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bp-core-functions.php
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bp-core-functions.php
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<?php
/**
* BuddyPress Common Functions.
*
* @package BuddyPress
* @subpackage Functions
*/
// Exit if accessed directly
defined( 'ABSPATH' ) || exit;
/** Versions ******************************************************************/
/**
* Output the BuddyPress version.
*
* @since BuddyPress (1.6.0)
*
* @uses bp_get_version() To get the BuddyPress version.
*/
function bp_version() {
echo bp_get_version();
}
/**
* Return the BuddyPress version.
*
* @since BuddyPress (1.6.0)
*
* @return string The BuddyPress version.
*/
function bp_get_version() {
return buddypress()->version;
}
/**
* Output the BuddyPress database version.
*
* @since BuddyPress (1.6.0)
*
* @uses bp_get_db_version() To get the BuddyPress database version.
*/
function bp_db_version() {
echo bp_get_db_version();
}
/**
* Return the BuddyPress database version.
*
* @since BuddyPress (1.6.0)
* @return string The BuddyPress database version.
*/
function bp_get_db_version() {
return buddypress()->db_version;
}
/**
* Output the BuddyPress database version.
*
* @since BuddyPress (1.6.0)
*
* @uses bp_get_db_version_raw() To get the current database BuddyPress version.
*/
function bp_db_version_raw() {
echo bp_get_db_version_raw();
}
/**
* Return the BuddyPress database version
*
* @since BuddyPress (1.6)
*
* @return string The BuddyPress version direct from the database.
*/
function bp_get_db_version_raw() {
$bp = buddypress();
return !empty( $bp->db_version_raw ) ? $bp->db_version_raw : 0;
}
/** Functions *****************************************************************/
/**
* Get the $wpdb base prefix, run through the 'bp_core_get_table_prefix' filter.
*
* The filter is intended primarily for use in multinetwork installations.
*
* @global object $wpdb WordPress database object.
*
* @return string Filtered database prefix.
*/
function bp_core_get_table_prefix() {
global $wpdb;
return apply_filters( 'bp_core_get_table_prefix', $wpdb->base_prefix );
}
/**
* Sort an array of objects or arrays by a specific key/property.
*
* The main purpose for this function is so that you can avoid having to create
* your own awkward callback function for usort().
*
* @since BuddyPress (2.2.0)
*
* @param array $items The items to be sorted. Its constituent items can be either associative arrays or objects.
* @param string|int $key The array index or property name to sort by.
* @param string $type Sort type. 'alpha' for alphabetical, 'num' for numeric. Default: 'alpha'.
* @return array $items The sorted array.
*/
function bp_sort_by_key( $items, $key, $type = 'alpha' ) {
usort( $items, create_function( '$a, $b', '
$values = array( 0 => false, 1 => false, );
$func_args = func_get_args();
foreach ( $func_args as $indexi => $index ) {
if ( isset( $index->' . $key . ' ) ) {
$values[ $indexi ] = $index->' . $key . ';
} elseif ( isset( $index["' . $key . '"] ) ) {
$values[ $indexi ] = $index["' . $key . '"];
}
}
if ( isset( $values[0], $values[1] ) ) {
if ( "num" === "' . $type . '" ) {
$cmp = $values[0] - $values[1];
} else {
$cmp = strcmp( $values[0], $values[1] );
}
if ( 0 > $cmp ) {
$retval = -1;
} elseif ( 0 < $cmp ) {
$retval = 1;
} else {
$retval = 0;
}
return $retval;
} else {
return 0;
}
') );
return $items;
}
/**
* Sort an array of objects or arrays by alphabetically sorting by a specific key/property.
*
* For instance, if you have an array of WordPress post objects, you can sort
* them by post_name as follows:
* $sorted_posts = bp_alpha_sort_by_key( $posts, 'post_name' );
*
* @since BuddyPress (1.9.0)
*
* @param array $items The items to be sorted. Its constituent items can be either associative arrays or objects.
* @param string|int $key The array index or property name to sort by.
* @return array $items The sorted array.
*/
function bp_alpha_sort_by_key( $items, $key ) {
return bp_sort_by_key( $items, $key, 'alpha' );
}
/**
* Format numbers the BuddyPress way.
*
* @param int $number The number to be formatted.
* @param bool $decimals Whether to use decimals. See {@link number_format_i18n()}.
* @return string The formatted number.
*/
function bp_core_number_format( $number = 0, $decimals = false ) {
// Force number to 0 if needed
if ( ! is_numeric( $number ) ) {
$number = 0;
}
return apply_filters( 'bp_core_number_format', number_format_i18n( $number, $decimals ), $number, $decimals );
}
/**
* A utility for parsing individual function arguments into an array.
*
* The purpose of this function is to help with backward compatibility in cases where
*
* function foo( $bar = 1, $baz = false, $barry = array(), $blip = false ) { // ...
*
* is deprecated in favor of
*
* function foo( $args = array() ) {
* $defaults = array(
* 'bar' => 1,
* 'arg2' => false,
* 'arg3' => array(),
* 'arg4' => false,
* );
* $r = wp_parse_args( $args, $defaults ); // ...
*
* The first argument, $old_args_keys, is an array that matches the parameter positions (keys) to
* the new $args keys (values):
*
* $old_args_keys = array(
* 0 => 'bar', // because $bar was the 0th parameter for foo()
* 1 => 'baz', // because $baz was the 1st parameter for foo()
* 2 => 'barry', // etc
* 3 => 'blip'
* );
*
* For the second argument, $func_args, you should just pass the value of func_get_args().
*
* @since BuddyPress (1.6)
* @param array $old_args_keys Old argument indexs, keyed to their positions.
* @param array $func_args The parameters passed to the originating function.
* @return array $new_args The parsed arguments.
*/
function bp_core_parse_args_array( $old_args_keys, $func_args ) {
$new_args = array();
foreach( $old_args_keys as $arg_num => $arg_key ) {
if ( isset( $func_args[$arg_num] ) ) {
$new_args[$arg_key] = $func_args[$arg_num];
}
}
return $new_args;
}
/**
* Merge user defined arguments into defaults array.
*
* This function is used throughout BuddyPress to allow for either a string or
* array to be merged into another array. It is identical to wp_parse_args()
* except it allows for arguments to be passively or aggressively filtered using
* the optional $filter_key parameter. If no $filter_key is passed, no filters
* are applied.
*
* @since BuddyPress (r7704)
*
* @param string|array $args Value to merge with $defaults
* @param array $defaults Array that serves as the defaults.
* @param string $filter_key String to key the filters from
* @return array Merged user defined values with defaults.
*/
function bp_parse_args( $args, $defaults = array(), $filter_key = '' ) {
// Setup a temporary array from $args
if ( is_object( $args ) ) {
$r = get_object_vars( $args );
} elseif ( is_array( $args ) ) {
$r =& $args;
} else {
wp_parse_str( $args, $r );
}
// Passively filter the args before the parse
if ( !empty( $filter_key ) ) {
$r = apply_filters( 'bp_before_' . $filter_key . '_parse_args', $r );
}
// Parse
if ( is_array( $defaults ) && !empty( $defaults ) ) {
$r = array_merge( $defaults, $r );
}
// Aggressively filter the args after the parse
if ( !empty( $filter_key ) ) {
$r = apply_filters( 'bp_after_' . $filter_key . '_parse_args', $r );
}
// Return the parsed results
return $r;
}
/**
* Sanitizes a pagination argument based on both the request override and the
* original value submitted via a query argument, likely to a template class
* responsible for limiting the resultset of a template loop.
*
* @since BuddyPress (2.2.0)
*
* @param string $page_arg The $_REQUEST argument to look for
* @param int $page The original page value to fall back to
* @return int A sanitized integer value, good for pagination
*/
function bp_sanitize_pagination_arg( $page_arg = '', $page = 1 ) {
// Check if request overrides exist
if ( isset( $_REQUEST[ $page_arg ] ) ) {
// Get the absolute integer value of the override
$int = absint( $_REQUEST[ $page_arg ] );
// If override is 0, do not use it. This prevents unlimited result sets.
// @see https://buddypress.trac.wordpress.org/ticket/5796
if ( $int ) {
$page = $int;
}
}
return intval( $page );
}
/**
* Sanitize an 'order' parameter for use in building SQL queries.
*
* Strings like 'DESC', 'desc', ' desc' will be interpreted into 'DESC'.
* Everything else becomes 'ASC'.
*
* @since BuddyPress (1.8.0)
*
* @param string $order The 'order' string, as passed to the SQL constructor.
* @return string The sanitized value 'DESC' or 'ASC'.
*/
function bp_esc_sql_order( $order = '' ) {
$order = strtoupper( trim( $order ) );
return 'DESC' === $order ? 'DESC' : 'ASC';
}
/**
* Escape special characters in a SQL LIKE clause.
*
* In WordPress 4.0, like_escape() was deprecated, due to incorrect
* documentation and improper sanitization leading to a history of misuse. To
* maintain compatibility with versions of WP before 4.0, we duplicate the
* logic of the replacement, wpdb::esc_like().
*
* @since BuddyPress (2.1.0)
*
* @see wpdb::esc_like() for more details on proper use.
*
* @param string $text The raw text to be escaped.
* @return string Text in the form of a LIKE phrase. Not SQL safe. Run through
* wpdb::prepare() before use.
*/
function bp_esc_like( $text ) {
global $wpdb;
if ( method_exists( $wpdb, 'esc_like' ) ) {
return $wpdb->esc_like( $text );
} else {
return addcslashes( $text, '_%\\' );
}
}
/**
* Are we running username compatibility mode?
*
* @since BuddyPress (1.5.0)
*
* @uses apply_filters() Filter 'bp_is_username_compatibility_mode' to alter.
* @todo Move to members component?
*
* @return bool False when compatibility mode is disabled, true when enabled.
* Default: false.
*/
function bp_is_username_compatibility_mode() {
return apply_filters( 'bp_is_username_compatibility_mode', defined( 'BP_ENABLE_USERNAME_COMPATIBILITY_MODE' ) && BP_ENABLE_USERNAME_COMPATIBILITY_MODE );
}
/**
* Should we use the WP Toolbar?
*
* The WP Toolbar, introduced in WP 3.1, is fully supported in BuddyPress as
* of BP 1.5. For BP 1.6, the WP Toolbar is the default.
*
* @since BuddyPress (1.5.0)
*
* @uses apply_filters() Filter 'bp_use_wp_admin_bar' to alter.
*
* @return bool Default: true. False when WP Toolbar support is disabled.
*/
function bp_use_wp_admin_bar() {
// Default to true (to avoid loading deprecated BuddyBar code)
$use_admin_bar = true;
// Has the WP Toolbar constant been explicitly opted into?
if ( defined( 'BP_USE_WP_ADMIN_BAR' ) ) {
$use_admin_bar = (bool) BP_USE_WP_ADMIN_BAR;
// ...or is the old BuddyBar being forced back into use?
} elseif ( bp_force_buddybar( false ) ) {
$use_admin_bar = false;
}
return (bool) apply_filters( 'bp_use_wp_admin_bar', $use_admin_bar );
}
/** Directory *****************************************************************/
/**
* Returns an array of core component IDs.
*
* @since BuddyPress (2.1.0)
*
* @return array
*/
function bp_core_get_packaged_component_ids() {
$components = array(
'activity',
'members',
'groups',
'blogs',
'xprofile',
'friends',
'messages',
'settings',
'notifications',
);
// only add legacy forums if it is enabled
// prevents conflicts with bbPress, which also uses the same 'forums' id
if ( class_exists( 'BP_Forums_Component' ) ) {
$components[] = 'forums';
}
return $components;
}
/**
* Fetch a list of BP directory pages from the appropriate meta table.
*
* @since BuddyPress (1.5.0)
*
* @param string $status 'active' to return only pages associated with active components, 'all' to return all saved
* pages. When running save routines, use 'all' to avoid removing data related to inactive
* components. Default: 'active'.
* @return array|string An array of page IDs, keyed by component names, or an
* empty string if the list is not found.
*/
function bp_core_get_directory_page_ids( $status = 'active' ) {
$page_ids = bp_get_option( 'bp-pages' );
// Ensure that empty indexes are unset. Should only matter in edge cases
if ( !empty( $page_ids ) && is_array( $page_ids ) ) {
foreach( (array) $page_ids as $component_name => $page_id ) {
if ( empty( $component_name ) || empty( $page_id ) ) {
unset( $page_ids[ $component_name ] );
}
// 'register' and 'activate' do not have components, but should be whitelisted.
if ( 'register' === $component_name || 'activate' === $component_name ) {
continue;
}
// Trashed pages should not appear in results.
if ( 'trash' == get_post_status( $page_id ) ) {
unset( $page_ids[ $component_name ] );
}
// Remove inactive component pages, if required.
if ( 'active' === $status && ! bp_is_active( $component_name ) ) {
unset( $page_ids[ $component_name ] );
}
}
}
return apply_filters( 'bp_core_get_directory_page_ids', $page_ids );
}
/**
* Store the list of BP directory pages in the appropriate meta table.
*
* bp-pages data is stored in site_options (falls back to options on non-MS),
* in an array keyed by blog_id. This allows you to change your
* bp_get_root_blog_id() and go through the setup process again.
*
* @since BuddyPress (1.5.0)
*
* @param array $blog_page_ids The IDs of the WP pages corresponding to BP
* component directories.
*/
function bp_core_update_directory_page_ids( $blog_page_ids ) {
bp_update_option( 'bp-pages', $blog_page_ids );
}
/**
* Get names and slugs for BuddyPress component directory pages.
*
* @since BuddyPress (1.5.0).
*
* @return object Page names, IDs, and slugs.
*/
function bp_core_get_directory_pages() {
global $wpdb;
// Look in cache first
$pages = wp_cache_get( 'directory_pages', 'bp' );
if ( false === $pages ) {
// Set pages as standard class
$pages = new stdClass;
// Get pages and IDs
$page_ids = bp_core_get_directory_page_ids();
if ( !empty( $page_ids ) ) {
// Always get page data from the root blog, except on multiblog mode, when it comes
// from the current blog
$posts_table_name = bp_is_multiblog_mode() ? $wpdb->posts : $wpdb->get_blog_prefix( bp_get_root_blog_id() ) . 'posts';
$page_ids_sql = implode( ',', wp_parse_id_list( $page_ids ) );
$page_names = $wpdb->get_results( "SELECT ID, post_name, post_parent, post_title FROM {$posts_table_name} WHERE ID IN ({$page_ids_sql}) AND post_status = 'publish' " );
foreach ( (array) $page_ids as $component_id => $page_id ) {
foreach ( (array) $page_names as $page_name ) {
if ( $page_name->ID == $page_id ) {
if ( !isset( $pages->{$component_id} ) || !is_object( $pages->{$component_id} ) ) {
$pages->{$component_id} = new stdClass;
}
$pages->{$component_id}->name = $page_name->post_name;
$pages->{$component_id}->id = $page_name->ID;
$pages->{$component_id}->title = $page_name->post_title;
$slug[] = $page_name->post_name;
// Get the slug
while ( $page_name->post_parent != 0 ) {
$parent = $wpdb->get_results( $wpdb->prepare( "SELECT post_name, post_parent FROM {$posts_table_name} WHERE ID = %d", $page_name->post_parent ) );
$slug[] = $parent[0]->post_name;
$page_name->post_parent = $parent[0]->post_parent;
}
$pages->{$component_id}->slug = implode( '/', array_reverse( (array) $slug ) );
}
unset( $slug );
}
}
}
wp_cache_set( 'directory_pages', $pages, 'bp' );
}
return apply_filters( 'bp_core_get_directory_pages', $pages );
}
/**
* Creates necessary directory pages.
*
* Directory pages are those WordPress pages used by BP components to display
* content (eg, the 'groups' page created by BP).
*
* @since BuddyPress (1.7.0)
*
* @param array $components Components to create pages for.
* @param string $existing 'delete' if you want to delete existing page
* mappings and replace with new ones. Otherwise existing page mappings
* are kept, and the gaps filled in with new pages. Default: 'keep'.
*/
function bp_core_add_page_mappings( $components, $existing = 'keep' ) {
// If no value is passed, there's nothing to do.
if ( empty( $components ) ) {
return;
}
// Make sure that the pages are created on the root blog no matter which
// dashboard the setup is being run on.
if ( ! bp_is_root_blog() ) {
switch_to_blog( bp_get_root_blog_id() );
}
$pages = bp_core_get_directory_page_ids( 'all' );
// Delete any existing pages
if ( 'delete' === $existing ) {
foreach ( (array) $pages as $page_id ) {
wp_delete_post( $page_id, true );
}
$pages = array();
}
$page_titles = array(
'activity' => _x( 'Activity', 'Page title for the Activity directory.', 'buddypress' ),
'groups' => _x( 'Groups', 'Page title for the Groups directory.', 'buddypress' ),
'sites' => _x( 'Sites', 'Page title for the Sites directory.', 'buddypress' ),
'members' => _x( 'Members', 'Page title for the Members directory.', 'buddypress' ),
'activate' => _x( 'Activate', 'Page title for the user activation screen.', 'buddypress' ),
'register' => _x( 'Register', 'Page title for the user registration screen.', 'buddypress' ),
);
$pages_to_create = array();
foreach ( array_keys( $components ) as $component_name ) {
if ( ! isset( $pages[ $component_name ] ) && isset( $page_titles[ $component_name ] ) ) {
$pages_to_create[ $component_name ] = $page_titles[ $component_name ];
}
}
// Register and Activate are not components, but need pages when
// registration is enabled
if ( bp_get_signup_allowed() ) {
foreach ( array( 'register', 'activate' ) as $slug ) {
if ( ! isset( $pages[ $slug ] ) ) {
$pages_to_create[ $slug ] = $page_titles[ $slug ];
}
}
}
// No need for a Sites directory unless we're on multisite
if ( ! is_multisite() && isset( $pages_to_create['sites'] ) ) {
unset( $pages_to_create['sites'] );
}
// Members must always have a page, no matter what
if ( ! isset( $pages['members'] ) && ! isset( $pages_to_create['members'] ) ) {
$pages_to_create['members'] = $page_titles['members'];
}
// Create the pages
foreach ( $pages_to_create as $component_name => $page_name ) {
$exists = get_page_by_path( $component_name );
// If page already exists, use it
if ( ! empty( $exists ) ) {
$pages[ $component_name ] = $exists->ID;
} else {
$pages[ $component_name ] = wp_insert_post( array(
'comment_status' => 'closed',
'ping_status' => 'closed',
'post_status' => 'publish',
'post_title' => $page_name,
'post_type' => 'page',
) );
}
}
// Save the page mapping
bp_update_option( 'bp-pages', $pages );
// If we had to switch_to_blog, go back to the original site.
if ( ! bp_is_root_blog() ) {
restore_current_blog();
}
}
/**
* Remove the entry from bp_pages when the corresponding WP page is deleted.
*
* Bails early on multisite installations when not viewing the root site.
* @link https://buddypress.trac.wordpress.org/ticket/6226
*
* @since BuddyPress (2.2.0)
*
* @param int $post_id Post ID.
*/
function bp_core_on_directory_page_delete( $post_id ) {
// Stop if we are not on the main BP root blog
if ( ! bp_is_root_blog() ) {
return;
}
$page_ids = bp_core_get_directory_page_ids( 'all' );
$component_name = array_search( $post_id, $page_ids );
if ( ! empty( $component_name ) ) {
unset( $page_ids[ $component_name ] );
}
bp_core_update_directory_page_ids( $page_ids );
}
add_action( 'delete_post', 'bp_core_on_directory_page_delete' );
/**
* Create a default component slug from a WP page root_slug.
*
* Since 1.5, BP components get their root_slug (the slug used immediately
* following the root domain) from the slug of a corresponding WP page.
*
* E.g. if your BP installation at example.com has its members page at
* example.com/community/people, $bp->members->root_slug will be
* 'community/people'.
*
* By default, this function creates a shorter version of the root_slug for
* use elsewhere in the URL, by returning the content after the final '/'
* in the root_slug ('people' in the example above).
*
* Filter on 'bp_core_component_slug_from_root_slug' to override this method
* in general, or define a specific component slug constant (e.g.
* BP_MEMBERS_SLUG) to override specific component slugs.
*
* @since BuddyPress (1.5.0)
*
* @param string $root_slug The root slug, which comes from $bp->pages->[component]->slug.
* @return string The short slug for use in the middle of URLs.
*/
function bp_core_component_slug_from_root_slug( $root_slug ) {
$slug_chunks = explode( '/', $root_slug );
$slug = array_pop( $slug_chunks );
return apply_filters( 'bp_core_component_slug_from_root_slug', $slug, $root_slug );
}
/**
* Add support for a top-level ("root") component.
*
* This function originally (pre-1.5) let plugins add support for pages in the
* root of the install. These root level pages are now handled by actual
* WordPress pages and this function is now a convenience for compatibility
* with the new method.
*
* @param string $slug The slug of the component being added to the root list.
*/
function bp_core_add_root_component( $slug ) {
$bp = buddypress();
if ( empty( $bp->pages ) ) {
$bp->pages = bp_core_get_directory_pages();
}
$match = false;
// Check if the slug is registered in the $bp->pages global
foreach ( (array) $bp->pages as $key => $page ) {
if ( $key == $slug || $page->slug == $slug ) {
$match = true;
}
}
// Maybe create the add_root array
if ( empty( $bp->add_root ) ) {
$bp->add_root = array();
}
// If there was no match, add a page for this root component
if ( empty( $match ) ) {
$add_root_items = $bp->add_root();
$add_root_items[] = $slug;
$bp->add_root = $add_root_items;
}
// Make sure that this component is registered as requiring a top-level directory
if ( isset( $bp->{$slug} ) ) {
$bp->loaded_components[$bp->{$slug}->slug] = $bp->{$slug}->id;
$bp->{$slug}->has_directory = true;
}
}
/**
* Create WordPress pages to be used as BP component directories.
*/
function bp_core_create_root_component_page() {
// Get BuddyPress
$bp = buddypress();
$new_page_ids = array();
foreach ( (array) $bp->add_root as $slug ) {
$new_page_ids[ $slug ] = wp_insert_post( array(
'comment_status' => 'closed',
'ping_status' => 'closed',
'post_title' => ucwords( $slug ),
'post_status' => 'publish',
'post_type' => 'page'
) );
}
$page_ids = array_merge( (array) $new_page_ids, (array) bp_core_get_directory_page_ids( 'all' ) );
bp_core_update_directory_page_ids( $page_ids );
}
/**
* Add illegal blog names to WP so that root components will not conflict with blog names on a subdirectory installation.
*
* For example, it would stop someone creating a blog with the slug "groups".
*
* @todo Deprecate?
*/
function bp_core_add_illegal_names() {
update_site_option( 'illegal_names', get_site_option( 'illegal_names' ), array() );
}
/**
* Determine whether BuddyPress should register the bp-themes directory.
*
* @since BuddyPress (1.9.0)
*
* @return bool True if bp-themes should be registered, false otherwise.
*/
function bp_do_register_theme_directory() {
// If bp-default exists in another theme directory, bail.
// This ensures that the version of bp-default in the regular themes
// directory will always take precedence, as part of a migration away
// from the version packaged with BuddyPress
foreach ( array_values( (array) $GLOBALS['wp_theme_directories'] ) as $directory ) {
if ( is_dir( $directory . '/bp-default' ) ) {
return false;
}
}
// If the current theme is bp-default (or a bp-default child), BP
// should register its directory
$register = 'bp-default' === get_stylesheet() || 'bp-default' === get_template();
// Legacy sites continue to have the theme registered
if ( empty( $register ) && ( 1 == get_site_option( '_bp_retain_bp_default' ) ) ) {
$register = true;
}
return apply_filters( 'bp_do_register_theme_directory', $register );
}
/** URI ***********************************************************************/
/**
* Return the domain for the root blog.
*
* eg: http://example.com OR https://example.com
*
* @uses get_blog_option() WordPress function to fetch blog meta.
*
* @return string The domain URL for the blog.
*/
function bp_core_get_root_domain() {
$domain = get_home_url( bp_get_root_blog_id() );
return apply_filters( 'bp_core_get_root_domain', $domain );
}
/**
* Perform a status-safe wp_redirect() that is compatible with BP's URI parser.
*
* @uses wp_safe_redirect()
*
* @param string $location The redirect URL.
* @param int $status Optional. The numeric code to give in the redirect
* headers. Default: 302.
*/
function bp_core_redirect( $location = '', $status = 302 ) {
// On some setups, passing the value of wp_get_referer() may result in an
// empty value for $location, which results in an error. Ensure that we
// have a valid URL.
if ( empty( $location ) ) {
$location = bp_get_root_domain();
}
// Make sure we don't call status_header() in bp_core_do_catch_uri() as this
// conflicts with wp_redirect() and wp_safe_redirect().
buddypress()->no_status_set = true;
wp_safe_redirect( $location, $status );
die;
}
/**
* Return the referrer URL without the http(s)://
*
* @return string The referrer URL.
*/
function bp_core_referrer() {
$referer = explode( '/', wp_get_referer() );
unset( $referer[0], $referer[1], $referer[2] );
return implode( '/', $referer );
}
/**
* Get the path of of the current site.
*
* @global object $current_site
*
* @return string URL to the current site.
*/
function bp_core_get_site_path() {
global $current_site;
if ( is_multisite() ) {
$site_path = $current_site->path;
} else {
$site_path = (array) explode( '/', home_url() );
if ( count( $site_path ) < 2 ) {
$site_path = '/';
} else {
// Unset the first three segments (http(s)://example.com part)
unset( $site_path[0] );
unset( $site_path[1] );
unset( $site_path[2] );
if ( !count( $site_path ) ) {
$site_path = '/';
} else {
$site_path = '/' . implode( '/', $site_path ) . '/';
}
}
}
return apply_filters( 'bp_core_get_site_path', $site_path );
}
/** Time **********************************************************************/
/**
* Get the current GMT time to save into the DB.
*
* @since BuddyPress (1.2.6)
*
* @param bool $gmt True to use GMT (rather than local) time. Default: true.
* @param string $type See the 'type' parameter in {@link current_time()}.
Default: 'mysql'.
* @return string Current time in 'Y-m-d h:i:s' format.
*/
function bp_core_current_time( $gmt = true, $type = 'mysql' ) {
return apply_filters( 'bp_core_current_time', current_time( $type, $gmt ) );
}
/**
* Get an English-language representation of the time elapsed since a given date.
*
* Based on function created by Dunstan Orchard - http://1976design.com
*
* This function will return an English representation of the time elapsed
* since a given date.
* eg: 2 hours and 50 minutes
* eg: 4 days
* eg: 4 weeks and 6 days
*
* Note that fractions of minutes are not represented in the return string. So
* an interval of 3 minutes will be represented by "3 minutes ago", as will an
* interval of 3 minutes 59 seconds.
*
* @uses apply_filters() Filter 'bp_core_time_since_pre' to bypass BP's calculations.
* @uses apply_filters() Filter 'bp_core_time_since' to modify BP's calculations.
*
* @param int|string $older_date The earlier time from which you're calculating
* the time elapsed. Enter either as an integer Unix timestamp, or as a
* date string of the format 'Y-m-d h:i:s'.
* @param int $newer_date Optional. Unix timestamp of date to compare older
* date to. Default: false (current time).
* @return string String representing the time since the older date, eg
* "2 hours and 50 minutes".
*/
function bp_core_time_since( $older_date, $newer_date = false ) {
// Use this filter to bypass BuddyPress's time_since calculations
$pre_value = apply_filters( 'bp_core_time_since_pre', false, $older_date, $newer_date );
if ( false !== $pre_value ) {
return $pre_value;
}
// Setup the strings
$unknown_text = apply_filters( 'bp_core_time_since_unknown_text', __( 'sometime', 'buddypress' ) );
$right_now_text = apply_filters( 'bp_core_time_since_right_now_text', __( 'right now', 'buddypress' ) );
$ago_text = apply_filters( 'bp_core_time_since_ago_text', __( '%s ago', 'buddypress' ) );
// array of time period chunks
$chunks = array(
YEAR_IN_SECONDS,
30 * DAY_IN_SECONDS,
WEEK_IN_SECONDS,
DAY_IN_SECONDS,
HOUR_IN_SECONDS,
MINUTE_IN_SECONDS,
1
);
if ( !empty( $older_date ) && !is_numeric( $older_date ) ) {
$time_chunks = explode( ':', str_replace( ' ', ':', $older_date ) );
$date_chunks = explode( '-', str_replace( ' ', '-', $older_date ) );
$older_date = gmmktime( (int) $time_chunks[1], (int) $time_chunks[2], (int) $time_chunks[3], (int) $date_chunks[1], (int) $date_chunks[2], (int) $date_chunks[0] );
}
/**
* $newer_date will equal false if we want to know the time elapsed between
* a date and the current time. $newer_date will have a value if we want to
* work out time elapsed between two known dates.
*/
$newer_date = ( !$newer_date ) ? bp_core_current_time( true, 'timestamp' ) : $newer_date;
// Difference in seconds
$since = $newer_date - $older_date;
// Something went wrong with date calculation and we ended up with a negative date.
if ( 0 > $since ) {
$output = $unknown_text;
/**
* We only want to output two chunks of time here, eg:
* x years, xx months
* x days, xx hours
* so there's only two bits of calculation below:
*/
} else {
// Step one: the first chunk
for ( $i = 0, $j = count( $chunks ); $i < $j; ++$i ) {
$seconds = $chunks[$i];
// Finding the biggest chunk (if the chunk fits, break)
$count = floor( $since / $seconds );
if ( 0 != $count ) {
break;
}
}
// If $i iterates all the way to $j, then the event happened 0 seconds ago
if ( !isset( $chunks[$i] ) ) {
$output = $right_now_text;