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arnissolle/Singleton.php

Last active November 5, 2022 05:20
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Singleton.php
<?php
trait Singleton
{
private static $instance;
public static function getInstance(...$args): static
{
if (null === self::$instance) {
self::$instance = new static(...$args);
}
return self::$instance;
}
}
class Foo
{
use Singleton;
private function __construct(
private int $id
) {}
public function bar(): string
{
return "FooBar: {$this->id}";
}
}
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arnissolle commented Jun 15, 2022 •
edited
Loading 

Foo::getInstance(1)->bar(); // FooBar: 1
Foo::getInstance(2)->bar(); // FooBar: 1

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