unifi-php-api/examples/create_voucher.php

<?php
/**
 * PHP API usage example
 *
 * contributed by: Art of WiFi
 * description:    example basic PHP script to create a set of vouchers, returns an array containing the newly created vouchers
 */

/**
 * using the composer autoloader
 */
require_once 'vendor/autoload.php';

/**
 * include the config file (place your credentials etc. there if not already present)
 * see the config.template.php file for an example
 */
require_once 'config.php';

/**
 * minutes the voucher is valid after activation (expiration time)
 */
$voucher_expiration = 2000;

/**
 * the number of vouchers to create
 */
$voucher_count = 1;

/**
 * The site where you want to create the voucher(s)
 */
$site_id = '<enter your site id here>';

/**
 * initialize the UniFi API connection class and log in to the controller
 */
$unifi_connection = new UniFi_API\Client(
    $controlleruser,
    $controllerpassword,
    $controllerurl,
    $site_id,
    $controllerversion
);

$set_debug_mode = $unifi_connection->set_debug($debug);
$loginresults   = $unifi_connection->login();

/**
 * then we create the required number of vouchers with the requested expiration value
 */
$voucher_result = $unifi_connection->create_voucher($voucher_expiration, $voucher_count);

/**
 * we then fetch the newly created vouchers by the create_time returned
 */
$vouchers = $unifi_connection->stat_voucher($voucher_result[0]->create_time);

/**
 * provide feedback (the newly created vouchers) in json format
 */
echo json_encode($vouchers, JSON_PRETTY_PRINT);