Someone

	function validate_file_upload_name($fname, $ext)	{		$fname = trim($fname);		if(!empty($fname))		{			$fname = str_replace('.'.$ext,'',$fname);			$fname = preg_replace('/\W/', '', $fname);			if(strlen($fname) > 30)			{	$fname = substr($fname,0,30);	}		}		return $fname;	}