Php Curl错误：无法解析主机：www.localhost

我收到一个错误，无法解析

主机：www.localhost

。我不知道它为什么会来

$url ="http://www.localhost:81/dbWIP/selectApi.php?name=".$name;
$client = curl_init();
echo $client;
curl_setopt($client, CURLOPT_URL,$url);
curl_setopt($client,CURLOPT_RETURNTRANSFER,true);
curl_setopt($client, CURLOPT_HEADER, false);
$response = curl_exec($client);
curl_close($client);
echo $response
$result = json_decode($response);

---

删除url中的

www.

像这样

$url ="http://localhost:81/dbWIP/selectApi.php?name=".$name;
$client = curl_init();
echo $client;
curl_setopt($client, CURLOPT_URL,$url);
curl_setopt($client,CURLOPT_RETURNTRANSFER,true);
curl_setopt($client, CURLOPT_HEADER, false);
$response = curl_exec($client);
curl_close($client);
echo $response
$result = json_decode($response);

并验证您的端口号

81

netstat -a -b

---

这将告诉您什么程序绑定到端口81

它可能只是

http://localhost

。您尝试过不使用www吗？