lakalasdk/example/jingjian_api/update-fee.php

<?php
/**
 * 1.3 商户信息变更 -> 商户费率变更
 * 接口：/api/v3/tkbs/open_merchant_update_fee
 * 请求加密：无   返回解密：无
 */

$config = require __DIR__ . '/bootstrap.php';

$api = new \Lakala\OpenAPISDK\V3\Api\LakalaApi($config, \Lakala\OpenAPISDK\V3\Api\EncryptMode::NONE);

$request = new \Lakala\OpenAPISDK\V3\Model\ModelRequest();
$request->setReqData([
    'customer_no' => '100109984',
    'org_code' => JINGJIAN_ORG_CODE,
    'customer_fee_update_dto' => [
        'customer_no' => 100109984,
        'settle_type' => 'D0',
        'fees' => [
            ['fee' => 0.0058, 'top_fee' => null, 'fee_type' => 'CREDIT_CARD'],
        ],
    ],
]);

try {
    $response = $api->tradeApi('/api/v3/tkbs/open_merchant_update_fee', $request);
    print_r($response->getRespData());
    echo $response->getCode();
    print_r($response->getHeaders());
    echo $response->getOriginalText();
} catch (\Lakala\OpenAPISDK\V3\ApiException $e) {
    echo $e->getMessage();
}