$option`, refers to the option name.
*
* @since 2.9.0 As "update_site_option_{$key}"
* @since 3.0.0
* @since 4.7.0 The `$network_id` parameter was added.
*
* @param string $option Name of the network option.
* @param mixed $value Current value of the network option.
* @param mixed $old_value Old value of the network option.
* @param int $network_id ID of the network.
*/
do_action( "update_site_option_{$option}", $option, $value, $old_value, $network_id );
/**
* Fires after the value of a network option has been successfully updated.
*
* @since 3.0.0
* @since 4.7.0 The `$network_id` parameter was added.
*
* @param string $option Name of the network option.
* @param mixed $value Current value of the network option.
* @param mixed $old_value Old value of the network option.
* @param int $network_id ID of the network.
*/
do_action( 'update_site_option', $option, $value, $old_value, $network_id );
return true;
}
return false;
}
/**
* Deletes a site transient.
*
* @since 2.9.0
*
* @param string $transient Transient name. Expected to not be SQL-escaped.
* @return bool True if the transient was deleted, false otherwise.
*/
function delete_site_transient( $transient ) {
/**
* Fires immediately before a specific site transient is deleted.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* @since 3.0.0
*
* @param string $transient Transient name.
*/
do_action( "delete_site_transient_{$transient}", $transient );
if ( wp_using_ext_object_cache() || wp_installing() ) {
$result = wp_cache_delete( $transient, 'site-transient' );
} else {
$option_timeout = '_site_transient_timeout_' . $transient;
$option = '_site_transient_' . $transient;
$result = delete_site_option( $option );
if ( $result ) {
delete_site_option( $option_timeout );
}
}
if ( $result ) {
/**
* Fires after a transient is deleted.
*
* @since 3.0.0
*
* @param string $transient Deleted transient name.
*/
do_action( 'deleted_site_transient', $transient );
}
return $result;
}
/**
* Retrieves the value of a site transient.
*
* If the transient does not exist, does not have a value, or has expired,
* then the return value will be false.
*
* @since 2.9.0
*
* @see get_transient()
*
* @param string $transient Transient name. Expected to not be SQL-escaped.
* @return mixed Value of transient.
*/
function get_site_transient( $transient ) {
/**
* Filters the value of an existing site transient before it is retrieved.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* Returning a value other than boolean false will short-circuit retrieval and
* return that value instead.
*
* @since 2.9.0
* @since 4.4.0 The `$transient` parameter was added.
*
* @param mixed $pre_site_transient The default value to return if the site transient does not exist.
* Any value other than false will short-circuit the retrieval
* of the transient, and return that value.
* @param string $transient Transient name.
*/
$pre = apply_filters( "pre_site_transient_{$transient}", false, $transient );
if ( false !== $pre ) {
return $pre;
}
if ( wp_using_ext_object_cache() || wp_installing() ) {
$value = wp_cache_get( $transient, 'site-transient' );
} else {
// Core transients that do not have a timeout. Listed here so querying timeouts can be avoided.
$no_timeout = array( 'update_core', 'update_plugins', 'update_themes' );
$transient_option = '_site_transient_' . $transient;
if ( ! in_array( $transient, $no_timeout, true ) ) {
$transient_timeout = '_site_transient_timeout_' . $transient;
wp_prime_site_option_caches( array( $transient_option, $transient_timeout ) );
$timeout = get_site_option( $transient_timeout );
if ( false !== $timeout && $timeout < time() ) {
delete_site_option( $transient_option );
delete_site_option( $transient_timeout );
$value = false;
}
}
if ( ! isset( $value ) ) {
$value = get_site_option( $transient_option );
}
}
/**
* Filters the value of an existing site transient.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* @since 2.9.0
* @since 4.4.0 The `$transient` parameter was added.
*
* @param mixed $value Value of site transient.
* @param string $transient Transient name.
*/
return apply_filters( "site_transient_{$transient}", $value, $transient );
}
/**
* Sets/updates the value of a site transient.
*
* You do not need to serialize values. If the value needs to be serialized,
* then it will be serialized before it is set.
*
* @since 2.9.0
*
* @see set_transient()
*
* @param string $transient Transient name. Expected to not be SQL-escaped. Must be
* 167 characters or fewer in length.
* @param mixed $value Transient value. Expected to not be SQL-escaped.
* @param int $expiration Optional. Time until expiration in seconds. Default 0 (no expiration).
* @return bool True if the value was set, false otherwise.
*/
function set_site_transient( $transient, $value, $expiration = 0 ) {
/**
* Filters the value of a specific site transient before it is set.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* @since 3.0.0
* @since 4.4.0 The `$transient` parameter was added.
*
* @param mixed $value New value of site transient.
* @param string $transient Transient name.
*/
$value = apply_filters( "pre_set_site_transient_{$transient}", $value, $transient );
$expiration = (int) $expiration;
/**
* Filters the expiration for a site transient before its value is set.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* @since 4.4.0
*
* @param int $expiration Time until expiration in seconds. Use 0 for no expiration.
* @param mixed $value New value of site transient.
* @param string $transient Transient name.
*/
$expiration = apply_filters( "expiration_of_site_transient_{$transient}", $expiration, $value, $transient );
if ( wp_using_ext_object_cache() || wp_installing() ) {
$result = wp_cache_set( $transient, $value, 'site-transient', $expiration );
} else {
$transient_timeout = '_site_transient_timeout_' . $transient;
$option = '_site_transient_' . $transient;
wp_prime_site_option_caches( array( $option, $transient_timeout ) );
if ( false === get_site_option( $option ) ) {
if ( $expiration ) {
add_site_option( $transient_timeout, time() + $expiration );
}
$result = add_site_option( $option, $value );
} else {
if ( $expiration ) {
update_site_option( $transient_timeout, time() + $expiration );
}
$result = update_site_option( $option, $value );
}
}
if ( $result ) {
/**
* Fires after the value for a specific site transient has been set.
*
* The dynamic portion of the hook name, `$transient`, refers to the transient name.
*
* @since 3.0.0
* @since 4.4.0 The `$transient` parameter was added
*
* @param mixed $value Site transient value.
* @param int $expiration Time until expiration in seconds.
* @param string $transient Transient name.
*/
do_action( "set_site_transient_{$transient}", $value, $expiration, $transient );
/**
* Fires after the value for a site transient has been set.
*
* @since 3.0.0
*
* @param string $transient The name of the site transient.
* @param mixed $value Site transient value.
* @param int $expiration Time until expiration in seconds.
*/
do_action( 'setted_site_transient', $transient, $value, $expiration );
}
return $result;
}
/**
* Registers default settings available in WordPress.
*
* The settings registered here are primarily useful for the REST API, so this
* does not encompass all settings available in WordPress.
*
* @since 4.7.0
* @since 6.0.1 The `show_on_front`, `page_on_front`, and `page_for_posts` options were added.
*/
function register_initial_settings() {
register_setting(
'general',
'blogname',
array(
'show_in_rest' => array(
'name' => 'title',
),
'type' => 'string',
'label' => __( 'Title' ),
'description' => __( 'Site title.' ),
)
);
register_setting(
'general',
'blogdescription',
array(
'show_in_rest' => array(
'name' => 'description',
),
'type' => 'string',
'label' => __( 'Tagline' ),
'description' => __( 'Site tagline.' ),
)
);
if ( ! is_multisite() ) {
register_setting(
'general',
'siteurl',
array(
'show_in_rest' => array(
'name' => 'url',
'schema' => array(
'format' => 'uri',
),
),
'type' => 'string',
'description' => __( 'Site URL.' ),
)
);
}
if ( ! is_multisite() ) {
register_setting(
'general',
'admin_email',
array(
'show_in_rest' => array(
'name' => 'email',
'schema' => array(
'format' => 'email',
),
),
'type' => 'string',
'description' => __( 'This address is used for admin purposes, like new user notification.' ),
)
);
}
register_setting(
'general',
'timezone_string',
array(
'show_in_rest' => array(
'name' => 'timezone',
),
'type' => 'string',
'description' => __( 'A city in the same timezone as you.' ),
)
);
register_setting(
'general',
'date_format',
array(
'show_in_rest' => true,
'type' => 'string',
'description' => __( 'A date format for all date strings.' ),
)
);
register_setting(
'general',
'time_format',
array(
'show_in_rest' => true,
'type' => 'string',
'description' => __( 'A time format for all time strings.' ),
)
);
register_setting(
'general',
'start_of_week',
array(
'show_in_rest' => true,
'type' => 'integer',
'description' => __( 'A day number of the week that the week should start on.' ),
)
);
register_setting(
'general',
'WPLANG',
array(
'show_in_rest' => array(
'name' => 'language',
),
'type' => 'string',
'description' => __( 'WordPress locale code.' ),
'default' => 'en_US',
)
);
register_setting(
'writing',
'use_smilies',
array(
'show_in_rest' => true,
'type' => 'boolean',
'description' => __( 'Convert emoticons like :-) and :-P to graphics on display.' ),
'default' => true,
)
);
register_setting(
'writing',
'default_category',
array(
'show_in_rest' => true,
'type' => 'integer',
'description' => __( 'Default post category.' ),
)
);
register_setting(
'writing',
'default_post_format',
array(
'show_in_rest' => true,
'type' => 'string',
'description' => __( 'Default post format.' ),
)
);
register_setting(
'reading',
'posts_per_page',
array(
'show_in_rest' => true,
'type' => 'integer',
'label' => __( 'Maximum posts per page' ),
'description' => __( 'Blog pages show at most.' ),
'default' => 10,
)
);
register_setting(
'reading',
'show_on_front',
array(
'show_in_rest' => true,
'type' => 'string',
'label' => __( 'Show on front' ),
'description' => __( 'What to show on the front page' ),
)
);
register_setting(
'reading',
'page_on_front',
array(
'show_in_rest' => true,
'type' => 'integer',
'label' => __( 'Page on front' ),
'description' => __( 'The ID of the page that should be displayed on the front page' ),
)
);
register_setting(
'reading',
'page_for_posts',
array(
'show_in_rest' => true,
'type' => 'integer',
'description' => __( 'The ID of the page that should display the latest posts' ),
)
);
register_setting(
'discussion',
'default_ping_status',
array(
'show_in_rest' => array(
'schema' => array(
'enum' => array( 'open', 'closed' ),
),
),
'type' => 'string',
'description' => __( 'Allow link notifications from other blogs (pingbacks and trackbacks) on new articles.' ),
)
);
register_setting(
'discussion',
'default_comment_status',
array(
'show_in_rest' => array(
'schema' => array(
'enum' => array( 'open', 'closed' ),
),
),
'type' => 'string',
'label' => __( 'Allow comments on new posts' ),
'description' => __( 'Allow people to submit comments on new posts.' ),
)
);
}
/**
* Registers a setting and its data.
*
* @since 2.7.0
* @since 3.0.0 The `misc` option group was deprecated.
* @since 3.5.0 The `privacy` option group was deprecated.
* @since 4.7.0 `$args` can be passed to set flags on the setting, similar to `register_meta()`.
* @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`.
* Please consider writing more inclusive code.
* @since 6.6.0 Added the `label` argument.
*
* @global array $new_allowed_options
* @global array $wp_registered_settings
*
* @param string $option_group A settings group name. Should correspond to an allowed option key name.
* Default allowed option key names include 'general', 'discussion', 'media',
* 'reading', 'writing', and 'options'.
* @param string $option_name The name of an option to sanitize and save.
* @param array $args {
* Data used to describe the setting when registered.
*
* @type string $type The type of data associated with this setting.
* Valid values are 'string', 'boolean', 'integer', 'number', 'array', and 'object'.
* @type string $label A label of the data attached to this setting.
* @type string $description A description of the data attached to this setting.
* @type callable $sanitize_callback A callback function that sanitizes the option's value.
* @type bool|array $show_in_rest Whether data associated with this setting should be included in the REST API.
* When registering complex settings, this argument may optionally be an
* array with a 'schema' key.
* @type mixed $default Default value when calling `get_option()`.
* }
*/
function register_setting( $option_group, $option_name, $args = array() ) {
global $new_allowed_options, $wp_registered_settings;
/*
* In 5.5.0, the `$new_whitelist_options` global variable was renamed to `$new_allowed_options`.
* Please consider writing more inclusive code.
*/
$GLOBALS['new_whitelist_options'] = &$new_allowed_options;
$defaults = array(
'type' => 'string',
'group' => $option_group,
'label' => '',
'description' => '',
'sanitize_callback' => null,
'show_in_rest' => false,
);
// Back-compat: old sanitize callback is added.
if ( is_callable( $args ) ) {
$args = array(
'sanitize_callback' => $args,
);
}
/**
* Filters the registration arguments when registering a setting.
*
* @since 4.7.0
*
* @param array $args Array of setting registration arguments.
* @param array $defaults Array of default arguments.
* @param string $option_group Setting group.
* @param string $option_name Setting name.
*/
$args = apply_filters( 'register_setting_args', $args, $defaults, $option_group, $option_name );
$args = wp_parse_args( $args, $defaults );
// Require an item schema when registering settings with an array type.
if ( false !== $args['show_in_rest'] && 'array' === $args['type'] && ( ! is_array( $args['show_in_rest'] ) || ! isset( $args['show_in_rest']['schema']['items'] ) ) ) {
_doing_it_wrong( __FUNCTION__, __( 'When registering an "array" setting to show in the REST API, you must specify the schema for each array item in "show_in_rest.schema.items".' ), '5.4.0' );
}
if ( ! is_array( $wp_registered_settings ) ) {
$wp_registered_settings = array();
}
if ( 'misc' === $option_group ) {
_deprecated_argument(
__FUNCTION__,
'3.0.0',
sprintf(
/* translators: %s: misc */
__( 'The "%s" options group has been removed. Use another settings group.' ),
'misc'
)
);
$option_group = 'general';
}
if ( 'privacy' === $option_group ) {
_deprecated_argument(
__FUNCTION__,
'3.5.0',
sprintf(
/* translators: %s: privacy */
__( 'The "%s" options group has been removed. Use another settings group.' ),
'privacy'
)
);
$option_group = 'reading';
}
$new_allowed_options[ $option_group ][] = $option_name;
if ( ! empty( $args['sanitize_callback'] ) ) {
add_filter( "sanitize_option_{$option_name}", $args['sanitize_callback'] );
}
if ( array_key_exists( 'default', $args ) ) {
add_filter( "default_option_{$option_name}", 'filter_default_option', 10, 3 );
}
/**
* Fires immediately before the setting is registered but after its filters are in place.
*
* @since 5.5.0
*
* @param string $option_group Setting group.
* @param string $option_name Setting name.
* @param array $args Array of setting registration arguments.
*/
do_action( 'register_setting', $option_group, $option_name, $args );
$wp_registered_settings[ $option_name ] = $args;
}
/**
* Unregisters a setting.
*
* @since 2.7.0
* @since 4.7.0 `$sanitize_callback` was deprecated. The callback from `register_setting()` is now used instead.
* @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`.
* Please consider writing more inclusive code.
*
* @global array $new_allowed_options
* @global array $wp_registered_settings
*
* @param string $option_group The settings group name used during registration.
* @param string $option_name The name of the option to unregister.
* @param callable $deprecated Optional. Deprecated.
*/
function unregister_setting( $option_group, $option_name, $deprecated = '' ) {
global $new_allowed_options, $wp_registered_settings;
/*
* In 5.5.0, the `$new_whitelist_options` global variable was renamed to `$new_allowed_options`.
* Please consider writing more inclusive code.
*/
$GLOBALS['new_whitelist_options'] = &$new_allowed_options;
if ( 'misc' === $option_group ) {
_deprecated_argument(
__FUNCTION__,
'3.0.0',
sprintf(
/* translators: %s: misc */
__( 'The "%s" options group has been removed. Use another settings group.' ),
'misc'
)
);
$option_group = 'general';
}
if ( 'privacy' === $option_group ) {
_deprecated_argument(
__FUNCTION__,
'3.5.0',
sprintf(
/* translators: %s: privacy */
__( 'The "%s" options group has been removed. Use another settings group.' ),
'privacy'
)
);
$option_group = 'reading';
}
$pos = false;
if ( isset( $new_allowed_options[ $option_group ] ) ) {
$pos = array_search( $option_name, (array) $new_allowed_options[ $option_group ], true );
}
if ( false !== $pos ) {
unset( $new_allowed_options[ $option_group ][ $pos ] );
}
if ( '' !== $deprecated ) {
_deprecated_argument(
__FUNCTION__,
'4.7.0',
sprintf(
/* translators: 1: $sanitize_callback, 2: register_setting() */
__( '%1$s is deprecated. The callback from %2$s is used instead.' ),
'$sanitize_callback',
'register_setting()'
)
);
remove_filter( "sanitize_option_{$option_name}", $deprecated );
}
if ( isset( $wp_registered_settings[ $option_name ] ) ) {
// Remove the sanitize callback if one was set during registration.
if ( ! empty( $wp_registered_settings[ $option_name ]['sanitize_callback'] ) ) {
remove_filter( "sanitize_option_{$option_name}", $wp_registered_settings[ $option_name ]['sanitize_callback'] );
}
// Remove the default filter if a default was provided during registration.
if ( array_key_exists( 'default', $wp_registered_settings[ $option_name ] ) ) {
remove_filter( "default_option_{$option_name}", 'filter_default_option', 10 );
}
/**
* Fires immediately before the setting is unregistered and after its filters have been removed.
*
* @since 5.5.0
*
* @param string $option_group Setting group.
* @param string $option_name Setting name.
*/
do_action( 'unregister_setting', $option_group, $option_name );
unset( $wp_registered_settings[ $option_name ] );
}
}
/**
* Retrieves an array of registered settings.
*
* @since 4.7.0
*
* @global array $wp_registered_settings
*
* @return array List of registered settings, keyed by option name.
*/
function get_registered_settings() {
global $wp_registered_settings;
if ( ! is_array( $wp_registered_settings ) ) {
return array();
}
return $wp_registered_settings;
}
/**
* Filters the default value for the option.
*
* For settings which register a default setting in `register_setting()`, this
* function is added as a filter to `default_option_{$option}`.
*
* @since 4.7.0
*
* @param mixed $default_value Existing default value to return.
* @param string $option Option name.
* @param bool $passed_default Was `get_option()` passed a default value?
* @return mixed Filtered default value.
*/
function filter_default_option( $default_value, $option, $passed_default ) {
if ( $passed_default ) {
return $default_value;
}
$registered = get_registered_settings();
if ( empty( $registered[ $option ] ) ) {
return $default_value;
}
return $registered[ $option ]['default'];
}
/**
* Returns the values that trigger autoloading from the options table.
*
* @since 6.6.0
*
* @return string[] The values that trigger autoloading.
*/
function wp_autoload_values_to_autoload() {
$autoload_values = array( 'yes', 'on', 'auto-on', 'auto' );
/**
* Filters the autoload values that should be considered for autoloading from the options table.
*
* The filter can only be used to remove autoload values from the default list.
*
* @since 6.6.0
*
* @param string[] $autoload_values Autoload values used to autoload option.
* Default list contains 'yes', 'on', 'auto-on', and 'auto'.
*/
$filtered_values = apply_filters( 'wp_autoload_values_to_autoload', $autoload_values );
return array_intersect( $filtered_values, $autoload_values );
}