/ 将文件导出为下载 /

<?php
    public static function export_to_download($path,$title){
        $file = fopen($path, 'rb');
        Header( "Content-type:  application/octet-stream ");
        Header( "Accept-Ranges:  bytes ");
        Header( "Content-Disposition:  attachment;  filename= $title");
        while(!feof($file)){
            echo fread($file, 8192);
            ob_flush();
            flush();
        }
        fclose($file);
    }