Line break in a Twilio SMS

linebreak.php

<?php
$ACCOUNT_SID = "ACxxxxxxxxxxxxxxxxxxxxxxxxxxx";
$AUTH_TOKEN = "yyyyyyyyyyyyyyyyyyyyyyyyyyyyy";
$TWILIO_NUMBER = "+1aaabbbcccc";
$TEST_NUMBER = "+1xxxyyyzzzz";

include 'Services/Twilio.php';

$client = new Services_Twilio($ACCOUNT_SID, $AUTH_TOKEN);
$client->account->sms_messages->create(
        $TWILIO_NUMBER,
        $TEST_NUMBER,
        "This is a test with a linebreak.\n\n Totally."
);
?>

Just to note you need to use double quoted PHP strings for this to work (else it just shows \n\n).