@fokana, the route:rewrite hook can help you in catching the rewritten url's, to actually rewrite an URL of an entity (eg blog) look at the 'entity:url' hook http://learn.elgg.org/en/stable/guides/hooks-list.html#other

if you wish to rewrite menu item URL's look at the 'prepare' 'menu:<menu name>' hook.

If you're just writing your own plugin and wish to have your own url's look at http://learn.elgg.org/en/stable/guides/pagehandler.html

PS: It can be a very hard task to (for example) use /blog under /news, but it can be done

it's not my problem down there. there she is :

I am trying to rewrite www.example.com/groups  to www.example.com/camerproject 

Some of my code:

\\ start.php file

elgg_register_event_handler('init', 'system', 'camerproject_init');

function camerproject_init(){

 elgg_register_plugin_hook_handler('route:rewrite', 'groups', 'groups_rewrite_handler');

}

function groups_rewrite_handler($hook, $type, $value, $params) {

    

   if (!$value['segments']) {

    $value['identifier'] = 'camerproject';

    }

       return $value;

}

But it does not work

regards,

elgg_register_plugin_hook_handler('route:rewrite', 'groups', 'myplugin_rewrite_handler');

function myplugin_rewrite_handler($hook, $type, $value, $params) {
    $value['identifier'] = 'camerproject';
    return $value;
}

1. You should create

elgg_register_page_handler('camerproject', 'camerproject_page_handler');

2. Add

elgg_register_plugin_hook_handler('route:rewrite', 'groups', 'myplugin_rewrite_handler');

after

elgg_register_event_handler('init', 'system', 'myplugin_init');

before

function myplugin_init() {

3. Deactivate and activate again your myplugin