tag
	 * @return string
	 */
	private function cache_settings($preformat_container = true) {
		$config = $this->server_info_util->get_cache_config();

		if (isset($config['wp_salt_auth'])) {
			$config['wp_salt_auth'] = '*****';
		}
		if (isset($config['wp_salt_logged_in'])) {
			$config['wp_salt_logged_in'] = '*****';
		}

		$json = wp_json_encode($config, JSON_PRETTY_PRINT);
		return $preformat_container ? $this->pre_container($json) : $json;
	}

	/**
	 * Grab .htaccess contents in webroot
	 *
	 * @param bool $preformat_container Enclose the value inside a 
 tag
	 * @return string
	 */
	private function webroot_htaccess($preformat_container = true) {
		$content = $this->server_info_util->get_webroot_htaccess();
		if ('' !== $content) {
			return $preformat_container ? $this->pre_container($content) : $content;
		}
		return esc_html__('Not found or not readable', 'wp-optimize');
	}

	/**
	 * Grab .htaccess contents in uploads folder
	 *
	 * @param bool $preformat_container Enclose the value inside a 
 tag
	 * @return string
	 */
	private function uploads_htaccess($preformat_container = true) {
		$content = $this->server_info_util->get_upload_dir_htaccess();
		if ('' !== $content) {
			return $preformat_container ? $this->pre_container($content) : $content;
		}
		return esc_html__('Not found or not readable', 'wp-optimize');
	}

	/**
	 * Helper to generate a preformatted HTML tag with contents and optional id
	 *
	 * @param string $content The innerHTML for the tag
	 * @param string $id      Optional DOM id attribute
	 * @return string
	 */
	private function pre_container($content, $id = '') {
		return '
' . esc_html($content) . '
';
	}

	/**
	 * Show information about directories permissions
	 *
	 * @param bool $preformat_container Enclose the value inside a 
 tag
	 * @return string
	 */
	private function path_perms($preformat_container = true) {
		$json = wp_json_encode($this->server_info_util->get_uploads_dir_permissions(), JSON_PRETTY_PRINT);
		return $preformat_container ? $this->pre_container($json) : $json;
	}

	/**
	 * Information about WebP image redirection status
	 *
	 * @return string
	 */
	private function webp_redirect_status() {
		$result = $this->server_info_util->webp_redirection_status();

		if (null === $result) {
			return esc_html__('Redirection is not available', 'wp-optimize');
		} elseif (false === $result) {
			return esc_html__('Redirection is disabled', 'wp-optimize');
		}
		return esc_html__('Redirection is enabled', 'wp-optimize');
	}

	/**
	 * Prepare complex item (asynx loading) as a label HTML tag that will be replaced with JS code (ex. directories sizes from core-site-health API call)
	 *
	 * @param string|array $value              If array, it will be JSON encoded inside a preformatted HTML tag
	 * @param string|null  $id                 If not null, it is used as the label id property. If null, there will be no label, just value
	 * @param string|null  $dynamic_field_type If not null, a css class is used to be able to catch these fields when the call is done
	 * @return string
	 */
	private function ajax_value_container($value, $id, $dynamic_field_type) {
		if (is_array($value)) {
			$value = '
' . wp_json_encode($value, JSON_PRETTY_PRINT) . '
';
		} else {
			$value = esc_html($value);
		}

		if (is_null($id)) {
			return $value;
		}

		$css_class = null !== $dynamic_field_type ? 'wpo-ajax-field-' . esc_attr($dynamic_field_type) : '';
		return '' . esc_html($value) . '';
	}

	/**
	 * Add timestamp to report information
	 *
	 * @return string
	 */
	private function generation_time() {
		$timezone = wp_timezone_string();

		return date_i18n('Y-m-d H:i:s', current_datetime()->getTimestamp()) . ('' !== $timezone ? ' (' . $timezone . ')' : '');
	}
}

endif;