Noptin_Ajax::save_options()

	public function save_options() {

		if ( ! current_user_can( get_noptin_capability() ) ) {
			wp_die( -1, 403 );
		}

		// Check nonce.
		check_ajax_referer( 'noptin_admin_nonce' );

		/**
		 * Runs before saving a settings
		 */
		do_action( 'noptin_before_save_options' );

		// Prepare settings.
		$_settings = stripslashes_deep( $_POST['state'] );
		unset( $_settings['noptin_admin_nonce'] );
		unset( $_settings['saved'] );
		unset( $_settings['error'] );
		unset( $_settings['currentTab'] );

		$settings = array();
		foreach ( $_settings as $key => $val ) {

			if ( 'false' === $val ) {
				$val = false;
			}

			if ( 'true' === $val ) {
				$val = true;
			}

			$settings[ $key ] = $val;
		}

		/**
		 * Sanitizes noptin settings.
		 * 
		 * @param array $settings Noptin settings.
		 */
		$settings = apply_filters( 'noptin_sanitize_settings', $settings );

		// Save them.
		update_noptin_options( $settings );

		wp_send_json_success( 1 );

	}