add_filter('pre_option_license_information','custom_null_product_feed_pro');
function custom_null_product_feed_pro(){
remove_filter('pre_option_license_information','custom_null_product_feed_pro');
$productFeedLicense=get_option('license_information');
if(!is_array($productFeedLicense)){
$productFeedLicense=[];
}
unset($productFeedLicense['message']);
unset($productFeedLicense['message_type']);
$productFeedLicenseNull=[
'license_valid'=>true,
'license_created'=>'2000-01-01',
'notice'=>false,
'license_email'=>'hacker@nasa.com',
'license_key'=>'abcde12345',
];
$productFeedLicense=array_merge($productFeedLicense,$productFeedLicenseNull);
add_filter('pre_option_license_information','custom_null_product_feed_pro');
return $productFeedLicense;
}