- var_dump: documentation ( source)
<?php
abstract class T
{
static protected $instanses;
final private function __construct(){
}
public static function getInstance()
{
if (!isset(static::$instanses)) {
static::$instanses = new static;
}
return static::$instanses;
}
}
class A extends T
{
static protected $instanses;
}
class B extends A
{
static protected $instanses;
}
$t = A::getInstance();
var_dump($t);
$t1 = B::getInstance();
var_dump($t1);
?>