Help with a PHP function I'm writing.

Well, this definitely is some code that stumps me. I'll post my source, then what I input, then what I want outputted.

<?php
ob_start();

class Index
{
	# Current Directory
	public $dir;
	
	# File List
	public $file_array;
	
	# Directory Buffer
	public $buffer;
	
	# When the class is loaded...
	function __construct()
	{
		
		# Set the directory.
		$this->dir = getcwd();
		
		# Put the search into a buffer.
		$this->file_array = $this->recursive_search($this->dir);

	}
	
	# Start the script.
	function start()
	{
		$this->retrieve_data($this->file_array);
	}
	
	function recursive_search($source_dir)
	{
		if($fp = @opendir($source_dir))
		{
			$source_dir = rtrim($source_dir, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;
			$filedata = array();
			
			while (FALSE !== ($file = readdir($fp)))
			{
				if ((strncmp($file, '.', 1) == 0) OR ($file == '.' OR $file == '..'))
				{
					continue;
				}
				
				if(@is_dir($source_dir.$file))
				{
					$temp = array();
					$temp = $this->recursive_search($source_dir.$file.DIRECTORY_SEPARATOR);
					
					$filedata[$file] = $temp;
				}
				else
				{
					$filedata[] = $file;
				}
			}
	
			closedir($fp);
			return $filedata;
		}
		else
		{
			return FALSE;
		}
	}
	
	/****************************
	* THIS IS WHERE THE ISSUE IS!
	****************************/
	function retrieve_data($file_array)
	{	
		foreach ($file_array as $key => $value)
		{
			$this->buffer = rtrim($key, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;
			
			foreach( $value as $k => $v )
			{
				$this->buffer = $this->buffer.rtrim($k, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;
				
				foreach ($v as $a => $b)
				{
					echo $this->buffer.$b."\n\n";
				}
			}
		}
	}
	/****************************
	* END OF THE ISSUE!
	****************************/
	
}

# Run on load.
$index = new Index;

# For testing purposes.. load this data:
$index->file_array = array(
	'AFI' => array(
		'Album 1' => array(
		'0' => 'Song 1.mp3',
		'1' => 'Song 2.mp3',
		'2' => 'Song 3.mp3'
		),
		'Album 2' => array(
		'0' => 'Song 1.mp3',
		'1' => 'Song 2.mp3',
		'2' => 'Song 3.mp3'
		)
	),
	'Arctic Monkeys' => array(
		'Album 1' => array(
		'0' => 'Song 1.mp3',
		'1' => 'Song 2.mp3',
		'2' => 'Song 3.mp3'
		),
		'Album 2' => array(
		'0' => 'Song 1.mp3',
		'1' => 'Song 2.mp3',
		'2' => 'Song 3.mp3'
		)
	)
);

$index->start();

# Output everything.
$source = ob_get_contents();
ob_end_clean();

echo '<pre>',$source,'</pre>';

/** END OF FILE **/

PHP:

THE EXAMPLE INPUT:

# For testing purposes.. load this data:
$index->file_array = array(
	'AFI' => array(
		'Album 1' => array(
		'0' => 'Song 1.mp3',
		'1' => 'Song 2.mp3',
		'2' => 'Song 3.mp3'
		),
		'Album 2' => array(
		'0' => 'Song 1.mp3',
		'1' => 'Song 2.mp3',
		'2' => 'Song 3.mp3'
		)
	),
	'Arctic Monkeys' => array(
		'Album 1' => array(
		'0' => 'Song 1.mp3',
		'1' => 'Song 2.mp3',
		'2' => 'Song 3.mp3'
		),
		'Album 2' => array(
		'0' => 'Song 1.mp3',
		'1' => 'Song 2.mp3',
		'2' => 'Song 3.mp3'
		)
	)
);

PHP:

What I'd like it to parse too:

AFI\Album 1\Song 1.mp3
AFI\Album 1\Song 2.mp3
AFI\Album 1\Song 3.mp3
AFI\Album 2\Song 1.mp3
AFI\Album 2\Song 2.mp3
AFI\Album 2\Song 3.mp3
Arctic Monkeys\Album 1\Song 1.mp3
Arctic Monkeys\Album 1\Song 2.mp3
Arctic Monkeys\Album 1\Song 3.mp3
Arctic Monkeys\Album 2\Song 1.mp3
Arctic Monkeys\Album 2\Song 2.mp3
Arctic Monkeys\Album 2\Song 3.mp3

Code (markup):

----------------------------------------------

The challenge to this program is that it needs to display properly for each directory. So if there are more (or less) directories with files, it must be able to sort through everything without having issues.

Cheers

 

that's easy by doing foreach()

foreach ($file_array as $kn => $dir) {
	if(is_array($dir)) {
		foreach ($dir as $k => $v) {			
			foreach ($v as $song) {
				print "$kn/$k/";
				print $song."<br/>";
			}
		}	
}
}

PHP:

 

I know it involves foreach loops, but I need it to infinitely recurse through the directory.

Works for:
/
/afi
/afi/album 1/
/afi/album 2/more/dir/in/here

 

you need to do is_array checks infinitely too, get arr sizes, I think

 

Try this method

    function retrieve_data($file_array,$prefix='')
    {
        foreach ($file_array as $key => $value)
        {
                if (is_array($value)) {
                        $this->retrieve_data($value,$prefix.rtrim($key, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR);
                } else {
                        echo $prefix.$value."\n";
                }
        }
    }

PHP:

$index->retrieve_data($index->file_array);

PHP: