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<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName |
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/** |
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* Authorizer |
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* |
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* @license GPL-2.0+ |
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* @link https://github.com/uhm-coe/authorizer |
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* @package authorizer |
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*/ |
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|
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namespace Authorizer; |
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|
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/** |
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* Base class that all other classes extend (provides static accessor variable). |
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*/ |
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abstract class Singleton { |
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/** |
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* Instances of any child classes. |
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* |
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* @var object[] Array of objects of any instantiated child classes. |
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*/ |
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private static $instances = array(); |
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|
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|
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/** |
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* Access the singleton instance of the requested class (create a new one if |
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* needed). |
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* |
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* @return object Object of the requested class. |
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*/ |
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public static function get_instance() { |
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$class = get_called_class(); |
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if ( ! isset( self::$instances[ $class ] ) ) { |
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self::$instances[ $class ] = new static(); |
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} |
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|
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return self::$instances[ $class ]; |
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} |
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|
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|
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/** |
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* Disable constructor to prevent creation of multiple instances (protected |
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* so we can create a new instance within get_instance() though). |
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*/ |
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protected function __construct() { |
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} |
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|
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/** |
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* Disable cloning of singletons. |
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*/ |
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private function __clone() { |
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} |
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} |
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