public function testSetInstance()
{
$instance = SingletonChild::getInstance();
$newInstance = new SingletonChild();
SingletonChild::setInstance($newInstance);
$this->assertEquals($newInstance, SingletonChild::getInstance());
}
<?php
use PhpDaddy\Contract\Singleton\AbstractSingleton;
class SingletonChild extends AbstractSingleton
{
protected function __construct()
{
}
}
$obj = SingletonChild::getInstance();
$anotherObj = SingletonChild::getInstance();
}
class SingletonChild extends Singleton
{
public function test()
{
return 'Test';
}
}
$obj = Singleton::getInstance();
echo get_class($obj) . '<br />';
$anotherObj = SingletonChild::getInstance();
echo get_class($anotherObj) . '<br />';
echo $anotherObj->test() . '<br />';
var_dump($anotherObj === Singleton::getInstance());
// bool(false)
var_dump($anotherObj === SingletonChild::getInstance());
// bool(true)
// -----------
/**
* Class Singletons
* Register singletons in class
*/
class Singletons
{
private static $singleton = array();
public static function getSingleton($class)
{
if (!isset(self::$singleton[$class])) {
self::$singleton[$class] = new $class();
}
return self::$singleton[$class];
<?php require 'Singleton.php'; require 'SingletonChild.php'; $obj = Singleton::getInstance(); $child = SingletonChild::getInstance(); var_dump($obj === Singleton::getInstance()); var_dump($obj === SingletonChild::getInstance()); var_dump($child === SingletonChild::getInstance());
