curl在命令行中运行正常，但在php中运行不正常

Question

I use curl to retrieve the contents of a url from within PHP. It works fine for most url's, but for some, it only returns an empty string ("curl"ing such url's from command line works just fine). Here's how I run curl:

$curl_session = curl_init($site->url);
curl_setopt($curl_session, CURLOPT_HEADER, 0);
curl_setopt($curl_session, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl_session, CURLOPT_CONNECTTIMEOUT, TIMEOUT);
$output = curl_exec($curl_session);
curl_close($curl_session);

I also checked and curl doesn't seem to give any errors.

Answer 1

您可以使用

echo shell_exec("www.example.com");