Checks WordPress version against the newest version.
Description
The WordPress version, PHP version, and locale is sent.
Checks against the WordPress server at api.wordpress.org. Will only check if WordPress isn’t installing.
Parameters
$extra_stats
arrayoptional- Extra statistics to report to the WordPress.org API.
Default:
array()
$force_check
booloptional- Whether to bypass the transient cache and force a fresh update check.
Defaults to false, true if $extra_stats is set.Default:
false
Source
function wp_version_check( $extra_stats = array(), $force_check = false ) {
global $wpdb, $wp_local_package;
if ( wp_installing() ) {
return;
}
$php_version = PHP_VERSION;
$current = get_site_transient( 'update_core' );
$translations = wp_get_installed_translations( 'core' );
// Invalidate the transient when $wp_version changes.
if ( is_object( $current ) && wp_get_wp_version() !== $current->version_checked ) {
$current = false;
}
if ( ! is_object( $current ) ) {
$current = new stdClass();
$current->updates = array();
$current->version_checked = wp_get_wp_version();
}
if ( ! empty( $extra_stats ) ) {
$force_check = true;
}
// Wait 1 minute between multiple version check requests.
$timeout = MINUTE_IN_SECONDS;
$time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
if ( ! $force_check && $time_not_changed ) {
return;
}
/**
* Filters the locale requested for WordPress core translations.
*
* @since 2.8.0
*
* @param string $locale Current locale.
*/
$locale = apply_filters( 'core_version_check_locale', get_locale() );
// Update last_checked for current to prevent multiple blocking requests if request hangs.
$current->last_checked = time();
set_site_transient( 'update_core', $current );
if ( method_exists( $wpdb, 'db_server_info' ) ) {
$mysql_version = $wpdb->db_server_info();
} elseif ( method_exists( $wpdb, 'db_version' ) ) {
$mysql_version = preg_replace( '/[^0-9.].*/', '', $wpdb->db_version() );
} else {
$mysql_version = 'N/A';
}
if ( is_multisite() ) {
$num_blogs = get_blog_count();
$wp_install = network_site_url();
$multisite_enabled = 1;
} else {
$multisite_enabled = 0;
$num_blogs = 1;
$wp_install = home_url( '/' );
}
$extensions = get_loaded_extensions();
sort( $extensions, SORT_STRING | SORT_FLAG_CASE );
$query = array(
'version' => wp_get_wp_version(),
'php' => $php_version,
'locale' => $locale,
'mysql' => $mysql_version,
'local_package' => isset( $wp_local_package ) ? $wp_local_package : '',
'blogs' => $num_blogs,
'users' => get_user_count(),
'multisite_enabled' => $multisite_enabled,
'initial_db_version' => get_site_option( 'initial_db_version' ),
'extensions' => array_combine( $extensions, array_map( 'phpversion', $extensions ) ),
'platform_flags' => array(
'os' => PHP_OS,
'bits' => PHP_INT_SIZE === 4 ? 32 : 64,
),
'image_support' => array(),
);
if ( function_exists( 'gd_info' ) ) {
$gd_info = gd_info();
// Filter to supported values.
$gd_info = array_filter( $gd_info );
// Add data for GD WebP, AVIF, HEIC and JPEG XL support.
$query['image_support']['gd'] = array_keys(
array_filter(
array(
'webp' => isset( $gd_info['WebP Support'] ),
'avif' => isset( $gd_info['AVIF Support'] ),
'heic' => isset( $gd_info['HEIC Support'] ),
'jxl' => isset( $gd_info['JXL Support'] ),
)
)
);
}
if ( class_exists( 'Imagick' ) ) {
// Add data for Imagick WebP, AVIF, HEIC and JPEG XL support.
$query['image_support']['imagick'] = array_keys(
array_filter(
array(
'webp' => ! empty( Imagick::queryFormats( 'WEBP' ) ),
'avif' => ! empty( Imagick::queryFormats( 'AVIF' ) ),
'heic' => ! empty( Imagick::queryFormats( 'HEIC' ) ),
'jxl' => ! empty( Imagick::queryFormats( 'JXL' ) ),
)
)
);
}
/**
* Filters the query arguments sent as part of the core version check.
*
* WARNING: Changing this data may result in your site not receiving security updates.
* Please exercise extreme caution.
*
* @since 4.9.0
*
* @param array $query {
* Version check query arguments.
*
* @type string $version WordPress version number.
* @type string $php PHP version number.
* @type string $locale The locale to retrieve updates for.
* @type string $mysql MySQL version number.
* @type string $local_package The value of the $wp_local_package global, when set.
* @type int $blogs Number of sites on this WordPress installation.
* @type int $users Number of users on this WordPress installation.
* @type int $multisite_enabled Whether this WordPress installation uses Multisite.
* @type int $initial_db_version Database version of WordPress at time of installation.
* }
*/
$query = apply_filters( 'core_version_check_query_args', $query );
$post_body = array(
'translations' => wp_json_encode( $translations ),
);
if ( is_array( $extra_stats ) ) {
$post_body = array_merge( $post_body, $extra_stats );
}
// Allow for WP_AUTO_UPDATE_CORE to specify beta/RC/development releases.
if ( defined( 'WP_AUTO_UPDATE_CORE' )
&& in_array( WP_AUTO_UPDATE_CORE, array( 'beta', 'rc', 'development', 'branch-development' ), true )
) {
$query['channel'] = WP_AUTO_UPDATE_CORE;
}
$url = 'https://api.wordpress.org/core/version-check/1.7/?' . http_build_query( $query, '', '&' );
$http_url = $url;
$ssl = wp_http_supports( array( 'ssl' ) );
if ( $ssl ) {
$url = set_url_scheme( $url, 'https' );
}
$doing_cron = wp_doing_cron();
$options = array(
'timeout' => $doing_cron ? 30 : 3,
'user-agent' => 'WordPress/' . wp_get_wp_version() . '; ' . home_url( '/' ),
'headers' => array(
'wp_install' => $wp_install,
'wp_blog' => home_url( '/' ),
),
'body' => $post_body,
);
$response = wp_remote_post( $url, $options );
if ( $ssl && is_wp_error( $response ) ) {
wp_trigger_error(
__FUNCTION__,
sprintf(
/* translators: %s: Support forums URL. */
__( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ),
__( 'https://wordpress.org/support/forums/' )
) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ),
headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE
);
$response = wp_remote_post( $http_url, $options );
}
if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) {
return;
}
$body = trim( wp_remote_retrieve_body( $response ) );
$body = json_decode( $body, true );
if ( ! is_array( $body ) || ! isset( $body['offers'] ) ) {
return;
}
$offers = $body['offers'];
foreach ( $offers as &$offer ) {
foreach ( $offer as $offer_key => $value ) {
if ( 'packages' === $offer_key ) {
$offer['packages'] = (object) array_intersect_key(
array_map( 'esc_url', $offer['packages'] ),
array_fill_keys( array( 'full', 'no_content', 'new_bundled', 'partial', 'rollback' ), '' )
);
} elseif ( 'download' === $offer_key ) {
$offer['download'] = esc_url( $value );
} else {
$offer[ $offer_key ] = esc_html( $value );
}
}
$offer = (object) array_intersect_key(
$offer,
array_fill_keys(
array(
'response',
'download',
'locale',
'packages',
'current',
'version',
'php_version',
'mysql_version',
'new_bundled',
'partial_version',
'notify_email',
'support_email',
'new_files',
),
''
)
);
}
$updates = new stdClass();
$updates->updates = $offers;
$updates->last_checked = time();
$updates->version_checked = wp_get_wp_version();
if ( isset( $body['translations'] ) ) {
$updates->translations = $body['translations'];
}
set_site_transient( 'update_core', $updates );
if ( ! empty( $body['ttl'] ) ) {
$ttl = (int) $body['ttl'];
if ( $ttl && ( time() + $ttl < wp_next_scheduled( 'wp_version_check' ) ) ) {
// Queue an event to re-run the update check in $ttl seconds.
wp_schedule_single_event( time() + $ttl, 'wp_version_check' );
}
}
// Trigger background updates if running non-interactively, and we weren't called from the update handler.
if ( $doing_cron && ! doing_action( 'wp_maybe_auto_update' ) ) {
/**
* Fires during wp_cron, starting the auto-update process.
*
* @since 3.9.0
*/
do_action( 'wp_maybe_auto_update' );
}
}
Hooks
- apply_filters( ‘core_version_check_locale’,
string $locale ) Filters the locale requested for WordPress core translations.
- apply_filters( ‘core_version_check_query_args’,
array $query ) Filters the query arguments sent as part of the core version check.
- do_action( ‘wp_maybe_auto_update’ )
Fires during wp_cron, starting the auto-update process.
Changelog
Version | Description |
---|---|
2.3.0 | Introduced. |
User Contributed Notes
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