Developer's Guide :: Properties Methods Events
From Delphi for PHP Documentation Wiki
A property is an attribute of your component, for example, Color, and that attribute is taken into account when rendering the component in the browser.
A method is an action you can perform with a component, for example, show(), you are telling the component to show itself on the browser.
An event is a notification you receive from a component and you can write code (the event handler) to react to that notification, for example, Button has the OnClick event which is fired when the user clicks the button and you can write code to react to that clicking.

