45 lines
1.5 KiB
PHP
45 lines
1.5 KiB
PHP
<?php
|
|
/**
|
|
* Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
|
|
*
|
|
* You are hereby granted a non-exclusive, worldwide, royalty-free license to
|
|
* use, copy, modify, and distribute this software in source code or binary
|
|
* form for use in connection with the web services and APIs provided by
|
|
* Facebook.
|
|
*
|
|
* As with any software that integrates with the Facebook platform, your use
|
|
* of this software is subject to the Facebook Developer Principles and
|
|
* Policies [http://developers.facebook.com/policy/]. This copyright notice
|
|
* shall be included in all copies or substantial portions of the software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
namespace FacebookPixelPlugin\FacebookAds\Object\ServerSide;
|
|
|
|
abstract class Singleton {
|
|
/**
|
|
* @var array
|
|
*/
|
|
protected static $instances = array();
|
|
|
|
|
|
private function __construct() {}
|
|
|
|
public static function getInstance() {
|
|
$fqn = get_called_class();
|
|
if (!array_key_exists($fqn, static::$instances)) {
|
|
static::$instances[$fqn] = new static();
|
|
}
|
|
|
|
return static::$instances[$fqn];
|
|
}
|
|
}
|