php实现下载

来源：互联网发布：夏威夷旅行社知乎编辑：程序博客网时间：2024/06/07 01:55

        header('Content-Description: File Transfer');        header('Content-Type: application/octet-stream');        header('Content-Disposition: attachment; filename='.basename($filepath));        header('Content-Transfer-Encoding: binary');        header('Expires: 0');        header('Cache-Control: must-revalidate, post-check=0, pre-check=0');        header('Pragma: public');        header('Content-Length: ' . filesize($filepath));        readfile($filepath);

 public function downloadFile($file_name){            $fileinfo = pathinfo($file_name);             $file_path=realpath($file_name);            header('Content-type: application/x-'.$fileinfo['extension']);            header( "Accept-Ranges:  bytes ");            header('Content-Length: '.filesize($file_path));            header('Content-Disposition: attachment; filename='.$fileinfo['basename']);            readfile($file_path);         }        public function downloadFileCopy() {            header("Content-type:text/html;charset=utf-8");            $file_name="Public/csv/导入学生模板表格.csv";            $file_name=iconv("utf-8","gb2312",$file_name);            $file_path=$file_name;            if(!file_exists($file_path)){                echo "没有该文件文件";                return ;            }            $fp=fopen($file_path,"r");            $file_size=filesize($file_path);            $file_name = '导入学生模板表格.csv';            Header("Content-type: application/octet-stream");            Header("Accept-Ranges: bytes");            Header("Accept-Length:".$file_size);            Header("Content-Disposition: attachment; filename=".$file_name);            $buffer=1024;            $file_count=0;            while(!feof($fp) && $file_count<$file_size){                $file_con=fread($fp,$buffer);                $file_count+=$buffer;                echo $file_con;            }            fclose($fp);        }

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