What is the purpose of creating a function in a class that recursively traverses a folder and outputs subdirectories and files in PHP?

When working with file systems in PHP, it can be useful to have a function in a class that recursively traverses a folder and outputs its subdirectories and files. This can be helpful for tasks such as generating a tree view of a directory structure or performing operations on all files within a folder and its subfolders. Below is a PHP code snippet that demonstrates how to create a function in a class that recursively traverses a folder and outputs its subdirectories and files: 

class FolderTraverser {
    public function traverseFolder($folder) {
        $files = scandir($folder);
        
        foreach ($files as $file) {
            if ($file != '.' && $file != '..') {
                $path = $folder . '/' . $file;
                
                if (is_dir($path)) {
                    echo "Directory: " . $path . "\n";
                    $this->traverseFolder($path);
                } else {
                    echo "File: " . $path . "\n";
                }
            }
        }
    }
}

// Usage example
$folderTraverser = new FolderTraverser();
$folderTraverser->traverseFolder('/path/to/folder');

Keywords

PHP function class recursion directory traversal

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