.description.php

См. документацию.

<?php
use Bitrix\Main\Loader,
    Bitrix\Main\Localization\Loc,
    Bitrix\Sale\PaySystem;
 
Loc::loadMessages(__FILE__);
 
$isAvailable = PaySystem\Manager::HANDLER_AVAILABLE_TRUE;
 
$licensePrefix = Loader::includeModule('bitrix24') ? \CBitrix24::getLicensePrefix() : '';
$portalZone = Loader::includeModule('intranet') ? CIntranetUtils::getPortalZone() : '';
 
if (Loader::includeModule('bitrix24'))
{
    if ($licensePrefix !== 'ua')
    {
        $isAvailable = PaySystem\Manager::HANDLER_AVAILABLE_FALSE;
    }
}
elseif (Loader::includeModule('intranet') && $portalZone !== 'ua')
{
    $isAvailable = PaySystem\Manager::HANDLER_AVAILABLE_FALSE;
}
 
$data = [
    'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_NAME'),
    'DESCRIPTION' => Loc::getMessage('SALE_HPS_LIQPAY_DESCRIPTION'),
    'SORT' => 400,
    'IS_AVAILABLE' => $isAvailable,
    'CODES' => [
        'LIQPAY_MERCHANT_ID' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_MERCHANT_ID'),
            'GROUP' => 'CONNECT_SETTINGS_LIQPAY',
            'SORT' => 100,
        ],
        'LIQPAY_SIGN' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_SIGN'),
            'GROUP' => 'CONNECT_SETTINGS_LIQPAY',
            'SORT' => 200,
        ],
        'LIQPAY_PATH_TO_RESULT_URL' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_PATH_TO_RESULT_URL'),
            'DESCRIPTION' => Loc::getMessage('SALE_HPS_LIQPAY_PATH_TO_RESULT_URL_DESC'),
            'SORT' => 300,
            'GROUP' => 'CONNECT_SETTINGS_LIQPAY',
        ],
        'LIQPAY_PATH_TO_SERVER_URL' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_PATH_TO_SERVER_URL'),
            'SORT' => 400,
            'GROUP' => 'CONNECT_SETTINGS_LIQPAY',
            'DEFAULT' => [
                'PROVIDER_VALUE' => 'https://'.$_SERVER['HTTP_HOST'].'/bitrix/tools/sale_ps_result.php',
                'PROVIDER_KEY' => 'VALUE'
            ]
        ],
        'PAYMENT_ID' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_ORDER_ID'),
            'SORT' => 500,
            'GROUP' => 'PAYMENT',
            'DEFAULT' => [
                'PROVIDER_VALUE' => 'ID',
                'PROVIDER_KEY' => 'PAYMENT'
            ]
        ],
        'PAYMENT_CURRENCY' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_CURRENCY'),
            'SORT' => 600,
            'GROUP' => 'PAYMENT',
            'DEFAULT' => [
                'PROVIDER_VALUE' => 'CURRENCY',
                'PROVIDER_KEY' => 'PAYMENT'
            ]
        ],
        'PAYMENT_SHOULD_PAY' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_SHOULD_PAY'),
            'SORT' => 700,
            'GROUP' => 'PAYMENT',
            'DEFAULT' => [
                'PROVIDER_VALUE' => 'SUM',
                'PROVIDER_KEY' => 'PAYMENT'
            ]
        ],
        'BUYER_PERSON_PHONE' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_PHONE'),
            'SORT' => 800,
            'GROUP' => 'BUYER_PERSON',
            'DEFAULT' => [
                'PROVIDER_VALUE' => 'PHONE',
                'PROVIDER_KEY' => 'PROPERTY'
            ]
        ],
        'LIQPAY_PAY_METHOD' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_PAYMENT_PM'),
            'SORT' => 900,
            'GROUP' => 'CONNECT_SETTINGS_LIQPAY'
        ],
        'LIQPAY_PAYMENT_DESCRIPTION' => [
            'NAME' => Loc::getMessage('SALE_HPS_LIQPAY_PAYMENT_DESCRIPTION'),
            'DESCRIPTION' => Loc::getMessage('SALE_HPS_LIQPAY_PAYMENT_DESCRIPTION_DESC'),
            'SORT' => 1000,
            'GROUP' => 'CONNECT_SETTINGS_LIQPAY',
            'DEFAULT' => [
                'PROVIDER_KEY' => 'VALUE',
                'PROVIDER_VALUE' => Loc::getMessage('SALE_HPS_LIQPAY_PAYMENT_DESCRIPTION_TEMPLATE'),
            ]
        ],
    ]
];