Object Methods
A method is a function defined within a class. Every object instantiated from the class has the method’s functionality. Listing 9.1 adds a method to the Item class (line 5).
Listing 9.1. A Class with a Method
1: <?php
2:class Item {
3: var $name = "item";
4:
5: function getName() {
6: return "item";
7: }
8: }
9:
10: $item = new Item ();
11: print $item->getName ();
12: // outputs "item"
13: ?>
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As you can see, a method looks and behaves much like a normal function. A method is always defined within a class, however. You can call an object method using the -> operator. Importantly, methods have access to the class’s member variables. In Listing 9.2, we return the string "item" when asked for the Item object’s name. Clearly, ...
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