xyzshop/helper/refill/api/xyz/yifa/RefillPhone.php

<?php
namespace refill\yifa;

require_once(BASE_HELPER_RAPI_PATH . '/yifa/config.php');

use refill;
use Log;

class RefillPhone extends refill\IRefillPhone
{
    public function __construct($cfgs)
    {
        parent::__construct($cfgs);
    }

    private function req_params(int $phone, int $amount ,string $order_sn)
    {
        $params['app_id'] = config::APP_ID;
        $params['nonce_str'] = strtoupper($this->createNoncestr());

        $params['timestamp'] = time();
        $params['order_sn'] = $order_sn;
        $params['phone'] = $phone;
        $params['amount'] = $amount;
        $params['notify_url'] = config::NOTIFY_URL;
        return $params;
    }

    public function add($card_no, $card_type,$amount,$params)
    {
        $order_sn = $params['order_sn'];
        $params = $this->req_params($card_no,$amount,$order_sn);
        $sign = $this->sign($params);
        $params['sign'] = $sign;

        $resp = http_request(config::ORDER_URL,$params,'POST',false,config::ExtHeaders);

        if (empty($resp)) {
            return [false,'系统错误',true];
        }

        $resp = json_decode($resp,true);
        if (empty($resp)) {
            return [false, '系统错误', true];
        } elseif ($resp['code'] == 10000 && $resp['message'] == 'success') {
            $result = $resp['result'];
            return [true, $result['order_sn'], false];
        } else {
            return [false, $resp['message'], false];
        }
    }

    public function query($refill_info)
    {

    }

    /**
     * 	作用：产生随机字符串，不长于32位
     */
    public function createNoncestr( $length = 32 )
    {
        $chars = "abcdefghijklmnopqrstuvwxyz0123456789";
        $str ="";
        for ( $i = 0; $i < $length; $i++ )  {
            $str.= substr($chars, mt_rand(0, strlen($chars)-1), 1);
        }
        return $str;
    }

    private function sign($params)
    {
        ksort($params);

        $app_secret = config::APP_SECRET;
        $content = $app_secret;
        foreach ($params as $key => $val)
        {
            if(empty($val)){
                continue;
            }
            $content .= "{$key}{$val}";
        }
        $content .= $app_secret;
        return strtoupper(md5($content));
    }
}