public function format_phone($phone = '')
{
$return = '';
$phone = preg_replace("/[^0-9]/", "", $phone);
if(strlen($phone) === 7)
{
$return = preg_replace("/([0-9]{3})([0-9]{4})/", "$1-$2", $phone);
}
elseif(strlen($phone) === 10)
{
$return = preg_replace("/([0-9]{3})([0-9]{3})([0-9]{4})/", "($1) $2-$3", $phone);
}
else
{
$return = trim($phone);
}
return $return;
}
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