if (isset($_POST['id_usuario'])) {
$results = array();
$results2 = array();
$price = 0;
$price2 = 0;
$inter1 = $inter2 = $forma_pago = '';
$inter = new Exchange();
$msn = "";
$nor = array();
if (isset($_POST['items_sale'])) {
$results = $inter->getItemSales($_POST['items_sale']);
}
if (isset($_POST['items_buy'])) {
$results2 = $inter->getItemBuys($_POST['items_buy']);
}
$valida = $inter->validAvailability($results2);
foreach ($results as $result) {
$price += round($result['price']);
}
foreach ($results2 as $result2) {
$price2 += round($result2['price']);
$nor[] = $result2['id'];
}
$aval = array_count_values($nor);
foreach ($valida as $idval => $val) {
if ($aval[$idval] > $val['quantity']) {
$error[$idval]['quantity'] = $val['quantity'];
$error[$idval]['name'] = $val['name'];
}
}
if (isset($error)) {
