微擎获取支付密钥文件pem的方法

//微擎获取支付密钥文件pem的方法
public function doPageTest(){
    global $_W;
    $setting = uni_setting_load('payment', $_W['uniacid']);
    $refund_setting = $setting['payment']['wechat_refund'];
    if (empty($refund_setting['key']) || empty($refund_setting['cert'])) {
        return error(1, '缺少微信证书！');
    }
    $cert = authcode($refund_setting['cert'], 'DECODE');
    $key = authcode($refund_setting['key'], 'DECODE');
    $cert_path = IA_ROOT . "/addons/zz_fsdfs/cert/apiclient_cert_" . $_W['uniacid'] . ".pem";
    $key_path = IA_ROOT . "/addons/zz_fsdfs/cert/apiclient_key_" . $_W['uniacid'] . ".pem";
    file_put_contents($cert_path, $cert);
    file_put_contents($key_path, $key);
    $res = array('cert'=>$cert_path,'key'=>$key_path);
    return json_encode($res);
}