lakalasdk/example/jingjian_api/merchant-info.php

<?php
/**
 * 1.3 商户信息查询 -> 获取商户信息
 * 接口：/api/v3/tkbs/open_merchant_info
 * 请求加密：SM4   返回解密：SM4
 */

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

$api = new \Lakala\OpenAPISDK\V3\Api\LakalaApi($config, \Lakala\OpenAPISDK\V3\Api\EncryptMode::BOTH);

$request = new \Lakala\OpenAPISDK\V3\Model\ModelRequest();
$request->setReqData([
    //'merchant_no' => "100155299",//,"100155305", //"100155299", //"100155296",
    'customer_no' => '100155305',
    'org_code' => JINGJIAN_ORG_CODE,
]);

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