battles/classes/ShopItem.php

<?php

class ShopItem extends Item
{
    public $count;
    public $razdel;
    public $ecost;
    public $zeton;
    public $onlyone;
    public $shshop;

    public function printInfo()
    {
        parent::printBaseInfo();
        parent::printRequirements();
        parent::printBonuses();
        parent::printMagic();
    }

    /**
     * Для кнопок управления под картинкой прелмета в зависимости от ситуации.
     */
    public function printControls()
    {
        $btnPrice = "Купить за {intval($this->cost)} кр.";
        $btnLink = "/shop.php?buy={$this->id}&rnd=".mt_rand();
        echo <<<BTN
<p><input type="button" style="background: darkgrey; border: 1px solid grey; border-radius: 2px;" value="{$btnPrice}"
                                   onclick="location='{$btnLink}'">
BTN;
        if ($this->count > 0) echo "<br><small>(Осталось: {$this->count} штук)</small>";
    }
}