static function &getInstance()
{
if (self::$instance === false) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Return an instance of Header.
*
* @return Header Instance of Header
*/
public static function getInstance()
{
// Lazy initialization: create the object at the first request
if (empty(self::$instance)) {
// Create an instance of Header
self::$instance = new self();
}
// Return the instance
return self::$instance;
}
public static function getInstance() {
if( !isset( self::$instance ) ) {
self::$instance = new Header();
}
return self::$instance;
}