Question

我在here中找到了和我一样的案例。我尝试在PHP上创建带有mkdir的文件夹并且它可以工作，同样在MySQL中它给我链接到文件。但是，为什么我的文件不会进入新文件夹？如果我从php中删除md5，它就像正常一样工作。我使用XAMPP 5.6.30，而我的XAMPP文件夹不在C：system上。我弄错了吗？在这里我的代码：

<?php
	include('conn.php');
	
	foreach ($_FILES['upload']['name'] as $key => $name){
		
		$newFilename = time() . "_" . $name;
		
        move_uploaded_file($_FILES['upload']['tmp_name'][$key], 'upload/'.md5(time()).'/' . $newFilename);
		
        $location = 'upload/'.md5(time()).'/' . $newFilename;
        
		mkdir('upload/'.md5(time()).'/');
        
		mysqli_query($conn,"insert into photo (location) values ('$location')");
	}
	header('location:index.php');
?>

Answer 1

在这两个步骤之间：

$location = 'upload/'.md5(time()).'/' . $newFilename;
mkdir('upload/'.md5(time()).'/');

time（）值不相同，您将其用作常量你需要先将它存储在var中另外，我认为为您上传的每个文件创建新文件夹都很有用

Answer 2

首先，我会为上传创建一个名为uploads的目录

mkdir上传

然后确保它具有写权限

然后我会使用以下

include('conn.php');

foreach ($_FILES['upload']['name'] as $key => $name){
    $newfilename = "";
    $ts = time();
    $newfilename = $ts."_".$name;
    move_uploaded_file($_FILES['upload']['tmp_name'][$key], 'uploads/'.$newfilename);
    mysqli_query($conn,"insert into photo (location) values ('$newfilename');')");
}
header('location:index.php');

除非你有理由让所有上传文件夹都是独一无二的，否则我认为随着时间的推移会变得混乱而难以管理。

Answer 3

问题可能是md5（time（））每次都会生成一个新结果。我会把它变成一个变量并使用变量而不是每次重新计算它

Answer 4

您尝试在创建文件夹

之前移动文件

// Here you try to move the file but the directory is not created yet
move_uploaded_file($_FILES['upload']['tmp_name'][$key], 'upload/'.md5(time()).'/' . $newFilename);
$location = 'upload/'.md5(time()).'/' . $newFilename;
// after trying to move the file you create the directory, but the directory should be created first
mkdir('upload/'.md5(time()).'/');

这是一个有效的代码（参见顺序：首先是mkdir然后是move_uploaded_file：

include('conn.php');
foreach ($_FILES['upload']['name'] as $key => $name){
    $ts = time();
    $crptd = md5($ts);
    $newFilename = $ts . "_" . $name;
    $location = 'upload/'.$crptd.'/' . $newFilename;
    mkdir('upload/'.$crptd.'/');
    move_uploaded_file($_FILES['upload']['tmp_name'][$key], 'upload/'.$crptd.'/' . $newFilename);
    mysqli_query($conn,"insert into photo (location) values ('$location')");
}
header('location:index.php');

在Windows上创建文件夹后，文件上传不会移动

4 个答案: