<?php //Include the composer autoloader ... require_once 'vendor/autoload.php'; //... and add the namespaces of the classes used. use phpsap\classes\Config\ConfigTypeA; use phpsap\DateTime\SapDateTime; use phpsap\saprfc\SapRfc; /**  * Create an instance of the SAP remote function using its  * name, input parameters, and connection configuration.  *  * The imaginary SAP remote function requires a  * date as input and will return a date as output.  *  * In this case the configuration array is defined manually.  */ $result = (new SapRfc( 'MY_COOL_SAP_REMOTE_FUNCTION', [ 'IV_DATE' => (new DateTime('2019-12-31')) ->format(SapDateTime::SAP_DATE) ], new ConfigTypeA([ ConfigTypeA::JSON_ASHOST => 'sap.example.com', ConfigTypeA::JSON_SYSNR => '999', ConfigTypeA::JSON_CLIENT => '001', ConfigTypeA::JSON_USER => 'username', ConfigTypeA::JSON_PASSWD => 'password' ]) ))->invoke(); //The output array contains a DateTime object. echo $result['OV_DATE']->format('Y-m-d') . PHP_EOL;