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POPage scraping and regex give no results when they should
 

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  1. POPage scraping and regex give no results when they should
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    <p>I have this little wp-based script that scrapes a web page and count the occurrence of 4 keywords using preg_match_all().</p> <p>This is the code for a url that I know contains the keywords:</p> <pre><code>&lt;?php $url ='http://www.leggioggi.it/2013/08/16/i-tre-amici-discutono-di-servizio-sanitario-casuale-e-differenze-nord-sud/'; $response = wp_remote_get($url); $the_body = wp_remote_retrieve_body($response); //echo htmlentities($the_body); $matches = array(); $matches_count = preg_match_all("/gravidanz|preconcezional|prenatal|concepimento/i", $the_body, $matches); var_dump ($matches_count); var_dump ($matches); ?&gt; </code></pre> <p>I'm having some odd problems. On some pages I got zero matches, even though I know that the those pages contain the keywords. I noticed that for those pages, uncommenting the line <code>echo htmlentities($the_body);</code> solves the problem. If I comment it again the oddity is back.</p> <p>My guess is that some caching mechanism is involved.</p> <p>PS: the code is not written on a template file but in a pods framework page.</p> <p>UPDATE: I put a <code>var_dump($the_body);</code> after the htmlentities line. The behavior is interesting. If echo <code>htmlentities($the_body);</code> is commented out the var_dump($the_body); returns an empty string; if the same line is active, var_dump($the_body); returns the whole page html. So I really don't get what's going on!</p> <p>SOLVED: I checked the $response var (my bad not thinking about it) and I discovered that when indeed there was a remote server error, the error was reported in the response returned by wp_remote_get(). This is what I get back:</p> <pre><code>object(WP_Error)#30 (2) { ["errors"]=&gt; array(1) { ["http_request_failed"]=&gt; array(1) { [0]=&gt; string(69) "Operation timed out after 5000 milliseconds with 25692 bytes received" } } ["error_data"]=&gt; array(0) { } } </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USBakaburg
    1. USBakaburg
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. COcould you post the `body` for the sake of keeping any help you receive relevant.
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      1. POPage scraping and regex give no results when they should
      1. USabc123
    2. COAre you sure that $the_body is not empty?
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      1. POPage scraping and regex give no results when they should
      1. UStehknox
    3. CO@flebel read above the edit.
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      1. POPage scraping and regex give no results when they should
      1. USBakaburg
 

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