How to get bulk keywords stats using PHP Client

[Veer]

Hi

I am trying to fetch the keyword search volume, For a single keyword I
am able to get the AVERAGE_TARGETED_MONTHLY_SEARCHES,
GLOBAL_MONTHLY_SEARCHES etc. But is there any way to get stats for
multiple keywords in one api call.

I had tried like this:
------------------------------------------------------------------------------------------------------------------------------------------------------------
  $targetingIdeaService = $user->GetTargetingIdeaService('v200909');

  // Create seed keyword.
  $keyword1 = new Keyword();
  $keyword1->text = 'WEb Blog';
  $keyword1->matchType = 'EXACT';

  $keyword2 = new Keyword();
  $keyword2->text = 'Maths Calculator';
  $keyword2->matchType = 'EXACT';

  $keyword3 = new Keyword();
  $keyword3->text = 'Friction Power';
  $keyword3->matchType = 'EXACT';

  $keyword4 = new Keyword();
  $keyword4->text = 'Friction Physics';
  $keyword4->matchType = 'EXACT';

  $languageTarget  = new LanguageTarget();
  $languageTarget->languageCode="en";

  $countryTarget = new CountryTarget();
  $countryTarget->countryCode="US";
  // Create selector.
  $selector = new TargetingIdeaSelector();
  $selector->requestType = 'STATS';
  $selector->ideaType = 'KEYWORD';
  $selector->localeCode="en_US";

  $selector->requestedAttributeTypes =
array('KEYWORD','AVERAGE_TARGETED_MONTHLY_SEARCHES','GLOBAL_MONTHLY_SEARCHES');

  // Set selector paging (required for targeting idea service).
  $paging = new Paging();
  $paging->startIndex = 0;
  $paging->numberResults = 1;
  $selector->paging = $paging;

  // Create related to keyword search parameter.
  $relatedToKeywordSearchParameter = new
RelatedToKeywordSearchParameter();
  $relatedToKeywordSearchParameter->keywords =
array($keyword1,$keyword2,$keyword3,$keyword4);

  $languageTargetSearchParameter = new
LanguageTargetSearchParameter();
  $languageTargetSearchParameter->languageTargets=$languageTarget;

  $countryTargetSearchParameter= new CountryTargetSearchParameter();
  $countryTargetSearchParameter->countryTargets= $countryTarget;

  $selector->searchParameters = array($relatedToKeywordSearchParameter,
$languageTargetSearchParameter,$countryTargetSearchParameter);

  // Get related keywords.
  $page = $targetingIdeaService->get($selector);

--------------------------------------------------------------------------------------------------------------------------------------------------------------

But still I am getting the result for first keyword only. Please help
me out. Thanks in advance.

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