php curl 可以连接到任何 TCP 端口，而不仅仅是 HTTP/HTTPS？
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Can curl make a connection to any TCP ports, not just HTTP/HTTPS?
提问by user2203703
Can curlmake a connection to any TCP ports not just HTTP/HTTPS
可以curl连接到任何 TCP 端口，而不仅仅是 HTTP/HTTPS
I need to check for an open port, for example: 11740.
我需要检查一个开放的端口，例如：11740.
Is this possible?
这可能吗？
采纳答案by brandonscript
Since you're using PHP, you will probably need to use the CURLOPT_PORToption, like so:
由于您使用的是 PHP，您可能需要使用该CURLOPT_PORT选项，如下所示：
curl_setopt($ch, CURLOPT_PORT, 11740);
curl_setopt($ch, CURLOPT_PORT, 11740);
Bear in mind, you may face problems with SELinux:
请记住，您可能会遇到 SELinux 的问题：
回答by kenorb
Yes, it's possible, the syntax is curl [protocol://]<host>[:port], for example:
是的，有可能，语法是curl [protocol://]<host>[:port]，例如：
curl example.com:1234
If you're using Bash, you can also use pseudo-device /devfilesto open a TCP connection, e.g.:
如果您使用 Bash，您还可以使用伪设备/dev文件来打开 TCP 连接，例如：
exec 5<>/dev/tcp/127.0.0.1/1234
echo "send some stuff" >&5
cat <&5 # Receive some stuff.
See also: More on Using Bash's Built-in /dev/tcp File (TCP/IP).
回答by user2926055
Of course:
当然：
curl http://example.com:11740
curl https://example.com:11740
Port 80 and 443 are just default port numbers.
端口 80 和 443 只是默认端口号。
