Magento: Get store information

 Get store data
    Mage::app()->getStore();

    Store Id
    Mage::app()->getStore()->getStoreId();

    Store code
    Mage::app()->getStore()->getCode();

    Website Id
    Mage::app()->getStore()->getWebsiteId();

    Store Name
    Mage::app()->getStore()->getName();

    Is Active
    Mage::app()->getStore()->getIsActive();

    Store Home Url
    Mage::app()->getStore()->getHomeUrl();