PHP 5.6 curl TLS 1.2更新

Question

要在Curl请求中更改代码后要使用PHP 5.6更新TLS版本1.2

function callNewAPI($apiURL, $requestParamList) {
    $jsonResponse = "";
    $responseParamList = array();
    $JsonData =json_encode($requestParamList);
    $postData = 'JsonData='.urlencode($JsonData);
    $ch = curl_init($apiURL);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");                                                                     
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);                                                                  
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
    curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
    **curl_setopt ($ch, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1_2);**
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(                                                                         
    'Content-Type: application/json', 
    'Content-Length: ' . strlen($postData))                                                                       
    );  
    $jsonResponse = curl_exec($ch);   
    $responseParamList = json_decode($jsonResponse,true);
    return $responseParamList;
}

响应未成功。是否需要配置 OpenSSL / 1.0.1p PHP 5.6