Get all Magento orders between two dates with status new and placed by a customer with a specific customer attribute set

ordersbycustomeratt.php

<?php
require_once('app/Mage.php'); //Path to Magento
umask(0);
Mage::app();

$fromDateStart = '2017-05-01';
$toDateEnd = '2017-08-10';

$fromDate = date('Y-m-d H:i:s', strtotime($fromDateStart));
$toDate = date('Y-m-d H:i:s', strtotime($toDateEnd));

$tableNameCustomerEntity = Mage::getSingleton('core/resource')->getTableName('customer_entity');
$entityType = Mage::getModel('eav/entity_type')->loadByCode('customer');
$attribute = Mage::getModel('eav/entity_attribute')->loadByCode($entityType, 'YOUR_CUSTOMER_ATTRIBUTE');
$orderCollection = Mage::getResourceModel('sales/order_collection');
$orderCollection->getSelect()
    ->joinLeft(array('_table_'.$attribute->getAttributeCode() => $tableNameCustomerEntity.'_'.$attribute->getBackendType()),
        '_table_'.$attribute->getAttributeCode().'.entity_id = main_table.customer_id ' .
        ' AND _table_'.$attribute->getAttributeCode().'.attribute_id = '.$attribute->getAttributeId(),
        array($attribute->getAttributeCode() => '_table_'.$attribute->getAttributeCode().'.value')
    );
$orderCollection->getSelect()
    ->where('_table_' . $attribute->getAttributeCode() . '.value IS NOT NULL');

$orderCollection->addAttributeToFilter('status', array('in' => array('new')))
    ->addAttributeToFilter('created_at', array('from'=>$fromDate, 'to'=>$toDate));

$orders = $orderCollection;

foreach ($orders as $order) {
    print '<pre>';
    print_r($order->getData());
    print_r($order->getItemsCollection()->getData());
    print_r($order->getShippingAddress()->getData());
    print_r($order->getItemsCollection()->getData());
    print_r($order->getBillingAddress()->getData());
    print_r($order->getPayment()->getData());
    $orderCustomerId = $order->getCustomerId();
    print_r($orderCustomerData = Mage::getModel('customer/customer')->load($orderCustomerId));
    print_r($order->getDiscountDescription());
    print '</pre>';

}