Fatal error: Uncaught Exception: PagSeguroLibrary: cURL library is required. in C:\Apache24\htdocs\library\Zend\PagSeguro\source\PagSeguroLibrary\utils\PagSeguroHttpConnection.class.php:36 Stack trace: #0 C:\Apache24\htdocs\library\Zend\PagSeguro\source\PagSeguroLibrary\service\PagSeguroPreApprovalSearchService.class.php(336): PagSeguroHttpConnection->__construct() #1 C:\Apache24\htdocs\library\Zend\PagSeguro\source\examples\preapproval\search\searchPreApprovalByNotification.php(45): PagSeguroPreApprovalSearchService::findByNotification(Object(PagSeguroAccountCredentials), '29B0BEC9D653D65...') #2 C:\Apache24\htdocs\library\Zend\PagSeguro\source\examples\preapproval\search\searchPreApprovalByNotification.php(71): SearchPreApproval::searchByNotification() #3 {main} thrown in C:\Apache24\htdocs\library\Zend\PagSeguro\source\PagSeguroLibrary\utils\PagSeguroHttpConnection.class.php on line 36