[SOLVED] Singleton constructor?

[Andy-H]

If I have a database class which implements the singleton design and allow it to establish a connection in the constructor does it make a call to the classes' __CONSTRUCT() every time I call

db::getInstance()->whatEver();

 

Thanks for any replies. 

[Mark Baker]

Only if the getInstance() method tells it to.

 

class myClass {

private static $_instance;

public static function getInstance() {
	if (!isset(self::$_instance) || is_null(self::$_instance)) {
		self::$_instance = new myClass();
	}

	return self::$_instance;
}	//	function getInstance()

function __construct() {
	echo 'called constructor<br />';
}	//	function __construct()

}	//	class myClass

myClass::getInstance();	//	Should display "called constructor"
myClass::getInstance();	//	Should not display "called constructor"

[Andy-H]

Thanks, I'll give that a go lol =D

[Andy-H]

Yup, it only echo's constructor called once with four calls, thanks.