telefon numarası bölme?

$telefon='5321234567';

print telefonbol($telefon);

// 532 123 4567

function telefonbol($a){
	$b=substr($a, 0, 3);
	$c=substr($a, 3, 3);
	$d=substr($a, 6, 8);
	$last=$b.' '.$c.' '.$d;
	return $last;
}

jQuery(function($){
   $("#telefon").mask("9 (999) 999-9999");
});

<input type="text" id="telefon" placeholder="Telefon Numarası" />

**
* Converts phone numbers to the formatting standard
*
* @param   String   $num   A unformatted phone number
* @return  String   Returns the formatted phone number
*/
function formatPhone($num)
{
$num = preg_replace('/[^0-9]/', '', $num);
 
$len = strlen($num);
if($len == 7)
$num = preg_replace('/([0-9]{3})([0-9]{4})/', '$1-$2', $num);
elseif($len == 10)
$num = preg_replace('/([0-9]{3})([0-9]{3})([0-9]{4})/', '($1) $2-$3', $num);
 
return $num;
}
 
// echo formatPhone('1 208 - 386 2934');
// will print: (208) 386-2934 </code>