PHP copy entire folder recursively

Use PHP to recursively implement a class that copies an entire folder

/*
 * Folder copy class,
 * Zhao Chun June 14, 2012 17:20:30
 * Blog: www.zhaochun.net
 */
class CopyFile
{
public $fromFile;
public $toFile;
/*
 * $fromFile Who to copy
 * $toFile Copy to that
 */
function copyFile($fromFile,$toFile){
 $this->CreateFolder($ toFile);
 $folder1=opendir($fromFile);
 while($f1=readdir($folder1)){
 if($f1!="." && $f1!=".."){
 $path2 ="{$fromFile}/{$f1}";
 if(is_file($path2)){
 $file = $path2;
 $newfile = "{$toFile}/{$f1}";
 copy($ file, $newfile);
 }elseif(is_dir($path2)){
 $toFiles = $toFile.'/'.$f1;
 $this->copyFile($path2,$toFiles);
 }
 }
 }
}
/*
 * Recursively create folders
 */
function CreateFolder($dir, $mode = 0777){
 if (is_dir($dir) || @mkdir($dir,$mode)){
 return true;
 }
 if (!$this->CreateFolder(dirname($dir),$mode)){
 return false;
 }
 return @mkdir($dir, $mode);
}
}
//Usage method
//Introduce this class, directly new copyFile('Who to copy', 'Copy to that');
//$file = new CopyFile('aaaa/aaaaa','bbbbb/bbbb') ;
?>