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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