PHP: 解析pathinfo(从url解析控制器和方法) 和 cUrl的简单应用

1. 解析pathinfo(从url解析控制器和方法)

url: http://php.io/PHP/0305/0305test/index.php/weather/get/city/%E5%8D%97%E9%98%B3

效果图

代码

<?php
namespace test0305\controllers;
class InitializeControllers
{
    public function initialize()
    {
        $pathinfoArr = array_filter(explode('/', $_SERVER['PATH_INFO']));
        $controller = __NAMESPACE__ . '\\' . ucfirst(array_shift($pathinfoArr)) . 'Controllers';
        $action = array_shift($pathinfoArr);
        $params = ['key' => '你自己的聚合接口的key'];
        for ($i = 0; $i < count($pathinfoArr); $i += 2) {
            if (isset($pathinfoArr[$i + 1])) {
                $params[$pathinfoArr[$i]] = $pathinfoArr[$i + 1];
            }
        }
        echo '<pre>' . print_r($params, true) . '</pre>';
        echo $controller . ':' . $action . '<hr>';
        // $data = call_user_func_array([new $controller, $action], $params);
        // echo $data;
    }
}

2. cUrl的简单应用

效果图

代码

<?php
namespace test0305\controllers;
class WeatherControllers
{
    /**
     * 接口请求: 获取天气信息
     *
     * @params $params: 数组参数['city(城市)','key(聚合接口的key)']
     */
    public function getWeather(array $params)
    {
        $query = http_build_query($params);
        // 接口请求初始化
        $ch = curl_init();
        // 设置请求选项
        curl_setopt_array($ch, [
            // url
            CURLOPT_URL => 'http://apis.juhe.cn/simpleWeather/query?' . $query,
            // 请求方式为get
            CURLOPT_HTTPGET => true,
            // 是否设置请求头
            CURLOPT_HEADER => false,
            // 设置是否返回并输出
            CURLOPT_RETURNTRANSFER => true
        ]);
        // 结束请求
        $api = curl_exec($ch);
        if (json_decode($api, true)['error_code'] !== 0) {
            echo json_decode($api, true)['reason'];
        } else {
            if (file_exists(dirname(__DIR__) . '../../html/' . lcfirst(ltrim(__FUNCTION__, 'get')) . '.php')) {
                include dirname(__DIR__) . '../../html/' . lcfirst(ltrim(__FUNCTION__, 'get')) . '.php';
            } else {
                exit('文件写入失败');
            }
        }
    }
}