# do_core_upgrade()

URL: https://chugunov.pro/api-wordpress/functions/do_core_upgrade/
Проверено на WordPress 6.9, обновлено 06.08.2026.
Источник: независимый русскоязычный справочник chugunov.pro. Не является официальной документацией WordPress.

Тип: функция.
Появился в версии: 2.7.0.

## Сигнатура

```php
do_core_upgrade( bool $reinstall = false )
```

## Описание

Отображает процесс обновления ядра WordPress.

## Параметры

- `$reinstall` `bool` — необязательный, по умолчанию `false`. Следует ли переустановить WordPress.

## Исходный код

Файл: `wp-admin/update-core.php:845`

```php
function do_core_upgrade( $reinstall = false ) {
	global $wp_filesystem;

	require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';

	if ( $reinstall ) {
		$url = 'update-core.php?action=do-core-reinstall';
	} else {
		$url = 'update-core.php?action=do-core-upgrade';
	}
	$url = wp_nonce_url( $url, 'upgrade-core' );

	$version = $_POST['version'] ?? false;
	$locale  = $_POST['locale'] ?? 'en_US';
	$update  = find_core_update( $version, $locale );
	if ( ! $update ) {
		return;
	}

	/*
	 * Allow relaxed file ownership writes for User-initiated upgrades when the API specifies
	 * that it's safe to do so. This only happens when there are no new files to create.
	 */
	$allow_relaxed_file_ownership = ! $reinstall && isset( $update->new_files ) && ! $update->new_files;

	?>
	<div class="wrap">
	<h1><?php _e( 'Update WordPress' ); ?></h1>
	<?php

	$credentials = request_filesystem_credentials( $url, '', false, ABSPATH, array( 'version', 'locale' ), $allow_relaxed_file_ownership );
	if ( false === $credentials ) {
		echo '</div>';
		return;
	}

	if ( ! WP_Filesystem( $credentials, ABSPATH, $allow_relaxed_file_ownership ) ) {
		// Failed to connect. Error and request again.
		request_filesystem_credentials( $url, '', true, ABSPATH, array( 'version', 'locale' ), $allow_relaxed_file_ownership );
		echo '</div>';
		return;
	}

	if ( $wp_filesystem->errors->has_errors() ) {
		foreach ( $wp_filesystem->errors->get_error_messages() as $message ) {
			show_message( $message );
		}
		echo '</div>';
		return;
	}

	if ( $reinstall ) {
		$update->response = 'reinstall';
	}

	add_filter( 'update_feedback', 'show_message' );

	$upgrader = new Core_Upgrader();
	$result   = $upgrader->upgrade(
		$update,
		array(
			'allow_relaxed_file_ownership' => $allow_relaxed_file_ownership,
		)
	);

	if ( is_wp_error( $result ) ) {
		show_message( $result );
		if ( 'up_to_date' !== $result->get_error_code() && 'locked' !== $result->get_error_code() ) {
			show_message( __( 'Installation failed.' ) );
		}
		echo '</div>';
		return;
	}

	show_message( __( 'WordPress updated successfully.' ) );
	show_message(
		'<span class="hide-if-no-js">' . sprintf(
			/* translators: 1: WordPress version, 2: URL to About screen. */
			__( 'Welcome to WordPress %1$s. You will be redirected to the About WordPress screen. If not, click <a href="%2$s">here</a>.' ),
			$result,
			esc_url( self_admin_url( 'about.php?updated' ) )
		) . '</span>'
	);
	show_message(
		'<span class="hide-if-js">' . sprintf(
			/* translators: 1: WordPress version, 2: URL to About screen. */
			__( 'Welcome to WordPress %1$s. <a href="%2$s">Learn more</a>.' ),
			$result,
			esc_url( self_admin_url( 'about.php?updated' ) )
		) . '</span>'
	);
	?>
	</div>
	<script>
	window.location = '<?php echo esc_url( self_admin_url( 'about.php?updated' ) ); ?>';
	</script>
	<?php
}
```

## История изменений

- 2.7.0 — Introduced.

## Связанные

Использует: [`show_message`](https://chugunov.pro/api-wordpress/functions/show_message/), [`find_core_update`](https://chugunov.pro/api-wordpress/functions/find_core_update/), [`request_filesystem_credentials`](https://chugunov.pro/api-wordpress/functions/request_filesystem_credentials/), [`WP_Filesystem`](https://chugunov.pro/api-wordpress/functions/wp_filesystem/), [`self_admin_url`](https://chugunov.pro/api-wordpress/functions/self_admin_url/), [`_e`](https://chugunov.pro/api-wordpress/functions/_e/), [`__`](https://chugunov.pro/api-wordpress/functions/__/), [`esc_url`](https://chugunov.pro/api-wordpress/functions/esc_url/), [`wp_nonce_url`](https://chugunov.pro/api-wordpress/functions/wp_nonce_url/), [`add_filter`](https://chugunov.pro/api-wordpress/functions/add_filter/), [`is_wp_error`](https://chugunov.pro/api-wordpress/functions/is_wp_error/).

Оригинал в официальной документации: https://developer.wordpress.org/reference/functions/do_core_upgrade/