input.php

См. документацию.

<?php
 
namespace Bitrix\Main\Web\DOM\Element;
 
use Bitrix\Main\Web\DOM\Element;
 
class Input extends Element
{
    public $name = null;
 
    public $value = null;
 
    public function __construct($name, $value = null)
    {
        parent::__construct($name);
 
        $this->name = mb_strtolower($name);
        if($value !== null)
        {
            $this->value = $value;
        }
    }
}