abstract：<!doctype html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" &nb
<!doctype html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>文件上传/下载页面</title> </head> <body> <form action="upFile.php" method="post" enctype="multipart/form-data" > <label>请选择需要上传的文件：</label> <input type="file" name = "upFile"> <br><br> <label> 请确定开始上传此文件：</label> <input type="submit" value="上传"> </form> <br><br> <form action="down.php" method="get"> <input type="text" name="downFileName" value="demo.rar"> <input type="submit" value="下载"> </form> </body> </html>
//upFile.php <?php require 'upFun.php'; print_r(upFile($_FILES['upFile'])); ?>
//down.php <?php require 'upFun.php'; $downFile=$_GET['downFileName']; dowFile($downFile); ?>
//upFun.php
<?php
function dowFile($fileName)
{
header('Accept-Length:'.filesize($fileName));
// 主要是这一行
header('Content-Disposition:attachment;filename='.basename($fileName));
readfile($fileName);
}
function upFile($fileInfo,$uploadPath='./upload',$allowExt = ['png','jpg','jpeg','gif'
,'txt','html'],$maxSize = 2000000){
if($fileInfo['error'] ===0){
//返回文件后缀名
$ext = strtolower(pathinfo($fileInfo['name'],PATHINFO_EXTENSION));
if(!in_array($ext,$allowExt)){
return '非法文件类型';
}
if(!is_uploaded_file($fileInfo['tmp_name'])){
return '非法上传！';
}
if(!is_dir($uploadPath)){
mkdir($uploadPath,0777,true);
}
//文件名，用md生成的
$uniName = md5(uniqid(microtime(true),true)).".".$ext;
//新文件名
$dest = $uploadPath."/".$uniName;
if(!move_uploaded_file($fileInfo['tmp_name'],$dest))
{
return '文件上传失败';
}
return '文件上传成功';
}else{
switch ($fileInfo['error']){
case 1:
$res = '上传的文件超过了php.ini 中
upload_max_filesize 选项限制的值';
break;
case 2:
$res = '上传文件的大小超过了HTML表单中MAX_FILE_SIZE 选项指定的值';
break;
case 3:
$res = '文件只有部分被上传';
break;
case 4:
$res ='没有文件被上传';
break;
case 6:
case 7:
$res = '系统错误';
break;
}
return $res;
}
}
Correcting teacher：查无此人Correction time：2019-04-18 09:53:49
Teacher's summary：完成的不错，上传文件格式记得要限制一下。不然会有病毒上传。继续加油。