您需要的是
<?phpob_start();echo "<pre>";echo "Loading ...";ob_flush();flush();$ch = curl_init();curl_setopt($ch, CURLOPT_URL, "http://stackoverflow.com");//curl_setopt($ch, CURLOPT_BUFFERSIZE,128);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, 'progress');curl_setopt($ch, CURLOPT_NOPROGRESS, false); // needed to make progress function workcurl_setopt($ch, CURLOPT_HEADER, 0);curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);$html = curl_exec($ch);curl_close($ch);function progress($resource,$download_size, $downloaded, $upload_size, $uploaded){ if($download_size > 0) echo $downloaded / $download_size * 100; ob_flush(); flush(); sleep(1); // just to see effect}echo "Done";ob_flush();flush();?>
