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    <blockquote> <p><strong>Note:</strong> This has been fixed in PHP 5.6.14. A <code>Connection: close</code> header will now automatically be sent even for HTTP/1.0 requests. <a href="https://github.com/php/php-src/commit/4b1dff6f438f84f7694df701b68744edbdd86153" rel="noreferrer">See commit <code>4b1dff6</code></a>.</p> </blockquote> <p>I had a hard time figuring out the cause of the slowness of file_get_contents scripts.</p> <p>By analyzing it with Wireshark, the issue (in my case and probably yours too) was that the remote web server DIDN'T CLOSE THE TCP CONNECTION UNTIL 15 SECONDS (i.e. "keep-alive").</p> <p>Indeed, file_get_contents doesn't send a "connection" HTTP header, so the remote web server considers by default that's it's a keep-alive connection and doesn't close the TCP stream until 15 seconds (It might not be a standard value - depends on the server conf).</p> <p>A normal browser would consider the page is fully loaded if the HTTP payload length reaches the length specified in the response Content-Length HTTP header. File_get_contents doesn't do this and that's a shame.</p> <p><strong>SOLUTION</strong></p> <p>SO, if you want to know the solution, here it is:</p> <pre><code>$context = stream_context_create(array('http' =&gt; array('header'=&gt;'Connection: close\r\n'))); file_get_contents("http://www.something.com/somepage.html",false,$context); </code></pre> <p>The thing is just to <strong>tell the remote web server to close the connection when the download is complete</strong>, as file_get_contents isn't intelligent enough to do it by itself using the response Content-Length HTTP header.</p>
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    1. POPHP file_get_contents very slow when using full url
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    1. COThanks for this, super sweet.
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    2. COThis answer should be accepted...
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    3. COAccepted, gilded, framed and celebrated. Thanks so much.
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