php用curl封装一个http请求类(链式调用)

摘要：原理很简单就是使用库模拟工具类设置设置超时不能小于等于只需要设置一个秒的数量就可以设置代理设置代理端口设置来源页面设置用户代理模拟用户使用的浏览器响应中是否显示，表示显示设置请求的参数或设置证书路径模拟请求设置参数

原理很简单,就是使用curl库

ch = curl_init();
    }

    /**
     * 设置http header
     * @param $header
     * @return $this
     */
    public function setHeader($header) {
        if(is_array($header)){
            curl_setopt($this->ch, CURLOPT_HTTPHEADER  , $header);
        }
        return $this;
    }

    /**
     * 设置http 超时
     * @param int $time
     * @return $this
     */
    public function setTimeout($time) {
        // 不能小于等于0
        if($time <= 0) {
            $time = 5;
        }
        //只需要设置一个秒的数量就可以
        curl_setopt($this->ch, CURLOPT_TIMEOUT, $time);
        return $this;
    }


    /**
     * 设置http 代理
     * @param string $proxy
     * @return $this
     */
    public function setProxy($proxy) {
        if($proxy){
            curl_setopt ($this->ch, CURLOPT_PROXY, $proxy);
        }
        return $this;
    }

    /**
     * 设置http 代理端口
     * @param int $port
     * @return $this
     */
    public function setProxyPort($port) {
        if(is_int($port)) {
            curl_setopt($this->ch, CURLOPT_PROXYPORT, $port);
        }
        return $this;
    }

    /**
     * 设置来源页面
     * @param string $referer
     * @return $this
     */
    public function setReferer($referer = ""){
        if (!empty($referer))
            curl_setopt($this->ch, CURLOPT_REFERER , $referer);
        return $this;
    }

    /**
     * 设置用户代理
     * @param string $agent
     * @return $this
     */
    public function setUserAgent($agent = "") {
        if ($agent) {
            // 模拟用户使用的浏览器
            curl_setopt($this->ch, CURLOPT_USERAGENT, $agent);
        }
        return $this;
    }

    /**
     * http响应中是否显示header，1表示显示
     * @param $show
     * @return $this
     */
    public function showResponseHeader($show) {
        curl_setopt($this->ch, CURLOPT_HEADER, $show);
        return $this;
    }


    /**
     * 设置http请求的参数,get或post
     * @param array $params
     * @return $this
     */
    public function setParams($params) {
        $this->httpParams = $params;
        return $this;
    }

    /**
     * 设置证书路径
     * @param $file
     */
    public function setCainfo($file) {
        curl_setopt($this->ch, CURLOPT_CAINFO, $file);
    }


    /**
     * 模拟GET请求
     * @param string $url
     * @param string $dataType
     * @return bool|mixed
     */
    public function get($url, $dataType = "text") {
        if(stripos($url, "https://") !== FALSE) {
            curl_setopt($this->ch, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($this->ch, CURLOPT_SSL_VERIFYHOST, FALSE);
            curl_setopt($this->ch, CURLOPT_SSLVERSION, 1);
        }
        // 设置get参数
        if(!empty($this->httpParams) && is_array($this->httpParams)) {
            if(strpos($url, "?") !== false) {
                $url .= http_build_query($this->httpParams);
            } else {
                $url .= "?" . http_build_query($this->httpParams);
            }
        }
        // end 设置get参数
        curl_setopt($this->ch, CURLOPT_URL, $url);
        curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, 1 );
        $content = curl_exec($this->ch);
        $status = curl_getinfo($this->ch);
        curl_close($this->ch);
        if (isset($status["http_code"]) && $status["http_code"] == 200) {
            if ($dataType == "json") {
                $content = json_decode($content, true);
            }
            return $content;
        } else {
            return FALSE;
        }
    }




    /**
     * 模拟POST请求
     *
     * @param string $url
     * @param array $fields
     * @param string $dataType
     * @return mixed
     * 
     * HttpCurl::post("http://api.example.com/?a=123", array("abc"=>"123", "efg"=>"567"), "json");
     * HttpCurl::post("http://api.example.com/", "这是post原始内容", "json");
     * 文件post上传
     * HttpCurl::post("http://api.example.com/", array("abc"=>"123", "file1"=>"@/data/1.jpg"), "json");
     */
    public function post($url, $dataType="text") {
        if(stripos($url, "https://") !== FALSE) {
            curl_setopt($this->ch, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($this->ch, CURLOPT_SSL_VERIFYHOST, FALSE);
            curl_setopt($this->ch, CURLOPT_SSLVERSION, 1);
        }
        curl_setopt($this->ch, CURLOPT_URL, $url);
        // 设置post body
        if(!empty($this->httpParams)) {
            if(is_array($this->httpParams)) {
                curl_setopt($this->ch, CURLOPT_POSTFIELDS, http_build_query($this->httpParams));
            } else if(is_string($this->httpParams)) {
                curl_setopt($this->ch, CURLOPT_POSTFIELDS, $this->httpParams);
            }
        }
        // end 设置post body
        curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, 1 );
        curl_setopt($this->ch, CURLOPT_POST, true);
        $content = curl_exec($this->ch);
        $status = curl_getinfo($this->ch);
        curl_close($this->ch);
        if (isset($status["http_code"]) && $status["http_code"] == 200) {
            if ($dataType == "json") {
                $content = json_decode($content, true);
            }
            return $content;
        } else {
            return FALSE;
        }
    }
}

echo (new HttpCurl())->setParams(["name" => "dfh", "age" => 12])->get("http://www.test.com");