Using mkdir(), directory not being created - php

Question

$ad_title = $_POST['title'];
$ad_content = $_POST['content-ads'];
$ad_region = $_POST['region'];
if (!is_dir("uploads/".$ad_region)) {
// dir doesn't exist, make it
mkdir("uploads/".$ad_region);
echo "directory created!";
}
else {
echo "directory already exist!";
}
I am making a site and I am developing it in localhost for now. My save.php file and the uploads folders where the codes above is saved in the local directory
localhost/system/modules/new/
When I relocated the save.php file and the uploads folder in the directory
localhost/system/
all seems to be working now. But I want it to work in the
localhost/system/modules/new/
directory for better organization. Any help on how to make it work?

Answer 1

First thing I'd do is ensure that the paths are where you think they are.
Try this out
$ad_title = $_POST['title'];
$ad_content = $_POST['content-ads'];
$ad_region = $_POST['region'];
// Make sure the "uploads" directory is relative to this PHP file
$uploads = __DIR__ . '/uploads';
$path = $uploads . DIRECTORY_SEPARATOR . $ad_region;
// ensure that the path hasn't been tampered with by entering any relative paths
// into $_POST['region']
if (dirname($path) !== $uploads) {
throw new Exception('Upload path has been unacceptably altered');
}
if (!is_dir($path)) {
if (!mkdir($path, 0755, true)) {
// you should probably catch this exception somewhere higher up in your
// execution stack and log the details. You don't want end users
// getting information about your filesystem
throw new Exception(sprintf('Failed to create directory "%s"', $path));
}
// Similarly, you should only use this for debugging purposes
printf('Directory "%s" created', $path);
} else {
// and this too
printf('Directory "%s" already exists', $path);
}

Answer 2

you can use relative path ../ such as mkdir("../uploads/".$ad_region)
or use absolution path, such as mkdir("/localhost/system/modules/new/".$ad_region)
ref: http://php.net/manual/en/function.mkdir.php

Answer 3

You can use absolute file paths, like "/var/www/system/modules/new/$ad_region" (unix structure).
Or, for example, if your save.php file is in directory "system" and you want to create the directory in "system/modules/new/" you can do
mkdir("./modules/new/$ad_region");
There is a third parameter for mkdir, recursive, which allows the creation of nested directories. For the second parameter you can simple pass 0, for example
mkdir("./modules/new/$ad_region", 0, true);