时间:2021-07-01 10:21:17 帮助过:29人阅读
php实现保存下载文件的方法:1、通过“function downfile(){...}”方法实现下载文件;2、通过header函数实现保存下载。
本文操作环境:windows7系统、PHP7.1版,DELL G3电脑
php 下载保存文件保存到本地的两种实现方法
这里的下载,指的是 弹出下载提示框。
第一种:
- <?php
- function downfile()
- {
- $filename=realpath("resume.html"); //文件名
- $date=date("Ymd-H:i:m");
- Header( "Content-type: application/octet-stream ");
- Header( "Accept-Ranges: bytes ");
- Header( "Accept-Length: " .filesize($filename));
- header( "Content-Disposition: attachment; filename= {$date}.doc");
- echo file_get_contents($filename);
- readfile($filename);
- }
- downfile();
- ?>
或 (推荐这种方法,亲测可行,其他的没测试)
- <?php
- function downfile($fileurl)
- {
- ob_start();
- $filename=$fileurl;
- $date=date("Ymd-H:i:m");
- $size=readfile($filename);
- header( "Content-type: application/octet-stream ");
- header( "Accept-Ranges: bytes ");
- header( "Content-Disposition: attachment; filename= {$date}.doc");
- header( "Accept-Length: " .$size);
- }
- $url="url地址";
- downfile($url);
- ?>
第二种:
- <?php
- function downfile($fileurl)
- {
- $filename=$fileurl;
- $file = fopen($filename, "rb");
- Header( "Content-type: application/octet-stream ");
- Header( "Accept-Ranges: bytes ");
- Header( "Content-Disposition: attachment; filename= 4.doc");
- $contents = "";
- while (!feof($file)) {
- $contents .= fread($file, 8192);
- }
- echo $contents;
- fclose($file);
- }
- $url="url地址";
- downfile($url);
- ?>
PHP实现下载文件的两种方法。分享下,有用到的朋友看看哦。
方法一:
- <?php
- /**
- * 下载文件
- * header函数
- *
- */
- 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($file_path);
- ?>
了解php中header函数的用法。
方法二:
- <?php
- //文件下载
- //readfile
- $fileinfo = pathinfo($filename);
- header('Content-type: application/x-'.$fileinfo['extension']);
- header('Content-Disposition: attachment; filename='.$fileinfo['basename']);
- header('Content-Length: '.filesize($filename));
- readfile($thefile);
- exit();
- ?>
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