How to Retrieve Subdirectories from a Given Directory in PHP?

Retrieving Subdirectories from a Given Directory in PHP

Determining the subdirectories present within a specified directory often arises as a requirement in PHP programming. To effectively handle this task, you can leverage either the glob() function or a combination of glob() and array_filter().

Option 1: Utilizing glob() with GLOB_ONLYDIR

The glob() function, when used with the GLOB_ONLYDIR flag, offers a straightforward approach. This flag excludes files and the current (.), parent (..), and any directories beginning with a period (.), ensuring you solely obtain the subdirectories:

$subdirectories = glob('path/to/directory/*', GLOB_ONLYDIR);

Option 2: Leveraging array_filter() to Refine Results

Alternatively, you can combine glob() and array_filter() to filter out files and unwanted directories. However, this method may overlook directories that contain periods in their names, such as .config.

$directories = glob('path/to/directory/*');
$subdirectories = array_filter($directories, 'is_dir');

Applying the Function to Each Subdirectory

Once you have retrieved the subdirectories, you can apply a function to each of them using a loop:

foreach ($subdirectories as $subdirectory) {
    myFunction($subdirectory);
}

By employing either of these options, you can efficiently gather the subdirectories within a specified directory and utilize them in your PHP code as needed.

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