curl post请求封装

/* 
POST /servlet/ICBCCMPAPIReqServlet?userID=jyi.y.1001&PackageID=201807311347539185&SendTime=20180731134755 HTTP/1.1
Host: 127.0.0.1:7070
Accept:*
Content-Type:application/x-www-form-urlencoded
Content-Length: 4211
Expect: 100-continue 

 */

/* 
HTTP/1.1 100 Continue
 */
 
/**
 * * curlPost请求
 * @param string $url 请求的url
 * @param array $dataArr 发送的数据
 * @param string $dataType 发送数据类型
 * @param array $headerArr 请求头
 * @param int $timeout 超时时间
 * @author：songjm
 * @date:2018.7.31
 * @return array
 */
function curlPost($url, $dataArr, $dataType = 'arr', $headerArr = array(), $timeout = 3)
{
    $headerArr[] = 'Expect:'
    //防止libcurl发送大于1024字节数据时启用HTTP/1.1的Expect:100-continue特性
    $ch = curl_init(); //初始化curl
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); //返回字符串,而不直接输出
    curl_setopt($ch, CURLOPT_URL, $url); //设置请求的url
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headerArr);
    curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); //不验证对等证书
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); //不检查服务器SSL证书

    $dataType = strtolower($dataType);
    if ($dataType == 'json')
    {
        $data = json_encode($dataArr);
    }
    elseif ($dataType == 'ser')
    {
        $data = serialize($dataArr);
    }
    elseif ($dataType == 'raw')
    {
        $data = $dataArr;
    }
    else
    {
        $data = http_build_query($dataArr);
    }
    curl_setopt($ch, CURLOPT_POST, true); //设置为POST请求
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data); //设置POST的请求数据(字符串或数组)

    $response = curl_exec($ch);
    if ($error = curl_error($ch))
    {
        $bkArr =  array(
            'code' => 0,
            'msg' => $error,
        );
    }
    else
    {
        $bkArr =  array(
            'code' => 1,
            'msg' => 'ok',
            'resp' => $response,
        );
    }

    curl_close($ch); // 关闭 cURL 释放资源

    return $bkArr;
}