mkdir() 不使用此代码为上传照片创建随机目录名称

Question

// profile picture upload
if (isset($_FILES['profilepic'])) {
    if ( ((@$_FILES["profilepic"]["type"]=="image/jpeg")
            || (@$_FILES["profilepic"]["type"]=="image/png")
            || (@$_FILES["profilepic"]["type"]=="image/gif"))
        && (@$_FILES["profilepic"]["size"] < 1048576) ) //1 Megabyte
    {
        $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        $rand_dir_name = substr(str_shuffle($chars), 0, 15);

        mkdir("userdata/profile_pics/$rand_dir_name");

这是我所有文件所在的目录：C:/xampp/htdocs/asweb

这是我要保存新目录的地方：C:/xampp/htdocs/asweb/userdata/profile_pics

Answer 1

我刚刚测试了以下内容：

$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$rand_dir_name = substr(str_shuffle($chars), 0, 15);
echo $rand_dir_name.$b;    // ojTxNHb0RuiyKze

mkdir("c:\dev\".$rand_dir_name,0777,TRUE);

它使 c:\dev\ojTxNHb0RuiyKze 没问题。我进去保存了一个文本文件。

手册 page 说

模式

The mode is 0777 by default, which means the widest possible access. For more information on modes, read the details on the chmod() page.

Note: mode is ignored on Windows. Note that you probably want to specify the mode as an octal number, which means it should have a leading zero. The mode is also modified by the current umask, which you can change using umask().

但是在 linux 上，让它遵循 chmod 值。

编辑：op 做不到，我们再来一次：

$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$rand_dir_name = substr(str_shuffle($chars), 0, 15);
echo $rand_dir_name.$b;    // l1TGXW3kgQcr2N5
mkdir("C:\xampp\htdocs\asweb\userdata\profile_pics\".$rand_dir_name,0777,TRUE);

制作C:\xampp\htdocs\asweb\userdata\profile_pics\l1TGXW3kgQcr2N5没问题

mkdir() 不使用此代码为上传照片创建随机目录名称

mkdir() not working with this code for creating random directory name for upload photo

html

php

mysql

mkdir

编辑：op 做不到，我们再来一次：