symfony - Having problems filtering by xPath -

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i'm trying build hacker news scraper using symfony 2's dom crawler [1]

when try out xpath chrome plugin [2], works. when try in scraper keep getting the current node list empty.

here's scraper code:

$crawler1 = $client1->request('get','https://news.ycombinator.com/item?id=8296437'); $hnpost->selftext = $crawler1->filterxpath('/html/body/center/table/tbody/tr[3]/td/table[1]/tbody/tr[4]/td[2]')->text();

[1] http://api.symfony.com/2.0/symfony/component/domcrawler/crawler.html#method_filter [2] https://chrome.google.com/webstore/detail/xpath-helper/hgimnogjllphhhkhlmebbmlgjoejdpjl?hl=en-us

if problem think is, i've been battered 1 couple of times. chrome implicitly adds missing <tbody> tags dom, if copy xpath or css path, may have copied tags don't exist in source document. try viewing page's source , see if dom reported browser's console corresponds original source html. if <tbody> tags absent, sure exclude them in filterxpath() call.


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