bp_activity_check_exists_by_content( string $content )

function bp_activity_check_exists_by_content( $content ) {

	/**
	 * Filters the results of the check for whether an activity item exists by specified content.
	 *
	 * @since BuddyPress 1.1.0
	 *
	 * @param BP_Activity_Activity $value ID of the activity if found, else null.
	 */
	return apply_filters( 'bp_activity_check_exists_by_content', BP_Activity_Activity::check_exists_by_content( $content ) );
}