PHP: SoapClient Result Output As JSON

SoapClientJsonOutput.php

 <?php

$client = new SoapClient($CFG->studioServicesCheckCodingSOAPWsdl);
$params = array(
    'businessUnit' => $_REQUEST['businessUnit'],
    'market' => $_REQUEST['market'],
    'projectId' => $_REQUEST['projectId'],
    'resourceType' => $_REQUEST['resourceType'],
    'resourceCategory' => $_REQUEST['resourceCategory']
);
$operationResult = $client->CheckCoding($params);

echo json_encode($operationResult);

?>