app = angular.module("app",[]);
app.controller("controlador", ["$scope", "$http",

function($scope, $http){
$scope.items = [];

$scope.submitForm = function() {
var dados = $('#meu_form').serialize();

$http({
method : 'POST',
url : 'pagina.php',
data : {dados : dados, scope: $scope.items },
headers : {'Content-Type': 'application/x-www-form-urlencoded'}
}).success(function(data, status, headers, config) {
alert(data);
}).error(function(data, status, headers, config) {
$scope.status = status;

<?php
include 'nfe/admin/includes/configuracao.php';

$errors = array();
$data = array();

//$dados = json_decode('{"scope": [{"nome":"Lucas", "email":"blabla@hotmail.com", "soma": 1}], "dados": "nome=fname&email=femail&mat=fmat"}', true);
$dados = json_decode(file_get_contents('php://input'), true);

$p = $dados['dados']; // pega o serializado do AJAX
parse_str($p, $dados['dados']); // tranforma em array de PHP

$result = 'scope(';

foreach($dados['scope'] as $value)
foreach($value as $item)
$result .= $item.', ';