lakalasdk/example/jingjian_api/customer-file-upload.php

<?php
/**
 * 1.1 商户进件 -> 商户进件文件上传
 * 接口：/api/v3/tkbs/customer/file/upload
 * 请求加密：否   返回解密：否
 * 注意：官方建议使用 PNG 格式，file_base64 需带解析头 data:image/png;base64,
 */

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

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

$data = file_get_contents(__DIR__ . '/../v2/business_licence.jpg');
$fileBase64 = 'data:image/png;base64,' . base64_encode($data);

$request = new \Lakala\OpenAPISDK\V3\Model\ModelRequest();
$request->setReqData([
    'file_base64' => $fileBase64,
    'img_type' => 'BUSINESS_LICENCE', //'ID_CARD_FRONT',
    'prefix' => 'reg',
    'sourcechnl' => 0,
    'is_ocr' => 'true', //'false'
]);

try {
    $response = $api->tradeApi('/api/v3/tkbs/customer/file/upload', $request);
    print_r($response->getRespData());
    // echo $response->getCode();
    // print_r($response->getHeaders());
    echo $response->getOriginalText(); // {"code":"000000","msg":"SUCCESS","resp_data":{"batch_no":"06023920260611001616220000","status":"01","url":"merchant/reg/20260611161936327518BUSINESS_LICENCE.jpeg","show_url":null}}%   
} catch (\Lakala\OpenAPISDK\V3\ApiException $e) {
    echo $e->getMessage();
}