常用的curl发包函数

function curl($url, $postFields = null)
	{
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_FAILONERROR, false);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

		if (is_array($postFields) && 0 < count($postFields))
		{
			$postBodyString = "";
			foreach ($postFields as $k => $v)
			{
				$postBodyString .= "$k=" . urlencode($v) . "&"; 
			}
			unset($k, $v);
			curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);  
 			curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0); 
			curl_setopt($ch, CURLOPT_POST, true);
			curl_setopt($ch, CURLOPT_POSTFIELDS, substr($postBodyString,0,-1));
		}
		$reponse = curl_exec($ch);
		if (curl_errno($ch)){
			//throw new Exception(curl_error($ch),0);
			ShowMsg("授权出错,请联系管理员","/");
			exit();
		}
		else{
			$httpStatusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
			if (200 !== $httpStatusCode){
				//throw new Exception($reponse,$httpStatusCode);
				ShowMsg("授权出错,请联系管理员","/");
				exit();
			}
		}
		curl_close($ch);
		return $reponse;
	}