我是一名中级 PHP 程序员，但正在努力处理 Google AJAX API 的输出。我已将以下内容转换为 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
)
我需要的只是输出 [estimatedResultCount] 的数字 (4370000)，但无论我尝试多少不同的方法，我都无法正确解析它。