# BuddyPress: Mark Activity With Blocked Words as Spam

> Automatically marks activity updates and comments that contain words from your blocklist as spam, so they never appear in the stream.

- Type: PHP
- Runs: Run everywhere
- Category: [Users](https://wpide.com/library/category/users/)
- Tags: buddypress, spam, moderation
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/buddypress-activity-blocked-words/

## Code

```php
if ( ! function_exists( 'buddypress' ) ) {
    return;
}

// Words or phrases that mark an update as spam.
$wpide_bp_blocked_words = array( 'casino', 'free followers', 'crypto giveaway' );

add_action( 'bp_activity_before_save', function ( $activity ) use ( $wpide_bp_blocked_words ) {
    if ( empty( $activity->content ) || ! empty( $activity->is_spam ) || user_can( (int) $activity->user_id, 'bp_moderate' ) ) {
        return;
    }

    $text = wp_strip_all_tags( $activity->content );

    foreach ( $wpide_bp_blocked_words as $word ) {
        if ( preg_match( '/\b' . preg_quote( $word, '/' ) . '\b/iu', $text ) ) {
            $activity->is_spam = 1;
            return;
        }
    }
} );
```

## Notes

Words are matched case-insensitively as whole words. Spammed items can be reviewed under Activity in wp-admin.

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "BuddyPress: Mark Activity With Blocked Words as Spam" 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/