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    <p><strong>Keep-alive connections</strong></p> <p>Normally, if a connection isn't set as <code>keep-alive</code>, once PHP terminates the current script, the remaining output buffer gets forwarded to the web-server, which in turn forwards the data to the client. Then the web-server <strong>closes its connection</strong> to the client (browser).</p> <p>If you request </p> <pre><code>Connection: keep-alive </code></pre> <p>the server does just this: It <strong>keeps the connection open</strong>, even if a reply has completely finished. Thus, the mentioned behavior is just fine. <strong>Furthermore, e.g. <code>feof()</code> won't return FALSE - since more data might arrive eventually.</strong></p> <p>Note, that you can re-use the keep-alive connection within your currently running PHP script. But once your PHP script finishes, the keep-alive connection will be disconnected.</p> <p>Thus, you <strong>can't reuse</strong> the keep-alive connection using your next PHP script instance.</p> <p><strong>Case 1 - Amount of data known before request</strong></p> <p>If you know the amount of data beforehand, you might read just that amount of data <code>$expectedAmountOfDataInBytes</code> and then close the connection:</p> <pre><code>$expectedAmountOfDataInBytes = 2023; $handle = fopen( "http://www.stackoverflow.com/", "r" ); if ( ! is_resource( $handle )) { echo 'sorry'; exit; } while( ( ! feof( $handle ) ) &amp;&amp; ( 0 &lt; $expectedAmountOfDataInBytes-- ) ) { $contents .= fread( $handle, 1 ); } fclose($handle); </code></pre> <p><strong>Case 2 - Amount of data unknown before request</strong></p> <p>In case you don't know the amount of data beforehand, you need to submit a <a href="https://de.wikipedia.org/wiki/Hypertext_Transfer_Protocol" rel="nofollow">HTTP</a> request</p> <pre><code>GET /infotext.html HTTP/1.1 Host: www.example.net </code></pre> <p>and parse an answer like so:</p> <pre><code>HTTP/1.1 200 OK Server: Apache/1.3.29 (Unix) PHP/4.3.4 Content-Length: 4 Content-Language: de (nach RFC 3282 sowie RFC 1766) Connection: close Content-Type: text/html ABCD </code></pre> <p>Find in the <a href="http://www.php.net/manual/en/sockets.examples.php" rel="nofollow">PHP Manuals</a> a simple HTTP client based on <a href="http://www.php.net/manual/en/book.sockets.php" rel="nofollow">sockets I/O</a>.</p>
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    1. COAnd here I have another problem, the amount of data is unknown, that is it changes from time to time ;) ... I already tryed something like this, but only with _while(!feof($handle))_, and that took the same as file_get_contents... hmm, I guess I will try to find the size for this, maybe by checking the headers, but yes that should work... thanks for the reply
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    2. CO@EdisGolubić I enhanced my answer and provided a starting point. Have a look.
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