Problem with fopen() (proxy settings in ubuntu)?

Question

PHP

On Ubuntu Server with default LAMP, Wordpress is running. The server climbs into the Internet through a proxy.
Internet performance was checked for example by apt-get install .
in Wordpress in those places where Internet connection is expected: WP HTTP Error: Unable to open processing for fopen() <blah-blah>
Whether these are settings specifically for fopen(), or for php in general (for example, it does not know about proxies ).
Tell me where and what to check so that scripts (such as wordpress) can climb into the Internet. Thank you!

Answer 1

1. fix the code to use fsockopen/curl/…
2. make transparent proxying to iptables+squid

Answer 2

Well, do you have WordPress that does not know that you need to climb through the proxy, or do you have a transparent proxy?