WooCommerce settings overrides.

class-wc-settings-overrider.php

<?php
/**
 * For overriding woocommerce settings.
 */

declare( strict_types=1 );

namespace Acme\Client\Mu\Plugins\Woocommerce\Overrides;

/**
 * This class is to help override certain woocommerce settings. It allows an array of settings to override to be passed
 * into the constructor which then can either be used to filter them out and/or to update their value.
 */
class WC_Settings_Overrider {

	/**
	 * An array of woocommerce settings to override. This should be in the format ['setting_name' => 'value_of_setting'].
	 *
	 * @var array
	 */
	private $settings_to_override;

	/**
	 * WC_Settings_Overrider constructor.
	 *
	 * @param array $settings_to_override Array of settings to override.
	 */
	public function __construct( array $settings_to_override ) {
		$this->settings_to_override = $settings_to_override;
	}

	/**
	 * Filter out any advanced settings we don't wish to display in the woocommerce settings page.
	 *
	 * @param array $settings Settings that are used for this filter.
	 *
	 * @return array
	 */
	public function filter_settings( array $settings ): array {
		$settings_to_remove = array_keys( $this->settings_to_override );

		return array_filter(
			$settings,
			function ( array $setting ) use ( $settings_to_remove ) : bool {
				return ! \in_array( $setting['id'], $settings_to_remove, true );
			}
		);
	}

	/**
	 * Update woocommerce options as per our hard coded config.
	 */
	public function set_options(): void {
		$options = $this->settings_to_override;

		foreach ( $options as $name => $value ) {
			update_option( $name, $value, 'no' );
		}
	}
}

usage.php

<?php
/**
 * Overriding woocommerce account settings
 */

declare( strict_types=1 );

namespace Acme\Client\Mu\Plugins\Woocommerce\Overrides;

const GENERAL_SETTINGS_TO_OVERRIDE = [
	'woocommerce_enable_coupons' => 'no',
];

$wc_settings_overrider = new WC_Settings_Overrider( namespace\GENERAL_SETTINGS_TO_OVERRIDE );

add_filter( 'woocommerce_general_settings', [ $wc_settings_overrider, 'filter_settings' ] );
add_action( 'woocommerce_loaded', [ $wc_settings_overrider, 'set_options' ] );