function bp_core_admin_settings_save() {
	global $wp_settings_fields;

	if ( isset( $_GET['page'] ) && 'bp-settings' == $_GET['page'] && !empty( $_POST['submit'] ) ) {
		check_admin_referer( 'buddypress-options' );

		// Because many settings are saved with checkboxes, and thus will have no values
		// in the $_POST array when unchecked, we loop through the registered settings.
		if ( isset( $wp_settings_fields['buddypress'] ) ) {
			foreach( (array) $wp_settings_fields['buddypress'] as $section => $settings ) {
				foreach( $settings as $setting_name => $setting ) {
					$value = isset( $_POST[$setting_name] ) ? $_POST[$setting_name] : '';

					bp_update_option( $setting_name, $value );
				}
			}
		}

		// Some legacy options are not registered with the Settings API, or are reversed in the UI.
		$legacy_options = array(
			'bp-disable-account-deletion',
			'bp-disable-avatar-uploads',
			'bp-disable-cover-image-uploads',
			'bp-disable-group-avatar-uploads',
			'bp-disable-group-cover-image-uploads',
			'bp_disable_blogforum_comments',
			'bp-disable-profile-sync',
			'bp_restrict_group_creation',
			'hide-loggedout-adminbar',
		);

		foreach( $legacy_options as $legacy_option ) {
			// Note: Each of these options is represented by its opposite in the UI
			// Ie, the Profile Syncing option reads "Enable Sync", so when it's checked,
			// the corresponding option should be unset.
			$value = isset( $_POST[$legacy_option] ) ? '' : 1;
			bp_update_option( $legacy_option, $value );
		}

		bp_core_redirect( add_query_arg( array( 'page' => 'bp-settings', 'updated' => 'true' ), bp_get_admin_url( 'admin.php' ) ) );
	}
}