Php – com_create_guid() is not defined : returns fatal error

Presumably you have separate php.ini files set up for apache and the command line (cli).

If so, you need to add the following to your cli php.ini file:

extension=memcache.so

On Ubuntu it's in /etc/php5/cli/php.ini

If it's working then memcache should appear in the list of modules if you run php -m on the command line.

Alternatively, you can create a file /etc/php5/cond.d/memcache.ini with the same contents.

Group the include statements:

if ( (include_once dirname(__FILE__).'/file.php')
      ||
     (include_once dirname(__FILE__).'/local/file.php')
   )

See example #4 in the manual page:

<?php
// won't work, evaluated as include(('vars.php') == 'OK'), i.e. include('')
if (include('vars.php') == 'OK') {
    echo 'OK';
}

// works
if ((include 'vars.php') == 'OK') {
    echo 'OK';
}
?>