I need to perform a HTTP GET from PHP.
More specifically, from within /index.php I need to get the content of /trac/ and /svn/, find the \"ul\" element and then ren
Have a look at file_get_contents - it can be used to open urls under some conditions as can some of the other filesystem functions:
A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen() for more details on how to specify the filename and List of Supported Protocols/Wrappers for a list of supported URL protocols.