53 lines
738 B
PHP
53 lines
738 B
PHP
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<?php
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/**
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* Singleton class trait.
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*
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* @package BlockArt\Traits
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*/
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namespace BlockArt\Traits;
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/**
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* Singleton trait.
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*/
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trait Singleton {
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/**
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* Holds single instance of the class.
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*
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* @var null|static
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*/
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private static $instance = null;
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/**
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* Get instance of the class.
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*
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* @return static
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*/
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final public static function init() {
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if ( is_null( static::$instance ) ) {
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static::$instance = new static();
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}
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return static::$instance;
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}
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/**
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* Constructor.
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*/
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protected function __construct() {}
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/**
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* Disable unserializing of the class.
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*
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* @return void
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*/
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public function __wakeup() {}
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/**
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* Disable cloning of the class.
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*
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* @return void
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*/
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public function __clone() {}
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}
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