# Show or Hide Blocks for Members and Guests

> Hides any block from visitors or members based on a CSS class you add in the block's Advanced panel: wpide-members-only, wpide-guests-only or wpide-role-{role}.

- Type: PHP
- Runs: Frontend only
- Category: [Memberships](https://wpide.com/library/category/memberships/)
- Tags: blocks, members, visibility
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/block-visibility-classes-members/

## Code

```php
add_filter( 'render_block', function ( $html, $block ) {
    $classes = isset( $block['attrs']['className'] ) ? preg_split( '/\s+/', (string) $block['attrs']['className'] ) : array();

    if ( ! $classes || false === strpos( $block['attrs']['className'], 'wpide-' ) ) {
        return $html;
    }

    $logged_in = is_user_logged_in();

    if ( in_array( 'wpide-members-only', $classes, true ) && ! $logged_in ) {
        return '';
    }

    if ( in_array( 'wpide-guests-only', $classes, true ) && $logged_in ) {
        return '';
    }

    $wanted = array();

    foreach ( $classes as $class ) {
        if ( 0 === strpos( $class, 'wpide-role-' ) ) {
            $wanted[] = substr( $class, 11 );
        }
    }

    if ( $wanted && ! array_intersect( $wanted, $logged_in ? (array) wp_get_current_user()->roles : array() ) ) {
        return '';
    }

    return $html;
}, 10, 2 );
```

## Notes

Hidden blocks are removed on the server, so their content never reaches the browser. Example class for editors only: wpide-role-editor.

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "Show or Hide Blocks for Members and Guests" in its snippet library and add it in one click; or create a new PHP snippet in WPIDE (or any code snippets plugin) and paste the code above. More snippets: https://wpide.com/library/