optin / includes / traits / trait-singleton.php

trait-singleton.php in WowOptin: Next-Gen Popup Maker – Create Stunning Popups and Optins for Lead Generation trunk, at includes/traits/trait-singleton.php

27 lines 426 B

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1	<?php
2
3	namespace OPTN\Includes\Traits;
4
5	trait Singleton {
6	private static $instance = null;
7
8	/**
9	* Constructor
10	*
11	* @return void
12	*/
13	protected function __construct() {}
14
15	final public static function get_instance() {
16	if ( null === static::$instance ) {
17	static::$instance = new static();
18	}
19	return static::$instance;
20	}
21
22	/**
23	* Prevent cloning.
24	*/
25	private function __clone() {}
26	}
27