Parsing stdClass Данные объекта в php

Я – промежуточный программист PHP, но я борюсь с выходом API AJAX Google. У меня есть следующее преобразованное в stdClass

stdClass Object ( [responseData] => stdClass Object ( [results] => Array ( [0] => stdClass Object ( [GsearchResultClass] => GwebSearch [unescapedUrl] => http://www.1860-1960.com/shoes.html [url] => http://www.1860-1960.com/shoes.html [visibleUrl] => www.1860-1960.com [cacheUrl] => http://www.google.com/search?q=cache:4bB2OicXg5EJ:www.1860-1960.com [title] => Beautiful Antique Shoes and Boots, Vintage Fashions [titleNoFormatting] => Beautiful Antique Shoes and Boots, Vintage Fashions [content] => Victorian White Kid Child's Straight Sole Shoes c1850. Victorian Child's Needlepoint Bunny ... Lovely Vintage Shoes. Antique shoes or antique boots. ... ) [1] => stdClass Object ( [GsearchResultClass] => GwebSearch [unescapedUrl] => http://www.reproduction-vintage-shoes.com/ [url] => http://www.reproduction-vintage-shoes.com/ [visibleUrl] => www.reproduction-vintage-shoes.com [cacheUrl] => http://www.google.com/search?q=cache:ZIF1MW0oHlwJ:www.reproduction-vintage-shoes.com [title] => Reproduction Vintage Shoes, Affordable, Custom Made, Antique Footwear [titleNoFormatting] => Reproduction Vintage Shoes, Affordable, Custom Made, Antique Footwear [content] => Individually custom made reproduction Victorian and Edwardian shoes and boots. Historically accurate in appearance and made by a dance shoe maker; ... ) [2] => stdClass Object ( [GsearchResultClass] => GwebSearch [unescapedUrl] => http://fineartamerica.com/featured/mv--antique-shoes-nancy-ferrier.html [url] => http://fineartamerica.com/featured/mv--antique-shoes-nancy-ferrier.html [visibleUrl] => fineartamerica.com [cacheUrl] => http://www.google.com/search?q=cache:F3D-ay-THp4J:fineartamerica.com [title] => MV - Antique Shoes Photograph by Nancy Ferrier - MV - Antique ... [titleNoFormatting] => MV - Antique Shoes Photograph by Nancy Ferrier - MV - Antique ... [content] => Aug 24, 2009 ... MV - Antique Shoes Photograph by Nancy Ferrier, MV - Antique Shoes Photograph, MV - Antique Shoes Photograph for Sale, MV - Antique Shoes ... ) [3] => stdClass Object ( [GsearchResultClass] => GwebSearch [unescapedUrl] => http://www.bobbydene.com/ [url] => http://www.bobbydene.com/ [visibleUrl] => www.bobbydene.com [cacheUrl] => http://www.google.com/search?q=cache:mHJnlzmDYf4J:www.bobbydene.com [title] => BobbyDene's Vintage Clothing, Victorian, Edwardian, Vintage ... [titleNoFormatting] => BobbyDene's Vintage Clothing, Victorian, Edwardian, Vintage ... [content] => Victorian, Edwardian, 1920, 1940, vintage clothing, vintage dresses, antique clothes, hats, shoes, boots, jewelry, and collectables. ) ) [cursor] => stdClass Object ( [pages] => Array ( [0] => stdClass Object ( [start] => 0 [label] => 1 ) [1] => stdClass Object ( [start] => 4 [label] => 2 ) [2] => stdClass Object ( [start] => 8 [label] => 3 ) [3] => stdClass Object ( [start] => 12 [label] => 4 ) [4] => stdClass Object ( [start] => 16 [label] => 5 ) [5] => stdClass Object ( [start] => 20 [label] => 6 ) [6] => stdClass Object ( [start] => 24 [label] => 7 ) [7] => stdClass Object ( [start] => 28 [label] => 8 ) ) [estimatedResultCount] => 4370000 [currentPageIndex] => 0 [moreResultsUrl] => http://www.google.com/search?oe=utf8&ie=utf8&source=uds&start=0&hl=en&q=antique+shoes ) ) [responseDetails] => [responseStatus] => 200 ) 

Все, что мне нужно, это вывести номер [ratedResultCount] (4370000), но независимо от того, сколько разных способов я его пробую, я не могу правильно его разобрать.

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 $obj->responseData->cursor->estimatedResultCount