Aer/tests/singleton_test.aer

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final class Test {
private $value;
private function __construct() {
}
/* This is singleton */
public function getInstance() {
static $instance;
if(!$instance) {
$instance = new Test();
}
return $instance;
}
public function get() {
return $this->value;
}
public function set($value = 0) {
$this->value = $value;
}
}
final class Main {
public function __construct() {
$testA = Test::getInstance();
$testA->set(5);
$testB = Test::getInstance();
var_dump($testB->get());
}
} /* class */
new Main();