platform-trace/app/Helper/helper.php

<?php
/**
 * 添加自定义辅助函数
 */

if ( ! function_exists('config_path'))
{
    /**
     * Get the configuration path.
     *
     * @param string $path
     * @return string
     */
    function config_path($path = '')
    {
        return app()->basePath() . '/config' . ($path ? '/' . $path : $path);
    }
}

if (! function_exists('public_path')) {
    /**
     * Get the path to the public folder.
     *
     * @param  string  $path
     * @return string
     */
    function public_path($path = '')
    {
        return app()->basePath() . '/public' . ($path ? '/' . $path : $path);
    }
}

function subtext($text, $length)
{
    if(mb_strlen($text, 'utf8') > $length) {
        return mb_substr($text, 0, $length, 'utf8').'...';
    } else {
        return $text;
    }
}


function http($url, $param, $isCheck = true, $method = 'post')
{
    try {
        $client = new \GuzzleHttp\Client();
        $response = $client->request($method, $url, $param);
        $result = json_decode($response->getBody()->getContents(), true);
        \Illuminate\Support\Facades\Log::debug('url:'.$url.'param:'.json_encode($param).'response:'.json_encode($result));
        if ($isCheck == true) {
            if ($result['code'] == 0) {
                return $result['data'];
            } else {
                return [];
            }
        } else {
            return $result;
        }

    } catch (\Exception $exception) {
        \Illuminate\Support\Facades\Log::debug('http-exception:'.$exception->getMessage());
        return [];
    }
}


function generateSign(array $params, $secret_key)
{
    unset($params['sign']);
    // 将删除参数组中所有等值为FALSE的参数（包括：NULL, 空字符串，0， false）
    $params = array_filter($params);

    // 按照键名对参数数组进行升序排序
    ksort($params);

    // 给参数数组追加密钥，键名为 key， 值为签名配置中配置的 secret_key 的值
    $params['chxq_key'] = $secret_key;
    \Illuminate\Support\Facades\Log::debug($params);
    // 生成 URL-encode 之后的请求字符串
    $str = http_build_query($params);
    $str = urldecode($str);
    \Illuminate\Support\Facades\Log::debug($str);
    //$str = "address=计算机啊手机壳阿看见手机卡&address_type=1&area_id=2&area_name=西安市&city_id=2&city_name=西安市&contact_mobile
    //=18458881890&contact_name=刘德华&province_id=1&province_name=陕西省&uid=0&zipcode=1000000";
    // 将请求字符串使用MD5加密后，再转换成大写，并返回
    return strtoupper(MD5($str));
}