Validar numero de telefono en muchos formatos y modificarlos segun un formato especifico

gistfile1.txt

The Expression

^[+]?([\d]{0,3})?[\(\.\-\s]?([\d]{3})[\)\.\-\s]*([\d]{3})[\.\-\s]?([\d]{4})$
This regular expression will match any of the following U.S. numbers:

555 555 5555
(555) 555-5555
(555)555-5555
555-555-5555
555.555.5555
5555555555
0-000-000-0000
0.000.000.0000
0 000 000 0000
00000000000
+0-000-000-0000
+0.000.000.0000
+0 000 000 0000
+00000000000

Model.php

		public function formatPhone($phone)
		{
			if ( preg_match('/^[+]?([\d]{0,3})?[\(\.\-\s]?([\d]{3})[\)\.\-\s]*([\d]{3})[\.\-\s]?([\d]{4})$/', $phone, $matches)) {

				$matches[1] = ($matches[1]=='') ? '+1' : $matches[1];

				return $matches[1].$matches[2].$matches[3].$matches[4];
			}
			else {
				return return Response::json(array(
					'success'=>'false',
					'msg'		 =>'Invalid number format'
				));
				// echo $tel;
			}
		}