<form> contactId: <input type="text" name="contactId" value="<?php if (isset($_REQUEST['contactId'])) { echo htmlspecialchars($_REQUEST['contactId']); } ?> "><br/> data: <input type="text" name="data" value="<?php if (isset($_REQUEST['data'])) { echo htmlspecialchars($_REQUEST['data']); } ?> "><br/> <input type="submit"> <input type="hidden" name="go"> </form> <?php include '../infusionsoft.php'; include 'testUtils.php'; if (isset($_REQUEST['go'])) { $out = Infusionsoft_ContactService::update($_REQUEST['contactId'], $_REQUEST['data']); var_dump($out); }