magento add event

create new module



add in magento
after that go to app/code/local/package/module/etc/config.xml


find "<frontend>" tag and put the code as given


<events>
            <event>
                <observers>
                    <Package_Module_Model_Observer>
                        <type>singleton</type>
                        <class>Package_Module_Model_Observer</class>
                        <method>Mytestmethod</method>
                    </Package_Module_Model_Observer>
                </observers>
            </event>
        </events>



then go to app/code/local/package/module/model


create a file for event like observer.php
and put the code give for event

some thing like this

<?php
class Package_Module_Model_Observer_Observer {

public function Mytestmethod($observer) {
/*write your here code*/
//$observer->getEvent();
//$event->getProduct();

}
 ?>