* @since 2.5.0
*
* @global wpdb $wpdb The WordPress database class.
*/
function require_wp_db() {
global $wpdb;
require_once( ABSPATH . WPINC . '/wp-db.php' );
if ( file_exists( WP_CONTENT_DIR . '/db.php' ) )
require_once( WP_CONTENT_DIR . '/db.php' );
if ( isset( $wpdb ) ) {
return;
}
$dbuser = defined( 'DB_USER' ) ? DB_USER : '';
$dbpassword = defined( 'DB_PASSWORD' ) ? DB_PASSWORD : '';
$dbname = defined( 'DB_NAME' ) ? DB_NAME : '';
$dbhost = defined( 'DB_HOST' ) ? DB_HOST : '';
$wpdb = new wpdb( $dbuser, $dbpassword, $dbname, $dbhost );
}
/**
* Set the database table prefix and the format specifiers for database
* table columns.
*
* Columns not listed here default to `%s`.
*
* @since 3.0.0
* @access private
*
* @global wpdb $wpdb The WordPress database class.
* @global string $table_prefix The database table prefix.
*/
function wp_set_wpdb_vars() {
global $wpdb, $table_prefix;
if ( !empty( $wpdb->error ) )
dead_db();
$wpdb->field_types = array( 'post_author' => '%d', 'post_parent' => '%d', 'menu_order' => '%d', 'term_id' => '%d', 'term_group' => '%d', 'term_taxonomy_id' => '%d',
'parent' => '%d', 'count' => '%d','object_id' => '%d', 'term_order' => '%d', 'ID' => '%d', 'comment_ID' => '%d', 'comment_post_ID' => '%d', 'comment_parent' => '%d',
'user_id' => '%d', 'link_id' => '%d', 'link_owner' => '%d', 'link_rating' => '%d', 'option_id' => '%d', 'blog_id' => '%d', 'meta_id' => '%d', 'post_id' => '%d',
'user_status' => '%d', 'umeta_id' => '%d', 'comment_karma' => '%d', 'comment_count' => '%d',
// multisite:
'active' => '%d', 'cat_id' => '%d', 'deleted' => '%d', 'lang_id' => '%d', 'mature' => '%d', 'public' => '%d', 'site_id' => '%d', 'spam' => '%d',
);
$prefix = $wpdb->set_prefix( $table_prefix );
if ( is_wp_error( $prefix ) ) {
wp_load_translations_early();
wp_die(
/* translators: 1: $table_prefix 2: wp-config.php */
sprintf( __( 'ERROR: %1$s in %2$s can only contain numbers, letters, and underscores.' ),
'$table_prefix',
'wp-config.php'
)
);
}
}
/**
* Toggle `$_wp_using_ext_object_cache` on and off without directly
* touching global.
*
* @since 3.7.0
*
* @global bool $_wp_using_ext_object_cache
*
* @param bool $using Whether external object cache is being used.
* @return bool The current 'using' setting.
*/
function wp_using_ext_object_cache( $using = null ) {
global $_wp_using_ext_object_cache;
$current_using = $_wp_using_ext_object_cache;
if ( null !== $using )
$_wp_using_ext_object_cache = $using;
return $current_using;
}
/**
* Start the WordPress object cache.
*
* If an object-cache.php file exists in the wp-content directory,
* it uses that drop-in as an external object cache.
*
* @since 3.0.0
* @access private
*
* @global array $wp_filter Stores all of the filters.
*/
function wp_start_object_cache() {
global $wp_filter;
$first_init = false;
if ( ! function_exists( 'wp_cache_init' ) ) {
if ( file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
require_once ( WP_CONTENT_DIR . '/object-cache.php' );
if ( function_exists( 'wp_cache_init' ) ) {
wp_using_ext_object_cache( true );
}
// Re-initialize any hooks added manually by object-cache.php
if ( $wp_filter ) {
$wp_filter = WP_Hook::build_preinitialized_hooks( $wp_filter );
}
}
$first_init = true;
} elseif ( ! wp_using_ext_object_cache() && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
/*
* Sometimes advanced-cache.php can load object-cache.php before
* it is loaded here. This breaks the function_exists check above
* and can result in `$_wp_using_ext_object_cache` being set
* incorrectly. Double check if an external cache exists.
*/
wp_using_ext_object_cache( true );
}
if ( ! wp_using_ext_object_cache() ) {
require_once ( ABSPATH . WPINC . '/cache.php' );
}
/*
* If cache supports reset, reset instead of init if already
* initialized. Reset signals to the cache that global IDs
* have changed and it may need to update keys and cleanup caches.
*/
if ( ! $first_init && function_exists( 'wp_cache_switch_to_blog' ) ) {
wp_cache_switch_to_blog( get_current_blog_id() );
} elseif ( function_exists( 'wp_cache_init' ) ) {
wp_cache_init();
}
if ( function_exists( 'wp_cache_add_global_groups' ) ) {
wp_cache_add_global_groups( array( 'users', 'userlogins', 'usermeta', 'user_meta', 'useremail', 'userslugs', 'site-transient', 'site-options', 'blog-lookup', 'blog-details', 'site-details', 'rss', 'global-posts', 'blog-id-cache', 'networks', 'sites' ) );
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins' ) );
}
}
/**
* Redirect to the installer if WordPress is not installed.
*
* Dies with an error message when Multisite is enabled.
*
* @since 3.0.0
* @access private
*/
function wp_not_installed() {
if ( is_multisite() ) {
if ( ! is_blog_installed() && ! wp_installing() ) {
nocache_headers();
wp_die( __( 'The site you have requested is not installed properly. Please contact the system administrator.' ) );
}
} elseif ( ! is_blog_installed() && ! wp_installing() ) {
nocache_headers();
require( ABSPATH . WPINC . '/kses.php' );
require( ABSPATH . WPINC . '/pluggable.php' );
require( ABSPATH . WPINC . '/formatting.php' );
$link = wp_guess_url() . '/wp-admin/install.php';
wp_redirect( $link );
die();
}
}
/**
* Retrieve an array of must-use plugin files.
*
* The default directory is wp-content/mu-plugins. To change the default
* directory manually, define `WPMU_PLUGIN_DIR` and `WPMU_PLUGIN_URL`
* in wp-config.php.
*
* @since 3.0.0
* @access private
*
* @return array Files to include.
*/
function wp_get_mu_plugins() {
$mu_plugins = array();
if ( !is_dir( WPMU_PLUGIN_DIR ) )
return $mu_plugins;
if ( ! $dh = opendir( WPMU_PLUGIN_DIR ) )
return $mu_plugins;
while ( ( $plugin = readdir( $dh ) ) !== false ) {
if ( substr( $plugin, -4 ) == '.php' )
$mu_plugins[] = WPMU_PLUGIN_DIR . '/' . $plugin;
}
closedir( $dh );
sort( $mu_plugins );
return $mu_plugins;
}
/**
* Retrieve an array of active and valid plugin files.
*
* While upgrading or installing WordPress, no plugins are returned.
*
* The default directory is wp-content/plugins. To change the default
* directory manually, define `WP_PLUGIN_DIR` and `WP_PLUGIN_URL`
* in wp-config.php.
*
* @since 3.0.0
* @access private
*
* @return array Files.
*/
function wp_get_active_and_valid_plugins() {
$plugins = array();
$active_plugins = (array) get_option( 'active_plugins', array() );
// Check for hacks file if the option is enabled
if ( get_option( 'hack_file' ) && file_exists( ABSPATH . 'my-hacks.php' ) ) {
_deprecated_file( 'my-hacks.php', '1.5.0' );
array_unshift( $plugins, ABSPATH . 'my-hacks.php' );
}
if ( empty( $active_plugins ) || wp_installing() )
return $plugins;
$network_plugins = is_multisite() ? wp_get_active_network_plugins() : false;
foreach ( $active_plugins as $plugin ) {
if ( ! validate_file( $plugin ) // $plugin must validate as file
&& '.php' == substr( $plugin, -4 ) // $plugin must end with '.php'
&& file_exists( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist
// not already included as a network plugin
&& ( ! $network_plugins || ! in_array( WP_PLUGIN_DIR . '/' . $plugin, $network_plugins ) )
)
$plugins[] = WP_PLUGIN_DIR . '/' . $plugin;
}
return $plugins;
}
/**
* Set internal encoding.
*
* In most cases the default internal encoding is latin1, which is
* of no use, since we want to use the `mb_` functions for `utf-8` strings.
*
* @since 3.0.0
* @access private
*/
function wp_set_internal_encoding() {
if ( function_exists( 'mb_internal_encoding' ) ) {
$charset = get_option( 'blog_charset' );
if ( ! $charset || ! @mb_internal_encoding( $charset ) )
mb_internal_encoding( 'UTF-8' );
}
}
/**
* Add magic quotes to `$_GET`, `$_POST`, `$_COOKIE`, and `$_SERVER`.
*
* Also forces `$_REQUEST` to be `$_GET + $_POST`. If `$_SERVER`,
* `$_COOKIE`, or `$_ENV` are needed, use those superglobals directly.
*
* @since 3.0.0
* @access private
*/
function wp_magic_quotes() {
// If already slashed, strip.
if ( get_magic_quotes_gpc() ) {
$_GET = stripslashes_deep( $_GET );
$_POST = stripslashes_deep( $_POST );
$_COOKIE = stripslashes_deep( $_COOKIE );
}
// Escape with wpdb.
$_GET = add_magic_quotes( $_GET );
$_POST = add_magic_quotes( $_POST );
$_COOKIE = add_magic_quotes( $_COOKIE );
$_SERVER = add_magic_quotes( $_SERVER );
// Force REQUEST to be GET + POST.
$_REQUEST = array_merge( $_GET, $_POST );
}
/**
* Runs just before PHP shuts down execution.
*
* @since 1.2.0
* @access private
*/
function shutdown_action_hook() {
/**
* Fires just before PHP shuts down execution.
*
* @since 1.2.0
*/
do_action( 'shutdown' );
wp_cache_close();
}
/**
* Copy an object.
*
* @since 2.7.0
* @deprecated 3.2.0
*
* @param object $object The object to clone.
* @return object The cloned object.
*/
function wp_clone( $object ) {
// Use parens for clone to accommodate PHP 4. See #17880
return clone( $object );
}
/**
* Determines whether the current request is for an administrative interface page.
*
* Does not check if the user is an administrator; current_user_can()
* for checking roles and capabilities.
*
* 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 1.5.1
*
* @global WP_Screen $current_screen
*
* @return bool True if inside WordPress administration interface, false otherwise.
*/
function is_admin() {
if ( isset( $GLOBALS['current_screen'] ) )
return $GLOBALS['current_screen']->in_admin();
elseif ( defined( 'WP_ADMIN' ) )
return WP_ADMIN;
return false;
}
/**
* Whether the current request is for a site's admininstrative interface.
*
* e.g. `/wp-admin/`
*
* Does not check if the user is an administrator; current_user_can()
* for checking roles and capabilities.
*
* @since 3.1.0
*
* @global WP_Screen $current_screen
*
* @return bool True if inside WordPress blog administration pages.
*/
function is_blog_admin() {
if ( isset( $GLOBALS['current_screen'] ) )
return $GLOBALS['current_screen']->in_admin( 'site' );
elseif ( defined( 'WP_BLOG_ADMIN' ) )
return WP_BLOG_ADMIN;
return false;
}
/**
* Whether the current request is for the network administrative interface.
*
* e.g. `/wp-admin/network/`
*
* Does not check if the user is an administrator; current_user_can()
* for checking roles and capabilities.
*
* @since 3.1.0
*
* @global WP_Screen $current_screen
*
* @return bool True if inside WordPress network administration pages.
*/
function is_network_admin() {
if ( isset( $GLOBALS['current_screen'] ) )
return $GLOBALS['current_screen']->in_admin( 'network' );
elseif ( defined( 'WP_NETWORK_ADMIN' ) )
return WP_NETWORK_ADMIN;
return false;
}
/**
* Whether the current request is for a user admin screen.
*
* e.g. `/wp-admin/user/`
*
* Does not inform on whether the user is an admin! Use capability
* checks to tell if the user should be accessing a section or not
* current_user_can().
*
* @since 3.1.0
*
* @global WP_Screen $current_screen
*
* @return bool True if inside WordPress user administration pages.
*/
function is_user_admin() {
if ( isset( $GLOBALS['current_screen'] ) )
return $GLOBALS['current_screen']->in_admin( 'user' );
elseif ( defined( 'WP_USER_ADMIN' ) )
return WP_USER_ADMIN;
return false;
}
/**
* If Multisite is enabled.
*
* @since 3.0.0
*
* @return bool True if Multisite is enabled, false otherwise.
*/
function is_multisite() {
if ( defined( 'MULTISITE' ) )
return MULTISITE;
if ( defined( 'SUBDOMAIN_INSTALL' ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) )
return true;
return false;
}
/**
* Retrieve the current site ID.
*
* @since 3.1.0
*
* @global int $blog_id
*
* @return int Site ID.
*/
function get_current_blog_id() {
global $blog_id;
return absint($blog_id);
}
/**
* Retrieves the current network ID.
*
* @since 4.6.0
*
* @return int The ID of the current network.
*/
function get_current_network_id() {
if ( ! is_multisite() ) {
return 1;
}
$current_network = get_network();
if ( ! isset( $current_network->id ) ) {
return get_main_network_id();
}
return absint( $current_network->id );
}
/**
* Attempt an early load of translations.
*
* Used for errors encountered during the initial loading process, before
* the locale has been properly detected and loaded.
*
* Designed for unusual load sequences (like setup-config.php) or for when
* the script will then terminate with an error, otherwise there is a risk
* that a file can be double-included.
*
* @since 3.4.0
* @access private
*
* @global WP_Locale $wp_locale The WordPress date and time locale object.
*
* @staticvar bool $loaded
*/
function wp_load_translations_early() {
global $wp_locale;
static $loaded = false;
if ( $loaded )
return;
$loaded = true;
if ( function_exists( 'did_action' ) && did_action( 'init' ) )
return;
// We need $wp_local_package
require ABSPATH . WPINC . '/version.php';
// Translation and localization
require_once ABSPATH . WPINC . '/pomo/mo.php';
require_once ABSPATH . WPINC . '/l10n.php';
require_once ABSPATH . WPINC . '/class-wp-locale.php';
require_once ABSPATH . WPINC . '/class-wp-locale-switcher.php';
// General libraries
require_once ABSPATH . WPINC . '/plugin.php';
$locales = $locations = array();
while ( true ) {
if ( defined( 'WPLANG' ) ) {
if ( '' == WPLANG )
break;
$locales[] = WPLANG;
}
if ( isset( $wp_local_package ) )
$locales[] = $wp_local_package;
if ( ! $locales )
break;
if ( defined( 'WP_LANG_DIR' ) && @is_dir( WP_LANG_DIR ) )
$locations[] = WP_LANG_DIR;
if ( defined( 'WP_CONTENT_DIR' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) )
$locations[] = WP_CONTENT_DIR . '/languages';
if ( @is_dir( ABSPATH . 'wp-content/languages' ) )
$locations[] = ABSPATH . 'wp-content/languages';
if ( @is_dir( ABSPATH . WPINC . '/languages' ) )
$locations[] = ABSPATH . WPINC . '/languages';
if ( ! $locations )
break;
$locations = array_unique( $locations );
foreach ( $locales as $locale ) {
foreach ( $locations as $location ) {
if ( file_exists( $location . '/' . $locale . '.mo' ) ) {
load_textdomain( 'default', $location . '/' . $locale . '.mo' );
if ( defined( 'WP_SETUP_CONFIG' ) && file_exists( $location . '/admin-' . $locale . '.mo' ) )
load_textdomain( 'default', $location . '/admin-' . $locale . '.mo' );
break 2;
}
}
}
break;
}
$wp_locale = new WP_Locale();
}
/**
* Check or set whether WordPress is in "installation" mode.
*
* If the `WP_INSTALLING` constant is defined during the bootstrap, `wp_installing()` will default to `true`.
*
* @since 4.4.0
*
* @staticvar bool $installing
*
* @param bool $is_installing Optional. True to set WP into Installing mode, false to turn Installing mode off.
* Omit this parameter if you only want to fetch the current status.
* @return bool True if WP is installing, otherwise false. When a `$is_installing` is passed, the function will
* report whether WP was in installing mode prior to the change to `$is_installing`.
*/
function wp_installing( $is_installing = null ) {
static $installing = null;
// Support for the `WP_INSTALLING` constant, defined before WP is loaded.
if ( is_null( $installing ) ) {
$installing = defined( 'WP_INSTALLING' ) && WP_INSTALLING;
}
if ( ! is_null( $is_installing ) ) {
$old_installing = $installing;
$installing = $is_installing;
return (bool) $old_installing;
}
return (bool) $installing;
}
/**
* Determines if SSL is used.
*
* @since 2.6.0
* @since 4.6.0 Moved from functions.php to load.php.
*
* @return bool True if SSL, otherwise false.
*/
function is_ssl() {
if ( isset( $_SERVER['HTTPS'] ) ) {
if ( 'on' == strtolower( $_SERVER['HTTPS'] ) ) {
return true;
}
if ( '1' == $_SERVER['HTTPS'] ) {
return true;
}
} elseif ( isset($_SERVER['SERVER_PORT'] ) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
return true;
}
return false;
}
/**
* Converts a shorthand byte value to an integer byte value.
*
* @since 2.3.0
* @since 4.6.0 Moved from media.php to load.php.
*
* @link https://secure.php.net/manual/en/function.ini-get.php
* @link https://secure.php.net/manual/en/faq.using.php#faq.using.shorthandbytes
*
* @param string $value A (PHP ini) byte value, either shorthand or ordinary.
* @return int An integer byte value.
*/
function wp_convert_hr_to_bytes( $value ) {
$value = strtolower( trim( $value ) );
$bytes = (int) $value;
if ( false !== strpos( $value, 'g' ) ) {
$bytes *= GB_IN_BYTES;
} elseif ( false !== strpos( $value, 'm' ) ) {
$bytes *= MB_IN_BYTES;
} elseif ( false !== strpos( $value, 'k' ) ) {
$bytes *= KB_IN_BYTES;
}
// Deal with large (float) values which run into the maximum integer size.
return min( $bytes, PHP_INT_MAX );
}
/**
* Determines whether a PHP ini value is changeable at runtime.
*
* @since 4.6.0
*
* @staticvar array $ini_all
*
* @link https://secure.php.net/manual/en/function.ini-get-all.php
*
* @param string $setting The name of the ini setting to check.
* @return bool True if the value is changeable at runtime. False otherwise.
*/
function wp_is_ini_value_changeable( $setting ) {
static $ini_all;
if ( ! isset( $ini_all ) ) {
$ini_all = false;
// Sometimes `ini_get_all()` is disabled via the `disable_functions` option for "security purposes".
if ( function_exists( 'ini_get_all' ) ) {
$ini_all = ini_get_all();
}
}
// Bit operator to workaround https://bugs.php.net/bug.php?id=44936 which changes access level to 63 in PHP 5.2.6 - 5.2.17.
if ( isset( $ini_all[ $setting ]['access'] ) && ( INI_ALL === ( $ini_all[ $setting ]['access'] & 7 ) || INI_USER === ( $ini_all[ $setting ]['access'] & 7 ) ) ) {
return true;
}
// If we were unable to retrieve the details, fail gracefully to assume it's changeable.
if ( ! is_array( $ini_all ) ) {
return true;
}
return false;
}
/**
* Determines whether the current request is a WordPress Ajax request.
*
* @since 4.7.0
*
* @return bool True if it's a WordPress Ajax request, false otherwise.
*/
function wp_doing_ajax() {
/**
* Filters whether the current request is a WordPress Ajax request.
*
* @since 4.7.0
*
* @param bool $wp_doing_ajax Whether the current request is a WordPress Ajax request.
*/
return apply_filters( 'wp_doing_ajax', defined( 'DOING_AJAX' ) && DOING_AJAX );
}
/**
* Determines whether the current request is a WordPress cron request.
*
* @since 4.8.0
*
* @return bool True if it's a WordPress cron request, false otherwise.
*/
function wp_doing_cron() {
/**
* Filters whether the current request is a WordPress cron request.
*
* @since 4.8.0
*
* @param bool $wp_doing_cron Whether the current request is a WordPress cron request.
*/
return apply_filters( 'wp_doing_cron', defined( 'DOING_CRON' ) && DOING_CRON );
}
/**
* Check whether variable is a WordPress Error.
*
* Returns true if $thing is an object of the WP_Error class.
*
* @since 2.1.0
*
* @param mixed $thing Check if unknown variable is a WP_Error object.
* @return bool True, if WP_Error. False, if not WP_Error.
*/
function is_wp_error( $thing ) {
return ( $thing instanceof WP_Error );
}
/**
* Determines whether file modifications are allowed.
*
* @since 4.8.0
*
* @param string $context The usage context.
* @return bool True if file modification is allowed, false otherwise.
*/
function wp_is_file_mod_allowed( $context ) {
/**
* Filters whether file modifications are allowed.
*
* @since 4.8.0
*
* @param bool $file_mod_allowed Whether file modifications are allowed.
* @param string $context The usage context.
*/
return apply_filters( 'file_mod_allowed', ! defined( 'DISALLOW_FILE_MODS' ) || ! DISALLOW_FILE_MODS, $context );
}
/**
* Start scraping edited file errors.
*
* @since 4.9.0
*/
function wp_start_scraping_edited_file_errors() {
if ( ! isset( $_REQUEST['wp_scrape_key'] ) || ! isset( $_REQUEST['wp_scrape_nonce'] ) ) {
return;
}
$key = substr( sanitize_key( wp_unslash( $_REQUEST['wp_scrape_key'] ) ), 0, 32 );
$nonce = wp_unslash( $_REQUEST['wp_scrape_nonce'] );
if ( get_transient( 'scrape_key_' . $key ) !== $nonce ) {
echo "###### wp_scraping_result_start:$key ######";
echo wp_json_encode( array(
'code' => 'scrape_nonce_failure',
'message' => __( 'Scrape nonce check failed. Please try again.' ),
) );
echo "###### wp_scraping_result_end:$key ######";
die();
}
register_shutdown_function( 'wp_finalize_scraping_edited_file_errors', $key );
}
/**
* Finalize scraping for edited file errors.
*
* @since 4.9.0
*
* @param string $scrape_key Scrape key.
*/
function wp_finalize_scraping_edited_file_errors( $scrape_key ) {
$error = error_get_last();
echo "\n###### wp_scraping_result_start:$scrape_key ######\n";
if ( ! empty( $error ) && in_array( $error['type'], array( E_CORE_ERROR, E_COMPILE_ERROR, E_ERROR, E_PARSE, E_USER_ERROR, E_RECOVERABLE_ERROR ), true ) ) {
$error = str_replace( ABSPATH, '', $error );
echo wp_json_encode( $error );
} else {
echo wp_json_encode( true );
}
echo "\n###### wp_scraping_result_end:$scrape_key ######\n";
}
/**
* Checks whether current request is a JSON request, or is expecting a JSON response.
*
* @since 5.0.0
*
* @return bool True if Accepts or Content-Type headers contain application/json, false otherwise.
*/
function wp_is_json_request() {
if ( isset( $_SERVER['HTTP_ACCEPT'] ) && false !== strpos( $_SERVER['HTTP_ACCEPT'], 'application/json' ) ) {
return true;
}
if ( isset( $_SERVER['CONTENT_TYPE'] ) && 'application/json' === $_SERVER['CONTENT_TYPE'] ) {
return true;
}
return false;
}
Fatal error: Uncaught Error: Call to undefined function wp_initial_constants() in /www_root/wp-settings.php:48
Stack trace:
#0 /www_root/wp-config.php(117): require_once()
#1 /www_root/wp-load.php(50): require_once('/www_root/wp-co...')
#2 /www_root/wp-login.php(12): require('/www_root/wp-lo...')
#3 {main}
thrown in /www_root/wp-settings.php on line 48