PHP实现curl post和get

CURL这里就不说明了。以下是简单案例

一、POST

//初始化
    $curl = curl_init();
    //设置抓取的url
    curl_setopt($curl, CURLOPT_URL, 'http://www.baidu.com');
    //设置头文件的信息作为数据流输出
    curl_setopt($curl, CURLOPT_HEADER, 1);
    //设置获取的信息以文件流的形式返回，而不是直接输出。
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    //设置post方式提交
    curl_setopt($curl, CURLOPT_POST, 1);
    //设置post数据
    $post_data = array(
        "username" => "coder",
        "password" => "12345"
        );
    curl_setopt($curl, CURLOPT_POSTFIELDS, $post_data);
    //执行命令
    $data = curl_exec($curl);
    //关闭URL请求
    curl_close($curl);
    //显示获得的数据
    print_r($data);

POST

 private function _set_headers($user_agent , $client_ip )
    {
        $this->headers = [
            'Content-Type: application/json;charset=UTF-8',
            'Authorization: '. self::APP_KEY.':'.$this->sign,
            'Date: ' .$this->gmt_date,
            'Content-Length: ' .$this->content_len,
            'X-FORWARDED-FOR:'. $client_ip,
            'CLIENT-IP:'. $client_ip,
            'User-Agent:'.$user_agent
        ];
    }

    private function http_post_json($url, $jsonStr)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonStr);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
        //curl_setopt($ch,CURLOPT_PROXY,'118.0.0.1:8888');
        $response = curl_exec($ch);

        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        return ['code' => $httpCode, 'msg' => $response];
    }

二、GET

//初始化
    $curl = curl_init();
    //设置抓取的url
    curl_setopt($curl, CURLOPT_URL, 'http://www.baidu.com');
    //设置头文件的信息作为数据流输出
    curl_setopt($curl, CURLOPT_HEADER, 1);
    //设置获取的信息以文件流的形式返回，而不是直接输出。
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    //执行命令
    $data = curl_exec($curl);
    //关闭URL请求
    curl_close($curl);
    //显示获得的数据
    print_r($data);

GET

 //get获取合力token
    private function http_get_token()
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, self::GET_ACCESS_TOKEN_URL);
        curl_setopt($ch, CURLOPT_HEADER, 1);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $data = curl_exec($ch);
        var_dump($data);die;
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        return ['code' => $httpCode, 'msg' => CJSON::decode($data, true)];
    }

/**
     * 发起HTTP GET请求
     * 
     * @param string $url 请求URL
     * @param string $host 请求主机HOST
     * @param array $params 请求参数
     */
    public function http_get($url, $host = '', $params = array(), $timeout=3, $ms = false){
        if(is_array($params)){
            $getString= '';
            $getParams = array();
            foreach ($params as $key=>$val) {
                $getParams[] = $key.'='.($val);
                $getString = implode('&', $getParams);
            }
            //$getString = http_build_query($params);
        }else{
            $getString = $params;   
        }
        $url .= "?" . $getString;
        if (function_exists('curl_init')) {
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            if(!empty($host)){
                curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: ' . $host));
            }
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_USERAGENT, 'PHP5 Client ver: ' . phpversion());
            if(true === $ms){
                curl_setopt($ch, CURLOPT_TIMEOUT_MS, $timeout);
                curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, $timeout);
            }else{
                curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
                curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
            }
            $result = curl_exec($ch);
            curl_close($ch);
        } else {
            // 发起请求
            $handle = fopen ( $url, 'r' );
            $result = "";
            if ($handle) {
                while ( ! feof ( $handle ) ) {
                    $result .= fread ( $handle, 4096 );
                }
                fclose ( $handle );
            }
        }
        return $result;
    }

/**
     * post请求
     * @param $url string 
     * @param $host string
     */
    private function http_post($url, $host = '', $params = array(), $timeout=5, $ms = false){
        if(is_array($params)){
            $postString = http_build_query($params);
        }else{
            $postString = $params;  
        }

        if (function_exists('curl_init')) {
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            if(!empty($host)){
                curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: ' . $host));
            }
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $postString);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_USERAGENT, 'YOUKU.COM PREMIUM API PHP5 Client ver: ' . phpversion());
            if(true === $ms){
                curl_setopt($ch, CURLOPT_TIMEOUT_MS, $timeout);
                curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, $timeout);
            }else{
                curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
                curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
            }
            $result = curl_exec($ch);
            curl_close($ch);
        } else {
            $context = array(
                'http' => array(
                    'method' => 'POST',
                    'header' => 'Content-type: application/x-www-form-urlencoded'    . "\r\n".
                    'Host: '.$host . "\r\n".
                    'User-Agent: PHP5 Client ver: ' . phpversion() . "\r\n".
                    'Content-length: ' . strlen($postString),
                    'content' => $postString
                )
            );
            $contextId = stream_context_create($context);
            $handle = fopen($url, 'r', false, $contextId);
            $result = '';
            if ($handle) {
                while (!feof($handle)) {
                    $result .= fgets($handle, 4096);
                }
                fclose($handle);
            }
        }

        return $result; 
    }

   //拨号请求
    function doCurlGetRequest($url, $data = [], $header = [], $timeout = 5){
        if($url == "" || $timeout <= 0){
            return false;
        }
        $url = $url.'?'.http_build_query($data);
        $curl = curl_init((string)$url);
        curl_setopt($curl, CURLOPT_HEADER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 信任任何证书
        curl_setopt($curl, CURLOPT_RETURNTRANSFER,true);
        curl_setopt($curl, CURLOPT_TIMEOUT, (int)$timeout);
        curl_setopt($curl, CURLOPT_HTTPHEADER, $header); //添加自定义的http header
        return curl_exec($curl);
    }