http://www.tutorialhelpdesk.com/forum/ Tutorialhelpdesk programming forums en Fri, 21 Nov 2008 21:59:19 +0000 http://www.tutorialhelpdesk.com/forum/topic/limit-the-speed-of-download-with-php#post-20 Fri, 04 Jul 2008 11:36:33 +0000 ioana 20@http://www.tutorialhelpdesk.com/forum/ <p>Hi! I recently stumbled upon this function which seems to be pretty handy if you have a lot of downloads from your website and you want to limit the download speed at which your visitors download files. Have a look:<br /> <pre><code>// local file that should be send to the client $local_file = &#39;test-file.zip&#39;; // filename that the user gets as default $download_file = &#39;your-download-name.zip&#39;; // set the download rate limit (=&gt; 20,5 kb/s) $download_rate = 20.5; if(file_exists($local_file) &#38;&#38; is_file($local_file)) { // send headers header(&#39;Cache-control: private&#39;); header(&#39;Content-Type: application/octet-stream&#39;); header(&#39;Content-Length: &#39;.filesize($local_file)); header(&#39;Content-Disposition: filename=&#39;.$download_file); // flush content flush(); // open file stream $file = fopen($local_file, &quot;r&quot;); while(!feof($file)) { // send the current file part to the browser print fread($file, round($download_rate * 1024)); // flush the content to the browser flush(); // sleep one second sleep(1); } // close file stream fclose($file);} else { die(&#39;Error: The file &#39;.$local_file.&#39; does not exist!&#39;); }</code></pre>