Обработка формы битрикс (пример)

<?
require($_SERVER['DOCUMENT_ROOT']."/bitrix/modules/main/include/prolog_before.php");
require($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/classes/general/captcha.php");
require('PHPMailer/PHPMailerAutoload.php');
global $APPLICATION;
CModule::IncludeModule('iblock');

if($_SERVER["REQUEST_METHOD"] == "POST"){

	$cpt = new CCaptcha();
	$captchaPass = COption::GetOptionString("main", "captcha_password", "");
	$arResult = array(
		'errors' => array(),
		'captcha' => htmlspecialcharsbx($APPLICATION->CaptchaGetCode())
	);
	$town = trim($_POST['PROPERTY[66]']);
	$metro = trim($_POST['PROPERTY[67]']);
	$time = trim($_POST['PROPERTY[68][0]']);
	$phone = trim($_POST['PROPERTY[75][0]']);
	$address = trim($_POST['PROPERTY[70][0]']);
	$name = trim($_POST['PROPERTY[71][0]']);
	$service = trim($_POST['PROPERTY[72][0]']);
	$opis = trim($_POST['PROPERTY[73][0][VALUE][TYPE]']);
	$file = trim($_POST['PROPERTY_FILE_74_0']);

	$captcha_sid = trim($_POST['captcha_sid']);
	$captcha = trim($_POST['captcha']);
	$subject = 'Форма добавления объектов';
	// проверка
	if (strlen($opis) < 3 || strlen($name) < 5 || strlen($phone) < 5) {
		$arResult["errors"][] = 'Проверьте правильность заполнения полей';
	}

	if (strlen($captcha) > 0 && strlen($captcha_sid) > 0){
		if (!$cpt->CheckCodeCrypt($captcha, $captcha_sid, $captchaPass)) {
			$arResult["errors"][] = 'Неправильно введен текст с картинки';
		}
	} else {
		$arResult["errors"][] = 'Не введен текст с картинки';
	}

  if (empty($arResult['errors'])) {
  		$message = "Тема: Добавление нового объекта\r\n";
  		$message .= "Город: $town\r\n";
  		$message .= "Метро: $metro\r\n";
  		$message .= "Часы работы: $time\r\n";
  		$message .= "Телефон: $phone\r\n";
  		$message .= "Адрес: $address\r\n";
  		$message .= "Название: $name\r\n";
  		$message .= "Услуги: $service\r\n";
  		$message .= "Описание: $opis\r\n";


 		$mail = new PHPMailer();

		$mail->CharSet = 'UTF-8';
		$mail->From = $name;
		$mail->AddAddress('[email protected]');

		$mail->Subject = $subject;
		$mail->Body = $message;
		if (!empty($_FILES['PROPERTY_FILE_74_0'])) {
				$mail->AddAttachment($_FILES['PROPERTY_FILE_74_0']['tmp_name'], $_FILES['PROPERTY_FILE_74_0']['name'], $encoding = "base64", $type = "application/octet-stream");
		}

			if( ! $mail->send() ) {
				$arResult["errors"][] = $mail->ErrorInfo;
			}

	}

	echo json_encode($arResult);
	die();
}
?>