php下载文件显示进度（适用于CLI模式或长连接）

<?php/*@desc：php下载文件显示进度@param file 待下载文件名@param name 存储到本地文件名*/function downloadprogress($file,$name){$dir = dirname($name);if(!is_dir($dir)){ ???mkdir($dir,0755,true);}ob_start();set_time_limit(0);$fr = fopen ($file, "rb");if ($fr) { ???$content = file_get_contents($file); ???$filesize = strlen($content); ???$fw = fopen ($name, "wb"); ???$downlen=0; ???$last = 0; ???$diff = 0; ???echo "["; ???if ($fw) { ???????while(!feof($fr)) { ???????????$data = fread($fr, 1024 * 8 ); ???????????$downlen += strlen($data); ???????????fwrite($fw, $data, 1024 * 8 ); ???????????$percent = round($downlen/$filesize*100,2); ???????????$diff += $percent - $last; ???????????if($diff > 1){ ???????????????echo "#"; ???????????????$diff = 0; ???????????} ???????????$last = $percent; ???????????ob_flush(); ???????????flush(); ???????} ???????echo "#]done"; ???} ???if ($fr) { ???????fclose($fr); ???} ???if ($fw) { ???????fclose($fw); ???}}}

downloadprogress(‘2018.rar‘,‘aaa/01.rar‘);