title: Apache curl via HTTP proxy
body: <p>I am trying to get PHP to execute a curl connection to another server. To connect to the server, we need to go via a proxy. 
  Within bash, we have set the env-variable http_proxy and this works correctly while using the php script from the command-line. However, when attempting to execute curl, or wget from apache, it fails with no errors.
  The server is configured with SELinux based on Centos defaults. This has been unchanged as I am unsure about SELinux configuration.
  Has anyone else had a similar issue?</p>