PC上的本地apache服务器 - PHP无法连接到其他远程服务器

Question

I am using Ubuntu 14.04 LTS in a VM (referring to as PC A).
I installed a local apache server on my PC A with php5 for developing. Now I want to access the remote server from my php-Script running on PC A to one of my production servers S. In fact I am calling some Web-Api-URL on Server S.
Server S is reachable from the internet and I can also connect via SSH from PC A to Server S. The installed application on Server S is also reachable.

The PHP script etc is correct and works. I could debug this to the point where it should connect to the remote server. It doesn't.

Do I need to add some config to php/apache to allow connections to the remote server?

Answer 1

I was just missing the CURL libs. After installing php5-curl it works all fine. And I did not get any error messages, because display_erros was not activated.