What potential pitfalls can arise when using scandir to read directories in PHP?

One potential pitfall when using scandir to read directories in PHP is that it also includes special entries like "." and "..", which can cause issues when processing the directory contents. To solve this, you can use the array_filter function to exclude these entries from the result.

$directory = "path/to/directory";
$files = array_diff(scandir($directory), array('..', '.'));

foreach($files as $file){
    // Process each file in the directory
}