public function download(){ ???$id = input(‘id‘); ???$item = Db::name(‘imgsubmit‘)->where([‘id‘=>$id])->find(); ???Db::name(‘imgsubmit‘)->where([‘id‘=>$id])->update([‘status‘=>1]); ???$tt = ltrim($item[‘zip‘],‘uploads/‘); ???$path = config(‘upload_path‘).DS.$tt; ???$arr = explode(‘/‘,$path); ???$iname=$item[‘username‘].‘_‘.$item[‘order_no‘]; ???/*$filename = $arr[count($arr)-1];*/ ???$filename=$iname.‘.zip‘; ???//$file ?= ?fopen($path, "rb"); ???????if (file_exists($path)) { ????????$filesize=filesize($path); ????????header(‘Content-Description:File Transfer‘); ????????header("Content-Type:application/octet-stream"); ????????header(‘Content-Transfer-Encoding:binary‘); ????????header("Accept-Ranges: bytes"); ????????header(‘Expires:0‘); ????????header(‘Cache-Control:must-revalidate‘); ????????header(‘Pragma:public‘); ????????header("Content-Length:".$filesize); ????????header("Content-Disposition:attachment;filename=".$filename); ???????//以下内容是引用网友的代码，由于原来的出处找不到了，在此表示万分感谢和抱歉。 ???????//打开文件 ????????$fp = fopen($path, "rb"); ????????//设置指针位置 ????????ob_start(); ???????fseek($fp,0); ????????//虚幻输出 ????????while (!feof($fp)) { ????????????//设置文件最长执行时间 ????????????set_time_limit(0); ????????????print (fread($fp, 1024 * 8)); //输出文件 ????????????flush(); //输出缓冲 ????????????ob_flush(); ????????} ????????fclose($fp); ????????exit ();}else{echo "文件不存在！！！";die();}}PHP 大文件下载（方式1 不支持断点续传）
原文地址：http://blog.51cto.com/13562606/2066555