PHP curl get post

public function httpGet($url=""){    $curl = curl_init();    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);    curl_setopt($curl, CURLOPT_TIMEOUT, 500);    // 為保證第三方伺服器與伺服器之間資料轉送的安全性，所有介面採用https方式調用，必須使用下面2行代碼開啟ssl安全校正。    // 如果在部署過程中代碼在此處驗證失敗，請到 http://curl.haxx.se/ca/cacert.pem 下載新的認證判別檔案。    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);    curl_setopt($curl, CURLOPT_URL, $url);    $res = curl_exec($curl);    curl_close($curl);    return $res;}public function httpPost($url="" ,$requestData=array()){$curl = curl_init();curl_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);curl_setopt($curl, CURLOPT_POSTFIELDS, $requestData);$res = curl_exec($curl);curl_close($curl);return $res;}

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