Google Adwords API Language selector NULL results

[Mustafa]

When i use Language() selector in Google Adwords API code and the keyword I choose has no results code returns me results as 'NULL' but if I run code with same keyword and no Language() selector it returns me results as '0's... So what is wrong with the Language() selector that it doesn't give me results as 0?

... 
$languageParameter = new LanguageSearchParameter(); 
$languageSet = new Language(); 
$languageSet->setId(1000); 
$languageParameter->setLanguages([$languageSet]); 
$searchParameters[] = $languageParameter; 
...