支付宝EasySdk（PHP版）支付回调验签无法通过问题

亲身经历，官方文档坑
THPHP6，正常导入

composer require alipaysdk/easysdk

直接上内容，官方验签

//1. 设置参数（全局只需设置一次）Factory::setOptions(getOptions());
$result = Factory::payment()->common()->verifySign($_POST);

然而不好意思出现错误无法通过；主要原因fund_bill_list数据JSON字符串传递时序列化问题

// 请求数据处理
$data = request()->post();
$data = http_build_query($data);
$data = explode('&', $data);
$new_data = [];
foreach ($data as $key=>$val){
$rows = explode('=', $val);
    $new_data[$rows[0]] = urldecode($rows[1]);
}
if (!empty($new_data['fund_bill_list'])){
    $new_data['fund_bill_list'] = str_replace('"', '"', $new_data['fund_bill_list']);
    $json = json_decode($new_data['fund_bill_list'], true);
    if (json_last_error() !== JSON_ERROR_NONE) {
         $this->consoleLog('Failed to decode JSON: ' . json_last_error_msg());
    }
    $new_data['fund_bill_list'] = json_encode($json);
}
// 才能去验证
$result = Factory::payment()->common()->verifySign($new_data);

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