Are there any best practices or specific PHP functions that can simplify the process of reading files from folders and subfolders?

When reading files from folders and subfolders in PHP, the RecursiveDirectoryIterator and RecursiveIteratorIterator classes can be used to simplify the process. These classes allow you to iterate over directories and their subdirectories recursively, making it easier to read files from nested folder structures. 

$directory = 'path/to/directory';

$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($directory));

foreach ($iterator as $file) {
    if ($file->isFile()) {
        echo $file->getPathname() . "\n";
    }
}

Keywords

file handling directory traversal recursive function glob scandir

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