【PHP開發】用curl向https發請求時的35號錯誤

放了個假發現以前寫的程序的模擬登陸不管用了，中間輸出，發現curl向https發請求時沒有返回數據，輸出錯誤信息，得到：

curl_errno($ch) -----> 35
curl_error($ch) -----> error:14077458:SSL routines:SSL23_GET_SERVER_HELLO:reason(1112)

查了很多資料，終於發現要強行指定SSL的版本，即加上下面的話就可以了：

curl_setopt($ch, CURLOPT_SSLVERSION, 3);

整個函數也貼下來供參考：

function sendPostHttps($url, $postData, $header=0, $referer=""){
    $ch = curl_init () ;

    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_HEADER, $header);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_URL, $url) ;
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
    curl_setopt($ch, CURLOPT_REFERER, $referer);
    curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1);
    curl_setopt($ch, CURLOPT_SSLVERSION, 3);
    $result = curl_exec($ch);
    curl_close($ch);

    return $result;
}

參考帖子：http://stackoverflow.com/questions/20988782/curl-unknown-ssl-protocol-error-in-connection-error-in-server-but-works-on-lo