felixarntz/wpdlib

<?php
/**
 * WPDLib\FieldTypes\Email class
 *
 * @package WPDLib
 * @subpackage FieldTypes
 * @author Felix Arntz <felix-arntz@leaves-and-love.net>
 * @since 0.5.0
 */

namespace WPDLib\FieldTypes;

use WP_Error as WPError;

if ( ! defined( 'ABSPATH' ) ) {
    die();
}

if ( ! class_exists( 'WPDLib\FieldTypes\Email' ) ) {
    /**
     * Class for an email field.
     *
     * @since 0.5.0
     */
    class Email extends Base {

        /**
         * Validates a value for the field.
         *
         * @since 0.5.0
         * @param mixed $val the current value of the field
         * @return string|WP_Error the validated field value or an error object
         */
        public function validate( $val = null ) {
            if ( ! $val ) {
                return '';
            }

            $input = sanitize_email( $val );
            $val = is_email( $input );
            if ( ! $val ) {
                return new WPError( 'invalid_email', sprintf( __( '%s is not a valid email address.', 'wpdlib' ), \WPDLib\FieldTypes\Manager::format( $input, 'string', 'output' ) ) );
            }

            return $val;
        }
    }

}