zhuishuyun_quickapp/app/Http/Controllers/WapBrowser/BaseController.php

<?php

namespace App\Http\Controllers\WapBrowser;
use Illuminate\Routing\Controller;

use Illuminate\Http\Request;
class BaseController extends Controller
{

    /**
     * 公众号接口签名密钥
     * @var string
     */
    protected $secret_key = 'zhuishuyun#_2017';

    /**
     * 渠道id
     * @var
     */
    protected $distribution_channel_id;

    function __construct(Request $request)
    {
        $domain = _domain();
        $this->distribution_channel_id = str_replace('bsite','',explode('.',$domain)[0]);
        if(!is_numeric($this->distribution_channel_id)){
            $this->distribution_channel_id = decodeDistributionChannelId($this->distribution_channel_id);
        }
    }

    /**
     * 公众号签名@华灯初上
     * @param $params
     * @return string
     */
    protected function getSign($params)
    {
        $url = $this->arr_to_url($params, false);
        $url = $url . '&key=' . $this->secret_key;

        $sign = md5($url);
        return $sign;
    }

    /**
     * 公众号签名@华灯初上
     * @param $array
     * @param bool $has_sign
     * @return string
     */
    protected function arr_to_url($array, $has_sign = false)
    {
        ksort($array);
        reset($array);
        $arg = "";
        while (list ($name, $val) = each($array)) {
            if ($name == 'sign' && !$has_sign) continue;
            if (strpos($name, "_") === 0)
                continue;
            if (is_array($val))
                $val = join(',', $val);
            if ($val === "")
                continue;
            $arg .= $name . "=" . $val . "&";
        }
        $arg = substr($arg, 0, count($arg) - 2);

        return $arg;
    }
}