php怎么实现保存下载文件插图

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();
?>

推荐学习:《PHP视频教程

以上就是php怎么实现保存下载文件的详细内容,更多请关注亿码酷站其它相关文章!



php怎么实现保存下载文件
—–文章转载自PHP中文网如有侵权请联系ymkuzhan@126.com删除

云服务器推荐