Page 210 - Beginning PHP 5.3

Part II: Learning the Language

Figure 8 - 1

Static Properties

You encountered static function variables in the previous chapter. You can also create static class
properties in a similar way, by adding the static keyword just before the property name:

class MyClass {
public static $myProperty;

}
Static members of a class are independent of any particular object derived from that class. To access
a static property, you write the class name, followed by two colons ( :: ), followed by the property name
(preceded by a $ symbol):
MyClass::$myProperty = 123;

Here ’ s an example using the Car class:

class Car {
public $color;
public $manufacturer;
static public $numberSold = 123;
}

Car::$numberSold++;

echo Car::$numberSold; // Displays “124”

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