bp_ajax_get_suggestions()

function bp_ajax_get_suggestions() {
	if ( ! bp_is_user_active() || empty( $_GET['term'] ) || empty( $_GET['type'] ) ) {
		wp_send_json_error( 'missing_parameter' );
		exit;
	}

	$args = array(
		'term' => sanitize_text_field( $_GET['term'] ),
		'type' => sanitize_text_field( $_GET['type'] ),
	);

	if ( ! empty( $_GET['only_friends'] ) ) {
		$args['only_friends'] = absint( $_GET['only_friends'] );
	}

	// Support per-Group suggestions.
	if ( ! empty( $_GET['group-id'] ) ) {
		$args['group_id'] = absint( $_GET['group-id'] );
	}

	$results = bp_core_get_suggestions( $args );

	if ( is_wp_error( $results ) ) {
		wp_send_json_error( $results->get_error_message() );
		exit;
	}

	wp_send_json_success( $results );
}