PHP Decode

<? 
$method = 'find'; 
 
echo "mem before:".memory_get_peak_usage(true)."
"; 
echo "Starting $method()
"; 
clearstatcache(); 
$startTime = microtime(true); 
$allFiles = DirectoryParser::$method('C:/'); 
echo "Zeit: ".(microtime(true) - $startTime)." sec
"; 
echo "mem after:".memory_get_peak_usage(true)."
"; 
echo count($allFiles)."

"; 
 
class DirectoryParser 
{ 
	public static function createTestFolders($dir) { 
		for($i=0; $i<10000; $i++) { 
			@mkdir($dir.'/'.$i); 
			for ($u=0; $u<10; $u++) { 
				touch($dir.'/'.$i.'/'.rand(10000, 999999).'.txt'); 
			} 
		} 
	} 
 
	public static function dirRead($dir, &$fileinfo = array()) { 
		if ($handle = dir($dir)) { 
			while (false !== ($file = $handle->read())) { 
				if (!is_dir($dir.'/'.$file)) { 
					$fileinfo[] = array($file, filesize($dir.'/'.$file)); 
				} elseif (is_dir($dir.'/'.$file) && $file != '.' && $file != '..') { 
					echo $file."
"; 
					self::dirRead($dir.'/'.$file, $fileinfo); 
				} 
			} 
			$handle->close(); 
		} 
		return $fileinfo; 
	} 
 
	public static function find($dir) { 
		echo substr(php_uname(), 0, 7); 
		if (substr(php_uname(), 0, 7) == "Windows") { 
			foreach (explode("
",` cd "$dir" && dir /S /B /A-D `) as $fullFilename) { 
				if ($fullFilename != '') { 
					echo $fullFilename."
"; 
					$fileinfo[] = array($fullFilename, filesize($fullFilename)); 
				} 
			} 
		} else { 
			foreach (explode("
",` cd $dir && find -maxdepth 3 -type f ! -name ".*" -printf "%f
%s
" `) as $fileInfos) { 
				if ($fileInfos != '') { 
					$fileinfo[] = explode("
", $fileInfos); 
				} 
			} 
		} 
		return $fileinfo; 
	} 
 
	public static function glob($dir, &$fileinfo = array()) { 
		foreach (glob($dir.'/*') as $file) { 
			if (is_dir($file)) { 
				self::glob($file, $fileinfo); 
			} else { 
				$fileinfo[] = array(basename($file), filesize($file)); 
			} 
		} 
		return $fileinfo; 
	} 
 
	public static function scandir($outerDir){ 
		$dirs = array_diff(scandir($outerDir), array(".", "..")); 
		$fileArray = array(); 
		foreach ($dirs as $d) { 
			if (is_dir($outerDir."/".$d)) { 
				$fileArray = array_merge($fileArray, self::scandir($outerDir."/".$d)); 
			} else { 
				$fileArray[] = array($d, filesize($outerDir."/".$d)); 
			} 
		} 
		return $fileArray; 
	} 
 
	public static function opendir($dir, &$fileinfo = array()) { 
		if ($handle = opendir($dir)) { 
			while (false !== ($file = readdir($handle))) { 
				if (!is_dir($dir.'/'.$file)) { 
					$fileinfo[] = array($file, filesize($dir.'/'.$file)); 
				} elseif (is_dir($dir.'/'.$file) && $file != '.' && $file != '..') { 
					self::opendir($dir.'/'.$file, $fileinfo); 
				} 
			} 
			closedir($handle); 
		} 
		return $fileinfo; 
	} 
 
	public static function directoryIterator($dir) { 
		$iterator = new RecursiveDirectoryIterator($dir); 
		foreach(new RecursiveIteratorIterator($iterator, RecursiveIteratorIterator::CHILD_FIRST) as $file) { 
			if (false == $file->isDir()) { 
				$fileinfo[] = array($file->getFilename(), $file->getSize()); 
			} 
		} 
		return $fileinfo; 
	} 
} ?>