Automattic\WooCommerce\Internal\Admin\Settings\PaymentProviders

PayPal::is_paypal_in_sandbox_mode │ private │ WC 1.0

Check if the PayPal payment gateway is in sandbox mode.

For PayPal, there are two different environments: sandbox and production.

Method of the class: PayPal{}

No Hooks.

Returns

?true|false. True if the payment gateway is in sandbox mode, false otherwise. Null if the environment could not be determined.

Usage

// private - for code of main (parent) class only
$result = $this->is_paypal_in_sandbox_mode(): ?bool;

PayPal::is_paypal_in_sandbox_mode() code WC 9.9.3

woocommerce/src/Internal/Admin/Settings/PaymentProviders/PayPal.php 
private function is_paypal_in_sandbox_mode(): ?bool {
	if ( class_exists( '\WooCommerce\PayPalCommerce\PPCP' ) &&
		is_callable( '\WooCommerce\PayPalCommerce\PPCP::container' ) ) {
		try {
			$container = \WooCommerce\PayPalCommerce\PPCP::container();

			if ( $container->has( 'settings.connection-state' ) ) {
				$state = $container->get( 'settings.connection-state' );

				return $state->is_sandbox();
			}

			// Backwards compatibility with pre 3.0.0 (deprecated).
			if ( $container->has( 'onboarding.environment' ) &&
				defined( '\WooCommerce\PayPalCommerce\Onboarding\Environment::SANDBOX' ) ) {
				$environment         = $container->get( 'onboarding.environment' );
				$current_environment = $environment->current_environment();

				return \WooCommerce\PayPalCommerce\Onboarding\Environment::SANDBOX === $current_environment;
			}
		} catch ( \Exception $e ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch
			// Ignore any exceptions.
		}
	}

	// Let the caller know that we couldn't determine the environment.
	return null;
}