Blog

The following code can be used to remove the text from the dashboard:

function cwhf_remove_wp_footer_admin()
{
    add_filter( 'admin_footer_text',    '__return_false', 11 );
}
add_action( 'admin_init', 'cwhf_remove_wp_footer_admin' );

Instead of an empty text, you can also set your own text here.

Remove WordPress version from the bottom of the dashboard

The version can be removed in this way:

function cwhf_remove_version_wp_footer_admin()
{
    add_filter( 'update_footer',        '__return_false', 11 );
}
add_action( 'admin_init', 'cwhf_remove_version_wp_footer_admin' );

To hide both, you should ideally combine both filter calls:

function cwhf_remove_wp_footer_admin()
{
    add_filter( 'admin_footer_text',    '__return_false', 11 );
    add_filter( 'update_footer',        '__return_false', 11 );
}
add_action( 'admin_init', 'cwhf_remove_wp_footer_admin' );

By default, WordPress displays its own logo in the top left corner of the toolbar (so-called adminbar). If you want to remove it, you can do so either with the plugin Remove WP Branding or programmatically in this way:

function cwhf_remove_logo_wp_toolbar() {
        global $wp_admin_bar;
        $wp_admin_bar->remove_menu( 'wp-logo' );
}
add_action( 'wp_before_admin_bar_render', 'cwhf_remove_logo_wp_toolbar', 0 );

Change WordPress logo in toolbar

If you want to display a different logo instead, use the following code:

function cwhf_replace_logo_in_admin_bar() {
echo '
<style type="text/css">
#wpadminbar #wp-admin-bar-wp-logo > .ab-item .ab-icon:before {
background-image: url("https://my-domain.com/wp-content/uploads/my-favicon.png") !important;
background-position: 0 0;
color:rgba(0, 0, 0, 0);
}
#wpadminbar #wp-admin-bar-wp-logo.hover > .ab-item .ab-icon {
background-position: 0 0;
}
</style>
';
}
add_action('wp_before_admin_bar_render', 'cwhf_replace_logo_in_admin_bar');