30 lines
619 B
PHP
30 lines
619 B
PHP
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<?php
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namespace Cmb2Grid\DesignPatterns;
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/**
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* Description of Singleton.
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*
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* Pablo Pacheco <pablo.pacheco@origgami.com.br>
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*/
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if ( ! class_exists( '\Cmb2Grid\DesignPatterns\Singleton' ) ) {
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abstract class Singleton {
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abstract protected function __construct();
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/**
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* Returns the *Singleton* instance of this class.
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*
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* @staticvar Singleton $instance The *Singleton* instances of this class.
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*
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* @return Current_Class_Name
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*/
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public static function getInstance() {
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static $instance = null;
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if ( null === $instance ) {
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$instance = new static();
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}
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return $instance;
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}
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}
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}
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