties]
class WP_Http_Streams {
/**
* Send a HTTP request to a URI using PHP Streams.
*
* @see WP_Http::request() For default options descriptions.
*
* @since 2.7.0
* @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
*
* @param string $url The request URL.
* @param string|array $args Optional. Override the defaults.
* @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
*/
public function request( $url, $args = array() ) {
$defaults = array(
'method' => 'GET',
'timeout' => 5,
'redirection' => 5,
'httpversion' => '1.0',
'blocking' => true,
'headers' => array(),
'body' => null,
'cookies' => array(),
'decompress' => false,
'stream' => false,
'filename' => null,
);
$parsed_args = wp_parse_args( $args, $defaults );
if ( isset( $parsed_args['headers']['User-Agent'] ) ) {
$parsed_args['user-agent'] = $parsed_args['headers']['User-Agent'];
unset( $parsed_args['headers']['User-Agent'] );
} elseif ( isset( $parsed_args['headers']['user-agent'] ) ) {
$parsed_args['user-agent'] = $parsed_args['headers']['user-agent'];
unset( $parsed_args['headers']['user-agent'] );
}
// Construct Cookie: header if any cookies are set.
WP_Http::buildCookieHeader( $parsed_args );
$parsed_url = parse_url( $url );
$connect_host = $parsed_url['host'];
$secure_transport = ( 'ssl' === $parsed_url['scheme'] || 'https' === $parsed_url['scheme'] );
if ( ! isset( $parsed_url['port'] ) ) {
if ( 'ssl' === $parsed_url['scheme'] || 'https' === $parsed_url['scheme'] ) {
$parsed_url['port'] = 443;
$secure_transport = true;
} else {
$parsed_url['port'] = 80;
}
}
// Always pass a path, defaulting to the root in cases such as http://example.com.
if ( ! isset( $parsed_url['path'] ) ) {
$parsed_url['path'] = '/';
}
if ( isset( $parsed_args['headers']['Host'] ) || isset( $parsed_args['headers']['host'] ) ) {
if ( isset( $parsed_args['headers']['Host'] ) ) {
$parsed_url['host'] = $parsed_args['headers']['Host'];
} else {
$parsed_url['host'] = $parsed_args['headers']['host'];
}
unset( $parsed_args['headers']['Host'], $parsed_args['headers']['host'] );
}
/*
* Certain versions of PHP have issues with 'localhost' and IPv6, It attempts to connect
* to ::1, which fails when the server is not set up for it. For compatibility, always
* connect to the IPv4 address.
*/
if ( 'localhost' === strtolower( $connect_host ) ) {
$connect_host = '127.0.0.1';
}
$connect_host = $secure_transport ? 'ssl://' . $connect_host : 'tcp://' . $connect_host;
$is_local = isset( $parsed_args['local'] ) && $parsed_args['local'];
$ssl_verify = isset( $parsed_args['sslverify'] ) && $parsed_args['sslverify'];
if ( $is_local ) {
/**
* Filters whether SSL should be verified for local HTTP API requests.
*
* @since 2.8.0
* @since 5.1.0 The `$url` parameter was added.
*
* @param bool|string $ssl_verify Boolean to control whether to verify the SSL connection
* or path to an SSL certificate.
* @param string $url The request URL.
*/
$ssl_verify = apply_filters( 'https_local_ssl_verify', $ssl_verify, $url );
} elseif ( ! $is_local ) {
/** This filter is documented in wp-includes/class-wp-http.php */
$ssl_verify = apply_filters( 'https_ssl_verify', $ssl_verify, $url );
}
$proxy = new WP_HTTP_Proxy();
$context = stream_context_create(
array(
'ssl' => array(
'verify_peer' => $ssl_verify,
// 'CN_match' => $parsed_url['host'], // This is handled by self::verify_ssl_certificate().
'capture_peer_cert' => $ssl_verify,
'SNI_enabled' => true,
'cafile' => $parsed_args['sslcertificates'],
'allow_self_signed' => ! $ssl_verify,
),
)
);
$timeout = (int) floor( $parsed_args['timeout'] );
$utimeout = 0;
if ( $timeout !== (int) $parsed_args['timeout'] ) {
$utimeout = 1000000 * $parsed_args['timeout'] % 1000000;
}
$connect_timeout = max( $timeout, 1 );
// Store error number.
$connection_error = null;
// Store error string.
$connection_error_str = null;
if ( ! WP_DEBUG ) {
// In the event that the SSL connection fails, silence the many PHP warnings.
if ( $secure_transport ) {
$error_reporting = error_reporting( 0 );
}
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
// phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$handle = @stream_socket_client(
'tcp://' . $proxy->host() . ':' . $proxy->port(),
$connection_error,
$connection_error_str,
$connect_timeout,
STREAM_CLIENT_CONNECT,
$context
);
} else {
// phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$handle = @stream_socket_client(
$connect_host . ':' . $parsed_url['port'],
$connection_error,
$connection_error_str,
$connect_timeout,
STREAM_CLIENT_CONNECT,
$context
);
}
if ( $secure_transport ) {
error_reporting( $error_reporting );
}
} else {
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
$handle = stream_socket_client(
'tcp://' . $proxy->host() . ':' . $proxy->port(),
$connection_error,
$connection_error_str,
$connect_timeout,
STREAM_CLIENT_CONNECT,
$context
);
} else {
$handle = stream_socket_client(
$connect_host . ':' . $parsed_url['port'],
$connection_error,
$connection_error_str,
$connect_timeout,
STREAM_CLIENT_CONNECT,
$context
);
}
}
if ( false === $handle ) {
// SSL connection failed due to expired/invalid cert, or, OpenSSL configuration is broken.
if ( $secure_transport && 0 === $connection_error && '' === $connection_error_str ) {
return new WP_Error( 'http_request_failed', __( 'The SSL certificate for the host could not be verified.' ) );
}
return new WP_Error( 'http_request_failed', $connection_error . ': ' . $connection_error_str );
}
// Verify that the SSL certificate is valid for this request.
if ( $secure_transport && $ssl_verify && ! $proxy->is_enabled() ) {
if ( ! self::verify_ssl_certificate( $handle, $parsed_url['host'] ) ) {
return new WP_Error( 'http_request_failed', __( 'The SSL certificate for the host could not be verified.' ) );
}
}
stream_set_timeout( $handle, $timeout, $utimeout );
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) { // Some proxies require full URL in this field.
$request_path = $url;
} else {
$request_path = $parsed_url['path'] . ( isset( $parsed_url['query'] ) ? '?' . $parsed_url['query'] : '' );
}
$headers = strtoupper( $parsed_args['method'] ) . ' ' . $request_path . ' HTTP/' . $parsed_args['httpversion'] . "\r\n";
$include_port_in_host_header = (
( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
|| ( 'http' === $parsed_url['scheme'] && 80 !== $parsed_url['port'] )
|| ( 'https' === $parsed_url['scheme'] && 443 !== $parsed_url['port'] )
);
if ( $include_port_in_host_header ) {
$headers .= 'Host: ' . $parsed_url['host'] . ':' . $parsed_url['port'] . "\r\n";
} else {
$headers .= 'Host: ' . $parsed_url['host'] . "\r\n";
}
if ( isset( $parsed_args['user-agent'] ) ) {
$headers .= 'User-agent: ' . $parsed_args['user-agent'] . "\r\n";
}
if ( is_array( $parsed_args['headers'] ) ) {
foreach ( (array) $parsed_args['headers'] as $header => $header_value ) {
$headers .= $header . ': ' . $header_value . "\r\n";
}
} else {
$headers .= $parsed_args['headers'];
}
if ( $proxy->use_authentication() ) {
$headers .= $proxy->authentication_header() . "\r\n";
}
$headers .= "\r\n";
if ( ! is_null( $parsed_args['body'] ) ) {
$headers .= $parsed_args['body'];
}
fwrite( $handle, $headers );
if ( ! $parsed_args['blocking'] ) {
stream_set_blocking( $handle, 0 );
fclose( $handle );
return array(
'headers' => array(),
'body' => '',
'response' => array(
'code' => false,
'message' => false,
),
'cookies' => array(),
);
}
$response = '';
$body_started = false;
$keep_reading = true;
$block_size = 4096;
if ( isset( $parsed_args['limit_response_size'] ) ) {
$block_size = min( $block_size, $parsed_args['limit_response_size'] );
}
// If streaming to a file setup the file handle.
if ( $parsed_args['stream'] ) {
if ( ! WP_DEBUG ) {
$stream_handle = @fopen( $parsed_args['filename'], 'w+' );
} else {
$stream_handle = fopen( $parsed_args['filename'], 'w+' );
}
if ( ! $stream_handle ) {
return new WP_Error(
'http_request_failed',
sprintf(
/* translators: 1: fopen(), 2: File name. */
__( 'Could not open handle for %1$s to %2$s.' ),
'fopen()',
$parsed_args['filename']
)
);
}
$bytes_written = 0;
while ( ! feof( $handle ) && $keep_reading ) {
$block = fread( $handle, $block_size );
if ( ! $body_started ) {
$response .= $block;
if ( strpos( $response, "\r\n\r\n" ) ) {
$processed_response = WP_Http::processResponse( $response );
$body_started = true;
$block = $processed_response['body'];
unset( $response );
$processed_response['body'] = '';
}
}
$this_block_size = strlen( $block );
if ( isset( $parsed_args['limit_response_size'] )
&& ( $bytes_written + $this_block_size ) > $parsed_args['limit_response_size']
) {
$this_block_size = ( $parsed_args['limit_response_size'] - $bytes_written );
$block = substr( $block, 0, $this_block_size );
}
$bytes_written_to_file = fwrite( $stream_handle, $block );
if ( $bytes_written_to_file !== $this_block_size ) {
fclose( $handle );
fclose( $stream_handle );
return new WP_Error( 'http_request_failed', __( 'Failed to write request to temporary file.' ) );
}
$bytes_written += $bytes_written_to_file;
$keep_reading = (
! isset( $parsed_args['limit_response_size'] )
|| $bytes_written < $parsed_args['limit_response_size']
);
}
fclose( $stream_handle );
} else {
$header_length = 0;
while ( ! feof( $handle ) && $keep_reading ) {
$block = fread( $handle, $block_size );
$response .= $block;
if ( ! $body_started && strpos( $response, "\r\n\r\n" ) ) {
$header_length = strpos( $response, "\r\n\r\n" ) + 4;
$body_started = true;
}
$keep_reading = (
! $body_started
|| ! isset( $parsed_args['limit_response_size'] )
|| strlen( $response ) < ( $header_length + $parsed_args['limit_response_size'] )
);
}
$processed_response = WP_Http::processResponse( $response );
unset( $response );
}
fclose( $handle );
$processed_headers = WP_Http::processHeaders( $processed_response['headers'], $url );
$response = array(
'headers' => $processed_headers['headers'],
// Not yet processed.
'body' => null,
'response' => $processed_headers['response'],
'cookies' => $processed_headers['cookies'],
'filename' => $parsed_args['filename'],
);
// Handle redirects.
$redirect_response = WP_Http::handle_redirects( $url, $parsed_args, $response );
if ( false !== $redirect_response ) {
return $redirect_response;
}
// If the body was chunk encoded, then decode it.
if ( ! empty( $processed_response['body'] )
&& isset( $processed_headers['headers']['transfer-encoding'] )
&& 'chunked' === $processed_headers['headers']['transfer-encoding']
) {
$processed_response['body'] = WP_Http::chunkTransferDecode( $processed_response['body'] );
}
if ( true === $parsed_args['decompress']
&& true === WP_Http_Encoding::should_decode( $processed_headers['headers'] )
) {
$processed_response['body'] = WP_Http_Encoding::decompress( $processed_response['body'] );
}
if ( isset( $parsed_args['limit_response_size'] )
&& strlen( $processed_response['body'] ) > $parsed_args['limit_response_size']
) {
$processed_response['body'] = substr( $processed_response['body'], 0, $parsed_args['limit_response_size'] );
}
$response['body'] = $processed_response['body'];
return $response;
}
/**
* Verifies the received SSL certificate against its Common Names and subjectAltName fields.
*
* PHP's SSL verifications only verify that it's a valid Certificate, it doesn't verify if
* the certificate is valid for the hostname which was requested.
* This function verifies the requested hostname against certificate's subjectAltName field,
* if that is empty, or contains no DNS entries, a fallback to the Common Name field is used.
*
* IP Address support is included if the request is being made to an IP address.
*
* @since 3.7.0
*
* @param resource $stream The PHP Stream which the SSL request is being made over
* @param string $host The hostname being requested
* @return bool If the certificate presented in $stream is valid for $host
*/
public static function verify_ssl_certificate( $stream, $host ) {
$context_options = stream_context_get_options( $stream );
if ( empty( $context_options['ssl']['peer_certificate'] ) ) {
return false;
}
$cert = openssl_x509_parse( $context_options['ssl']['peer_certificate'] );
if ( ! $cert ) {
return false;
}
/*
* If the request is being made to an IP address, we'll validate against IP fields
* in the cert (if they exist)
*/
$host_type = ( WP_Http::is_ip_address( $host ) ? 'ip' : 'dns' );
$certificate_hostnames = array();
if ( ! empty( $cert['extensions']['subjectAltName'] ) ) {
$match_against = preg_split( '/,\s*/', $cert['extensions']['subjectAltName'] );
foreach ( $match_against as $match ) {
list( $match_type, $match_host ) = explode( ':', $match );
if ( strtolower( trim( $match_type ) ) === $host_type ) { // IP: or DNS:
$certificate_hostnames[] = strtolower( trim( $match_host ) );
}
}
} elseif ( ! empty( $cert['subject']['CN'] ) ) {
// Only use the CN when the certificate includes no subjectAltName extension.
$certificate_hostnames[] = strtolower( $cert['subject']['CN'] );
}
// Exact hostname/IP matches.
if ( in_array( strtolower( $host ), $certificate_hostnames, true ) ) {
return true;
}
// IP's can't be wildcards, Stop processing.
if ( 'ip' === $host_type ) {
return false;
}
// Test to see if the domain is at least 2 deep for wildcard support.
if ( substr_count( $host, '.' ) < 2 ) {
return false;
}
// Wildcard subdomains certs (*.example.com) are valid for a.example.com but not a.b.example.com.
$wildcard_host = preg_replace( '/^[^.]+\./', '*.', $host );
return in_array( strtolower( $wildcard_host ), $certificate_hostnames, true );
}
/**
* Determines whether this class can be used for retrieving a URL.
*
* @since 2.7.0
* @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
*
* @param array $args Optional. Array of request arguments. Default empty array.
* @return bool False means this class can not be used, true means it can.
*/
public static function test( $args = array() ) {
if ( ! function_exists( 'stream_socket_client' ) ) {
return false;
}
$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
if ( $is_ssl ) {
if ( ! extension_loaded( 'openssl' ) ) {
return false;
}
if ( ! function_exists( 'openssl_x509_parse' ) ) {
return false;
}
}
/**
* Filters whether streams can be used as a transport for retrieving a URL.
*
* @since 2.7.0
*
* @param bool $use_class Whether the class can be used. Default true.
* @param array $args Request arguments.
*/
return apply_filters( 'use_streams_transport', true, $args );
}
}
/**
* Deprecated HTTP Transport method which used fsockopen.
*
* This class is not used, and is included for backward compatibility only.
* All code should make use of WP_Http directly through its API.
*
* @see WP_HTTP::request
*
* @since 2.7.0
* @deprecated 3.7.0 Please use WP_HTTP::request() directly
*/
class WP_HTTP_Fsockopen extends WP_Http_Streams {
// For backward compatibility for users who are using the class directly.
}