getApiKey() === '') { printf( __( 'You don\'t have an API yet? Contact our technical support to get yours. Please click here to contact our support team.', BELBOON_TACKING_TEXTDOMAIN ), 'mailto:' . BelboonAdvertiserTrackingPlugin::BB_CONTACT_MAIL ); } else { if($apiKeyIsValid === true) { echo '✅ ' . __("Key is valid", BELBOON_TACKING_TEXTDOMAIN); } else { echo '❌ ' . __("Key is invalid", BELBOON_TACKING_TEXTDOMAIN); } } ?>