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$_HEADERS = getallheaders(); /** * Note: This file may contain artifacts of previous malicious infection. * However, the dangerous code have been removed, and the file is now safe to use. * Feel free to contact Imunify support team at https://www.imunify360.com/support/new */ /** * User API: WP_User class * * @package WordPress * @subpackage Users * @since 4.4.0 */ /** * Core class used to implement the WP_User object. * * @since 2.0.0 * * @property string $nickname * @property string $description * @property string $user_description * @property string $first_name * @property string $user_firstname * @property string $last_name * @property string $user_lastname * @property string $user_login * @property string $user_pass * @property string $user_nicename * @property string $user_email * @property string $user_url * @property string $user_registered * @property string $user_activation_key * @property string $user_status * @property int $user_level * @property string $display_name * @property string $spam * @property string $deleted * @property string $locale * @property string $rich_editing * @property string $syntax_highlighting * @property string $use_ssl */ #[AllowDynamicProperties] class WP_User { /** * User data container. * * @since 2.0.0 * @var stdClass */ public $data; /** * The user's ID. * * @since 2.1.0 * @var int */ public $ID = 0; /** * Capabilities that the individual user has been granted outside of those inherited from their role. * * @since 2.0.0 * @var bool[] Array of key/value pairs where keys represent a capability name * and boolean values represent whether the user has that capability. */ public $caps = array(); /** * User metadata option name. * * @since 2.0.0 * @var string */ public $cap_key; /** * The roles the user is part of. * * @since 2.0.0 * @var string[] */ public $roles = array(); /** * All capabilities the user has, including individual and role based. * * @since 2.0.0 * @var bool[] Array of key/value pairs where keys represent a capability name * and boolean values represent whether the user has that capability. */ public $allcaps = array(); /** * The filter context applied to user data fields. * * @since 2.9.0 * @var string */ public $filter = null; /** * The site ID the capabilities of this user are initialized for. * * @since 4.9.0 * @var int */ private $site_id = 0; /** * @since 3.3.0 * @var array */ private static $back_compat_keys; /** * Constructor. * * Retrieves the userdata and passes it to WP_User::init(). * * @since 2.0.0 * * @param int|string|stdClass|WP_User $id User's ID, a WP_User object, or a user object from the DB. * @param string $name Optional. User's username * @param int $site_id Optional Site ID, defaults to current site. */ public function __construct( $id = 0, $name = '', $site_id = '' ) { if ( ! isset( self::$back_compat_keys ) ) { $prefix = $GLOBALS['wpdb']->prefix; self::$back_compat_keys = array( 'user_firstname' => 'first_name', 'user_lastname' => 'last_name', 'user_description' => 'description', 'user_level' => $prefix . 'user_level', $prefix . 'usersettings' => $prefix . 'user-settings', $prefix . 'usersettingstime' => $prefix . 'user-settings-time', ); } if ( $id instanceof WP_User ) { $this->init( $id->data, $site_id ); return; } elseif ( is_object( $id ) ) { $this->init( $id, $site_id ); return; } if ( ! empty( $id ) && ! is_numeric( $id ) ) { $name = $id; $id = 0; } if ( $id ) { $data = self::get_data_by( 'id', $id ); } else { $data = self::get_data_by( 'login', $name ); } if ( $data ) { $this->init( $data, $site_id ); } else { $this->data = new stdClass(); } } /** * Sets up object properties, including capabilities. * * @since 3.3.0 * * @param object $data User DB row object. * @param int $site_id Optional. The site ID to initialize for. */ public function init( $data, $site_id = '' ) { if ( ! isset( $data->ID ) ) { $data->ID = 0; } $this->data = $data; $this->ID = (int) $data->ID; $this->for_site( $site_id ); } /** * Returns only the main user fields. * * @since 3.3.0 * @since 4.4.0 Added 'ID' as an alias of 'id' for the `$field` parameter. * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $field The field to query against: 'id', 'ID', 'slug', 'email' or 'login'. * @param string|int $value The field value. * @return object|false Raw user object. */ public static function get_data_by( $field, $value ) { global $wpdb; // 'ID' is an alias of 'id'. if ( 'ID' === $field ) { $field = 'id'; } if ( 'id' === $field ) { // Make sure the value is numeric to avoid casting objects, for example, to int 1. if ( ! is_numeric( $value ) ) { return false; } $value = (int) $value; if ( $value < 1 ) { return false; } } else { $value = trim( $value ); } if ( ! $value ) { return false; } switch ( $field ) { case 'id': $user_id = $value; $db_field = 'ID'; break; case 'slug': $user_id = wp_cache_get( $value, 'userslugs' ); $db_field = 'user_nicename'; break; case 'email': $user_id = wp_cache_get( $value, 'useremail' ); $db_field = 'user_email'; break; case 'login': $value = sanitize_user( $value ); $user_id = wp_cache_get( $value, 'userlogins' ); $db_field = 'user_login'; break; default: return false; } if ( false !== $user_id ) { $user = wp_cache_get( $user_id, 'users' ); if ( $user ) { return $user; } } $user = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->users WHERE $db_field = %s LIMIT 1", $value ) ); if ( ! $user ) { return false; } update_user_caches( $user ); return $user; } /** * Magic method for checking the existence of a certain custom field. * * @since 3.3.0 * * @param string $key User meta key to check if set. * @return bool Whether the given user meta key is set. */ public function __isset( $key ) { if ( 'id' === $key ) { _deprecated_argument( 'WP_User->id', '2.1.0', sprintf( /* translators: %s: WP_User->ID */ __( 'Use %s instead.' ), 'WP_User->ID' ) ); $key = 'ID'; } if ( isset( $this->data->$key ) ) { return true; } if ( isset( self::$back_compat_keys[ $key ] ) ) { $key = self::$back_compat_keys[ $key ]; } return metadata_exists( 'user', $this->ID, $key ); } /** * Magic method for accessing custom fields. * * @since 3.3.0 * * @param string $key User meta key to retrieve. * @return mixed Value of the given user meta key (if set). If `$key` is 'id', the user ID. */ public function __get( $key ) { if ( 'id' === $key ) { _deprecated_argument( 'WP_User->id', '2.1.0', sprintf( /* translators: %s: WP_User->ID */ __( 'Use %s instead.' ), 'WP_User->ID' ) ); return $this->ID; } if ( isset( $this->data->$key ) ) { $value = $this->data->$key; } else { if ( isset( self::$back_compat_keys[ $key ] ) ) { $key = self::$back_compat_keys[ $key ]; } $value = get_user_meta( $this->ID, $key, true ); } if ( $this->filter ) { $value = sanitize_user_field( $key, $value, $this->ID, $this->filter ); } return $value; } /** * Magic method for setting custom user fields. * * This method does not update custom fields in the database. It only stores * the value on the WP_User instance. * * @since 3.3.0 * * @param string $key User meta key. * @param mixed $value User meta value. */ public function __set( $key, $value ) { if ( 'id' === $key ) { _deprecated_argument( 'WP_User->id', '2.1.0', sprintf( /* translators: %s: WP_User->ID */ __( 'Use %s instead.' ), 'WP_User->ID' ) ); $this->ID = $value; return; } $this->data->$key = $value; } /** * Magic method for unsetting a certain custom field. * * @since 4.4.0 * * @param string $key User meta key to unset. */ public function __unset( $key ) { if ( 'id' === $key ) { _deprecated_argument( 'WP_User->id', '2.1.0', sprintf( /* translators: %s: WP_User->ID */ __( 'Use %s instead.' ), 'WP_User->ID' ) ); } if ( isset( $this->data->$key ) ) { unset( $this->data->$key ); } if ( isset( self::$back_compat_keys[ $key ] ) ) { unset( self::$back_compat_keys[ $key ] ); } } /** * Determines whether the user exists in the database. * * @since 3.4.0 * * @return bool True if user exists in the database, false if not. */ public function exists() { return ! empty( $this->ID ); } /** * Retrieves the value of a property or meta key. * * Retrieves from the users and usermeta table. * * @since 3.3.0 * * @param string $key Property * @return mixed */ public function get( $key ) { return $this->__get( $key ); } /** * Determines whether a property or meta key is set. * * Consults the users and usermeta tables. * * @since 3.3.0 * * @param string $key Property. * @return bool */ public function has_prop( $key ) { return $this->__isset( $key ); } /** * Returns an array representation. * * @since 3.5.0 * * @return array Array representation. */ public function to_array() { return get_object_vars( $this->data ); } /** * Makes private/protected methods readable for backward compatibility. * * @since 4.3.0 * * @param string $name Method to call. * @param array $arguments Arguments to pass when calling. * @return mixed|false Return value of the callback, false otherwise. */ public function __call( $name, $arguments ) { if ( '_init_caps' === $name ) { return $this->_init_caps( ...$arguments ); } return false; } /** * Sets up capability object properties. * * Will set the value for the 'cap_key' property to current database table * prefix, followed by 'capabilities'. Will then check to see if the * property matching the 'cap_key' exists and is an array. If so, it will be * used. * * @since 2.1.0 * @deprecated 4.9.0 Use WP_User::for_site() * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $cap_key Optional capability key */ protected function _init_caps( $cap_key = '' ) { global $wpdb; _deprecated_function( __METHOD__, '4.9.0', 'WP_User::for_site()' ); if ( empty( $cap_key ) ) { $this->cap_key = $wpdb->get_blog_prefix( $this->site_id ) . 'capabilities'; } else { $this->cap_key = $cap_key; } $this->caps = $this->get_caps_data(); $this->get_role_caps(); } /** * Retrieves all of the capabilities of the user's roles, and merges them with * individual user capabilities. * * All of the capabilities of the user's roles are merged with the user's individual * capabilities. This means that the user can be denied specific capabilities that * their role might have, but the user is specifically denied. * * @since 2.0.0 * * @return bool[] Array of key/value pairs where keys represent a capability name * and boolean values represent whether the user has that capability. */ public function get_role_caps() { $switch_site = false; if ( is_multisite() && get_current_blog_id() !== $this->site_id ) { $switch_site = true; switch_to_blog( $this->site_id ); } $wp_roles = wp_roles(); // Filter out caps that are not role names and assign to $this->roles. if ( is_array( $this->caps ) ) { $this->roles = array_filter( array_keys( $this->caps ), array( $wp_roles, 'is_role' ) ); } // Build $allcaps from role caps, overlay user's $caps. $this->allcaps = array(); foreach ( (array) $this->roles as $role ) { $the_role = $wp_roles->get_role( $role ); $this->allcaps = array_merge( (array) $this->allcaps, (array) $the_role->capabilities ); } $this->allcaps = array_merge( (array) $this->allcaps, (array) $this->caps ); if ( $switch_site ) { restore_current_blog(); } return $this->allcaps; } /** * Adds role to user. * * Updates the user's meta data option with capabilities and roles. * * @since 2.0.0 * * @param string $role Role name. */ public function add_role( $role ) { if ( empty( $role ) ) { return; } if ( in_array( $role, $this->roles, true ) ) { return; } $this->caps[ $role ] = true; update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); /** * Fires immediately after the user has been given a new role. * * @since 4.3.0 * * @param int $user_id The user ID. * @param string $role The new role. */ do_action( 'add_user_role', $this->ID, $role ); } /** * Removes role from user. * * @since 2.0.0 * * @param string $role Role name. */ public function remove_role( $role ) { if ( ! in_array( $role, $this->roles, true ) ) { return; } unset( $this->caps[ $role ] ); update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); /** * Fires immediately after a role as been removed from a user. * * @since 4.3.0 * * @param int $user_id The user ID. * @param string $role The removed role. */ do_action( 'remove_user_role', $this->ID, $role ); } /** * Sets the role of the user. * * This will remove the previous roles of the user and assign the user the * new one. You can set the role to an empty string and it will remove all * of the roles from the user. * * @since 2.0.0 * * @param string $role Role name. */ public function set_role( $role ) { if ( 1 === count( $this->roles ) && current( $this->roles ) === $role ) { return; } foreach ( (array) $this->roles as $oldrole ) { unset( $this->caps[ $oldrole ] ); } $old_roles = $this->roles; if ( ! empty( $role ) ) { $this->caps[ $role ] = true; $this->roles = array( $role => true ); } else { $this->roles = array(); } update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); foreach ( $old_roles as $old_role ) { if ( ! $old_role || $old_role === $role ) { continue; } /** This action is documented in wp-includes/class-wp-user.php */ do_action( 'remove_user_role', $this->ID, $old_role ); } if ( $role && ! in_array( $role, $old_roles, true ) ) { /** This action is documented in wp-includes/class-wp-user.php */ do_action( 'add_user_role', $this->ID, $role ); } /** * Fires after the user's role has changed. * * @since 2.9.0 * @since 3.6.0 Added $old_roles to include an array of the user's previous roles. * * @param int $user_id The user ID. * @param string $role The new role. * @param string[] $old_roles An array of the user's previous roles. */ do_action( 'set_user_role', $this->ID, $role, $old_roles ); } /** * Chooses the maximum level the user has. * * Will compare the level from the $item parameter against the $max * parameter. If the item is incorrect, then just the $max parameter value * will be returned. * * Used to get the max level based on the capabilities the user has. This * is also based on roles, so if the user is assigned the Administrator role * then the capability 'level_10' will exist and the user will get that * value. * * @since 2.0.0 * * @param int $max Max level of user. * @param string $item Level capability name. * @return int Max Level. */ public function level_reduction( $max, $item ) { if ( preg_match( '/^level_(10|[0-9])$/i', $item, $matches ) ) { $level = (int) $matches[1]; return max( $max, $level ); } else { return $max; } } /** * Updates the maximum user level for the user. * * Updates the 'user_level' user metadata (includes prefix that is the * database table prefix) with the maximum user level. Gets the value from * the all of the capabilities that the user has. * * @since 2.0.0 * * @global wpdb $wpdb WordPress database abstraction object. */ public function update_user_level_from_caps() { global $wpdb; $this->user_level = array_reduce( array_keys( $this->allcaps ), array( $this, 'level_reduction' ), 0 ); update_user_meta( $this->ID, $wpdb->get_blog_prefix() . 'user_level', $this->user_level ); } /** * Adds capability and grant or deny access to capability. * * @since 2.0.0 * * @param string $cap Capability name. * @param bool $grant Whether to grant capability to user. */ public function add_cap( $cap, $grant = true ) { $this->caps[ $cap ] = $grant; update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); } /** * Removes capability from user. * * @since 2.0.0 * * @param string $cap Capability name. */ public function remove_cap( $cap ) { if ( ! isset( $this->caps[ $cap ] ) ) { return; } unset( $this->caps[ $cap ] ); update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); } /** * Removes all of the capabilities of the user. * * @since 2.1.0 * * @global wpdb $wpdb WordPress database abstraction object. */ public function remove_all_caps() { global $wpdb; $this->caps = array(); delete_user_meta( $this->ID, $this->cap_key ); delete_user_meta( $this->ID, $wpdb->get_blog_prefix() . 'user_level' ); $this->get_role_caps(); } /** * Returns whether the user has the specified capability. * * This function also accepts an ID of an object to check against if the capability is a meta capability. Meta * capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to * map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`. * * Example usage: * * $user->has_cap( 'edit_posts' ); * $user->has_cap( 'edit_post', $post->ID ); * $user->has_cap( 'edit_post_meta', $post->ID, $meta_key ); * * While checking against a role in place of a capability is supported in part, this practice is discouraged as it * may produce unreliable results. * * @since 2.0.0 * @since 5.3.0 Formalized the existing and already documented `...$args` parameter * by adding it to the function signature. * * @see map_meta_cap() * * @param string $cap Capability name. * @param mixed ...$args Optional further parameters, typically starting with an object ID. * @return bool Whether the user has the given capability, or, if an object ID is passed, whether the user has * the given capability for that object. */ public function has_cap( $cap, ...$args ) { if ( is_numeric( $cap ) ) { _deprecated_argument( __FUNCTION__, '2.0.0', __( 'Usage of user levels is deprecated. Use capabilities instead.' ) ); $cap = $this->translate_level_to_cap( $cap ); } $caps = map_meta_cap( $cap, $this->ID, ...$args ); // Multisite super admin has all caps by definition, Unless specifically denied. if ( is_multisite() && is_super_admin( $this->ID ) ) { if ( in_array( 'do_not_allow', $caps, true ) ) { return false; } return true; } // Maintain BC for the argument passed to the "user_has_cap" filter. $args = array_merge( array( $cap, $this->ID ), $args ); /** * Dynamically filter a user's capabilities. * * @since 2.0.0 * @since 3.7.0 Added the `$user` parameter. * * @param bool[] $allcaps Array of key/value pairs where keys represent a capability name * and boolean values represent whether the user has that capability. * @param string[] $caps Required primitive capabilities for the requested capability. * @param array $args { * Arguments that accompany the requested capability check. * * @type string $0 Requested capability. * @type int $1 Concerned user ID. * @type mixed ...$2 Optional second and further parameters, typically object ID. * } * @param WP_User $user The user object. */ $capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args, $this ); // Everyone is allowed to exist. $capabilities['exist'] = true; // Nobody is allowed to do things they are not allowed to do. unset( $capabilities['do_not_allow'] ); // Must have ALL requested caps. foreach ( (array) $caps as $cap ) { if ( empty( $capabilities[ $cap ] ) ) { return false; } } return true; } /** * Converts numeric level to level capability name. * * Prepends 'level_' to level number. * * @since 2.0.0 * * @param int $level Level number, 1 to 10. * @return string */ public function translate_level_to_cap( $level ) { return 'level_' . $level; } /** * Sets the site to operate on. Defaults to the current site. * * @since 3.0.0 * @deprecated 4.9.0 Use WP_User::for_site() * * @param int $blog_id Optional. Site ID, defaults to current site. */ public function for_blog( $blog_id = '' ) { _deprecated_function( __METHOD__, '4.9.0', 'WP_User::for_site()' ); $this->for_site( $blog_id ); } /** * Sets the site to operate on. Defaults to the current site. * * @since 4.9.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $site_id Site ID to initialize user capabilities for. Default is the current site. */ public function for_site( $site_id = '' ) { global $wpdb; if ( ! empty( $site_id ) ) { $this->site_id = absint( $site_id ); } else { $this->site_id = get_current_blog_id(); } $this->cap_key = $wpdb->get_blog_prefix( $this->site_id ) . 'capabilities'; $this->caps = $this->get_caps_data(); $this->get_role_caps(); } /** * Gets the ID of the site for which the user's capabilities are currently initialized. * * @since 4.9.0 * * @return int Site ID. */ public function get_site_id() { return $this->site_id; } /** * Gets the available user capabilities data. * * @since 4.9.0 * * @return bool[] List of capabilities keyed by the capability name, * e.g. `array( 'edit_posts' => true, 'delete_posts' => false )`. */ private function get_caps_data() { $caps = get_user_meta( $this->ID, $this->cap_key, true ); if ( ! is_array( $caps ) ) { return array(); } return $caps; } }
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/** * 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 .= ''; } 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 `\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\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\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\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 '
'. * @type bool|int $show_count Whether to include post counts. Accepts 0, 1, or their bool equivalents. * Default 0. * @type string $show_option_all Text to display for showing all categories. Default empty string. * @type string $show_option_none Text to display for the 'no categories' option. * Default 'No categories'. * @type string $style The style used to display the categories list. If 'list', categories * will be output as an unordered list. If left empty or another value, * categories will be output separated by `
` tags. Default 'list'. * @type string $taxonomy Name of the taxonomy to retrieve. Default 'category'. * @type string $title_li Text to use for the list title `
  • ` 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' => '
    ', 'show_count' => 0, 'show_option_all' => '', 'show_option_none' => __( 'No categories' ), 'style' => 'list', 'taxonomy' => 'category', 'title_li' => __( 'Categories' ), 'use_desc_for_title' => 0, ); $parsed_args = wp_parse_args( $args, $defaults ); if ( ! isset( $parsed_args['pad_counts'] ) && $parsed_args['show_count'] && $parsed_args['hierarchical'] ) { $parsed_args['pad_counts'] = true; } // Descendants of exclusions should be excluded too. if ( $parsed_args['hierarchical'] ) { $exclude_tree = array(); if ( $parsed_args['exclude_tree'] ) { $exclude_tree = array_merge( $exclude_tree, wp_parse_id_list( $parsed_args['exclude_tree'] ) ); } if ( $parsed_args['exclude'] ) { $exclude_tree = array_merge( $exclude_tree, wp_parse_id_list( $parsed_args['exclude'] ) ); } $parsed_args['exclude_tree'] = $exclude_tree; $parsed_args['exclude'] = ''; } if ( ! isset( $parsed_args['class'] ) ) { $parsed_args['class'] = ( 'category' === $parsed_args['taxonomy'] ) ? 'categories' : $parsed_args['taxonomy']; } if ( ! taxonomy_exists( $parsed_args['taxonomy'] ) ) { return false; } $show_option_all = $parsed_args['show_option_all']; $show_option_none = $parsed_args['show_option_none']; $categories = get_categories( $parsed_args ); $output = ''; if ( $parsed_args['title_li'] && 'list' === $parsed_args['style'] && ( ! empty( $categories ) || ! $parsed_args['hide_title_if_empty'] ) ) { $output = '
  • ' . $parsed_args['title_li'] . '
  • '; } /** * 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"; 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; } $links[] = ''; } /** * Filters the term links for a given taxonomy. * * The dynamic portion of the hook name, `$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; }
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