跨域请求api,使用自封装的类

自封装curl类

  /**
     * @param $url 请求网址
     * @param bool $params 请求参数
     * @param int $ispost 请求方式
     * @param int $https https协议
     * @return bool|mixed
     */
    public static  function get($url, $params = false, $ispost = 0, $https = 0)
    {
        $httpInfo = array();
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36');
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        if ($https) {
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // 对认证证书来源的检查
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); // 从证书中检查SSL加密算法是否存在
        }
        if ($ispost) {
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
            curl_setopt($ch, CURLOPT_URL, $url);
        } else {
            if ($params) {
                if (is_array($params)) {
                    $params = http_build_query($params);
                }
                curl_setopt($ch, CURLOPT_URL, $url . '?' . $params);
            } else {
                curl_setopt($ch, CURLOPT_URL, $url);
            }
        }
        $response = curl_exec($ch);
        if ($response === FALSE) {
            //echo "cURL Error: " . curl_error($ch);
            return false;
        }
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $httpInfo = array_merge($httpInfo, curl_getinfo($ch));
        curl_close($ch);
        return $response;
    }

原文链接:https://learnku.com/articles/2768/easy-to-use-curl-class

调用

   $result = curl::get("http://172.16.112.3/api.php",'', true);
    $index=json_decode($result);
    return $index;

原生ajax实现跨域

 $.ajax({
                async: true,
                url: "http://172.16.112.3/api.php",
                type: "GET",
                dataType: "jsonp", // 返回的数据类型，设置为JSONP方式
                jsonp: 'callback', //指定一个查询参数名称来覆盖默认的 jsonp 回调参数名 callback
                jsonpCallback: 'handleResponse', //设置回调函数名
                success: function (response, status, xhr) {
                    console.log('状态为：' + status + ',状态是：' + xhr.statusText);
                    console.log(response);
                }
            });

原生js实现跨域

 window.onload = function () {
        function jsonp(obj) {
            //定义一个处理Jsonp返回数据的回调函数
            window["callback"] = function (object) {
                obj.success(object);
            }
            var script = document.createElement("script");
            //组合请求URL
            script.src = obj.url + "?callback=callback";
            for (key in obj.data) {
                script.src += "&" + key + "=" + obj.data[key];
            }
            //将创建的新节点添加到BOM树上
            document.getElementsByTagName("body")[0].appendChild(script);
        }
        jsonp({
            url: "http://172.16.112.3/api.php",
            success: function (obj) {
                console.log(obj);
            }
        });
    }

使用Guzzle

参考文档: https://guzzle-cn.readthedocs.io/zh_CN/latest/overview.html#installation

日积月累,谢谢大佬