[PHP] curl 封装(get,post)

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一.统一封装

/**
 * CURL请求
 * @param $url 请求url地址
 * @param $method 请求方法 get post
 * @param null $postfields post数据数组
 * @param array $headers 请求header信息
 * @param bool|false $debug  调试开启 默认false
 * @return mixed
 */
    function httpRequest($url, $method, $postfields = null, $headers = array(), $debug = false)
    {
        $method = strtoupper($method);
        $ci     = curl_init();
        /* Curl settings */
        curl_setopt($ci, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
        curl_setopt($ci, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0");
        curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, 60); /* 在发起连接前等待的时间,如果设置为0,则无限等待 */
        curl_setopt($ci, CURLOPT_TIMEOUT, 30); /* 设置cURL允许执行的最长秒数 */
        curl_setopt($ci, CURLOPT_RETURNTRANSFER, true);
        switch ($method) {
            case "POST":
                curl_setopt($ci, CURLOPT_POST, true);
                if (!empty($postfields)) {
                    $tmpdatastr = is_array($postfields) ? http_build_query($postfields) : $postfields;
                    curl_setopt($ci, CURLOPT_POSTFIELDS, $tmpdatastr);
                }
                break;
            default:
                curl_setopt($ci, CURLOPT_CUSTOMREQUEST, $method); /* //设置请求方式 */
                break;
        }
        $ssl = preg_match('/^https:\/\//i', $url) ? true : false;
        curl_setopt($ci, CURLOPT_URL, $url);
        if ($ssl) {
            curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, false); // https请求 不验证证书和hosts
            curl_setopt($ci, CURLOPT_SSL_VERIFYHOST, false); // 不从证书中检查SSL加密算法是否存在
        }
        //curl_setopt($ci, CURLOPT_HEADER, true); /*启用时会将头文件的信息作为数据流输出*/
        curl_setopt($ci, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ci, CURLOPT_MAXREDIRS, 2); /*指定最多的HTTP重定向的数量,这个选项是和CURLOPT_FOLLOWLOCATION一起使用的*/
        curl_setopt($ci, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ci, CURLINFO_HEADER_OUT, true);
        /*curl_setopt($ci, CURLOPT_COOKIE, $Cookiestr); * *COOKIE带过去** */
        $response    = curl_exec($ci);
        $requestinfo = curl_getinfo($ci);
        $http_code   = curl_getinfo($ci, CURLINFO_HTTP_CODE);
        if ($debug) {
            echo "=====post data======\r\n";
            var_dump($postfields);
            echo "=====info===== \r\n";
            print_r($requestinfo);
            echo "=====response=====\r\n";
            print_r($response);
        }
        curl_close($ci);
        $response = mb_convert_encoding($response, 'UTF-8', 'UTF-8,GBK,GB2312,BIG5'); //使用该函数对结果进行转码  2018-09-07
        return $response;
        //return array($http_code, $response,$requestinfo);
    }

二 GET

//get请求
public function getUrl($url, $header = [])
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_HTTPGET, true);
    if ($header) {
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    }
    curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置超时时间:30s
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); //忽略ssl检测
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //1 或 TRUE 将curl_exec()获取的信息以字符串返回,而不是直接输出。-
    curl_setopt($ch, CURLINFO_HEADER_OUT, true); //TRUE 时追踪句柄的请求字符串,从 PHP 5.1.3 开始可用。这个很关键,就是允许你查看请求header
    $output = curl_exec($ch);
    if (!$output) {
//        echo "request $url fail:", (array)curl_error($ch); //记录日志
    }
    curl_close($ch);
//    echo "request $url success:" . json_encode(array($url, $header, $output), true); //记录日志
    return $output;
}

三 POST

json

//post json 请求
public function postJsonUrl($url, $data, $header = [])
{
    $data = json_encode($data);
    $ch = curl_init();
    if (!empty($data)) {
        curl_setopt($ch, CURLOPT_POST,true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    }
    $header[]='Content-Type: application/json; charset=utf-8';
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); //为true,则会跟踪爬取重定向页面,否则,不会跟踪重定向页面
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置超时时间:30s
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); //忽略ssl检测
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //1 或 TRUE 将curl_exec()获取的信息以字符串返回,而不是直接输出。-
    curl_setopt($ch, CURLINFO_HEADER_OUT, true); //TRUE 时追踪句柄的请求字符串,从 PHP 5.1.3 开始可用。这个很关键,就是允许你查看请求header
    curl_setopt($ch, CURLOPT_URL, $url);
    $output = curl_exec($ch);
    if (!$output) {
//        echo "request $url fail:", (array)curl_error($ch); //记录日志
    }
    curl_close($ch);
//    echo "request $url success:" . json_encode(array($url, $header, $output), true); //记录日志
    return $output;
}