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I have this code and its downloading file nicely. But I want to show a progress bar while downloading file from external server. My existing code shows progress bar but its not effective (ex. if i try to download two media file, one video and another audio, and video size is larger than audio size the audio finishes first and the progress bar shows 100% also suddenly it drops to 50% as the video is still downloading ). I mean it actually shows two progress and I need one. If I could get average percentage value of two progress that would be better. Any suggestion regarding this will be greatly appreciated. <?php set_time_limit ( 0 ); function define_progress_callback($i) { global $conn; curl_setopt($conn[$i], CURLOPT_PROGRESSFUNCTION, function ($resource,$download_size, $downloaded, $upload_size, $uploaded) { if($download_size > 0) $progress = round($downloaded / $download_size * 100); echo '<script language="javascript">$(".loader").loader("setProgress", '.$progress.');</script>'; echo str_pad("",1024," "); flush(); usleep(20000); }); } $urls = array("http://example.com/file.mp3", "http:/example.com/file.mp4"); $save_to='./tmp/'; $conn = array(); $fp = array(); $mh = curl_multi_init(); foreach ($urls as $i => $url) { $g = $save_to . basename($url); $conn[$i]=curl_init($url); $fp[$i]=fopen ($g, "wb"); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // No certificate curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE); curl_setopt ($conn[$i], CURLOPT_FILE, $fp[$i]); curl_setopt ($conn[$i], CURLOPT_HEADER ,0); curl_setopt($conn[$i],CURLOPT_CONNECTTIMEOUT,60); curl_setopt ($conn[$i], CURLOPT_MAXCONNECTS, 10); curl_setopt($conn[$i], CURLOPT_NOPROGRESS, false); define_progress_callback($i); curl_multi_add_handle ($mh,$conn[$i]); } do { $n=curl_multi_exec($mh,$active); } while ($active); foreach ($urls as $i => $url) { curl_multi_remove_handle($mh,$conn[$i]); curl_close($conn[$i]); fclose($fp[$i]); } curl_multi_close($mh); ?>