无法执行curl请求PHP？(Unable to execute curl request PHP?)

 我正在处理curl，并尝试从url获取结果，当我通过命令提示符点击url然后它可以工作，但是当我尝试通过curl命中它然后它没有返回任何响应。 
 
 这是我尝试过的URL和curl请求： 
 
$request =  'https://api.twilio.com/2010-04-01/Accounts/<AccountSid>/Calls/<SID>/Recordings.json -u <AccountSid>:<AccountToken>';
 
 当我尝试通过终端点击上面的URL然后它工作： 
 
$ curl -G https://api.twilio.com/2010-04-01/Accounts/<AccountSid>/Calls/<SID>/Recordings.json -u <AccountSid>:<AccountToken>
 
 它以json格式返回响应，但我想通过curl访问它，所以我尝试了以下方式： 
 
$session = curl_init($request);
curl_setopt($session, CURLOPT_HEADER, false);
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($session);
curl_close($session);

echo "<pre>";
print_r($response);
echo "</pre>";
 
 但它什么也没有回报。 

I am working on curl, and trying to get results from a url, when I hit the url through command prompt then it works, but when I try to hit it through curl then it returns nothing in response.
 
Here is the URL and the curl request I tried:
 
$request =  'https://api.twilio.com/2010-04-01/Accounts/<AccountSid>/Calls/<SID>/Recordings.json -u <AccountSid>:<AccountToken>';
 
When I try to hit the above URL via terminal then it works:
 
$ curl -G https://api.twilio.com/2010-04-01/Accounts/<AccountSid>/Calls/<SID>/Recordings.json -u <AccountSid>:<AccountToken>
 
it returns response in json format, but I want to access it throught curl, so I tried the following way:
 
$session = curl_init($request);
curl_setopt($session, CURLOPT_HEADER, false);
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($session);
curl_close($session);

echo "<pre>";
print_r($response);
echo "</pre>";
 
but it returns nothing.

原文：https://stackoverflow.com/questions/44345677