function ddbLogSMS() - Sample for DynamoDB/Twilio. For http://snowulf.com/2013/05/13/wrapping-my-brain-around-dynamodb/

gistfile1.php

function ddbLogSMS($act,$data){

        date_default_timezone_set("UTC");
        $now = time();
        $upd = array();
        $upd['ACTION']  =   array("Action" => \Aws\DynamoDb\Enum\AttributeAction::PUT,
                                        "Value" => array(
                                                Type::STRING => $act
                                        )
                                );

        $upd['DATE_RFC822'] =   array("Action" => \Aws\DynamoDb\Enum\AttributeAction::PUT,
                                        "Value" => array(
                                                Type::STRING => date(DATE_RFC822,$now)
                                        )
                                );

        foreach($data as $key => $val){
                if($key != 'SmsSid' && $key != "sid" && strlen($val)>0){
                        $upd[$key] =  array("Action" => \Aws\DynamoDb\Enum\AttributeAction::PUT,
                                                "Value" => array(
                                                        Type::STRING => $val
                                                )
                                        );
                }
        }

        if($act == "RECIEVED"){
                $sid = $data['SmsSid'];
        }
        if($act == "SENT"){
                $sid = $data->sid;
        }
        $ddb = $GLOBALS["aws"]->get('dynamodb');
        $res = $ddb->updateItem(array(
                "TableName" => DDBLOG,
                "Key" => array(
                        "SmsSid" => array(
                                Type::STRING => $sid
                        ),
                        "TIMESTAMP" => array(
                                Type::NUMBER => $now
                        )
                ),
                "AttributeUpdates" => $upd
        ));


} //end ddbLogSMS();