WordPress MU

Hi,

I have written my own plugin which I want activated site-wide to all my users' blogs. I am using the admin_footer hook, because I want this plugin to fire each time an admin page displays.

Here's what I did:

As the admin user, I activated my plugin site wide. The plugin works for me as admin user.

Next, I self-registered "UserA" and a new blog was automatically created. However, the plugin is not firing for UserA in the admin menu.

I have been debugging the code and traced all the way into plugin.php

do {
    foreach ( (array) current($wp_filter[$tag]) as $the_ )
        if ( !is_null($the_['function']) )
            call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));

My function does not appear in $the_['function'] as UserA, but it does as admin.

Can anyone explain why this would be happening?

Here is how I tested and debugged. My plugin looks like this:

add_action("admin_footer", 'testAdminFooterHook', 5);

function testAdminFooterHook()
{
echo "<script language='javascript' >\n";
echo "alert('test admin_footer hook')";
echo "</script >\n";
}

Have I forgotten to do something? It should be this easy shouldn't it? I want to impose this plugin on all my site's users.

The strangest part is that if I log in as administrator, and view UserA's blog dashboard, then everything works. It's as if as soon as the admin touches the blog, the plugin is registered.

What happens if you place the plugin in the mu-plugins folder? (which is where we place code we want to run sitewide all the time).

Add the following to the header comments of the plugin and keep it in the plugins folder.

Site Wide Only: true