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Use static property instead of static variable

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I think better to use OOP static property for Singleton class like in other resources, isn't it?
- (domnikl/DesignPatternsPHP Singleton)[https://github.com/domnikl/DesignPatternsPHP/blob/master/Creational/Singleton/Singleton.php#L13]
- (Singleton Wiki)[https://uk.wikipedia.org/wiki/%D0%9E%D0%B4%D0%B8%D0%BD%D0%B0%D0%BA_(%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%82%D1%83%D0%B2%D0%B0%D0%BD%D0%BD%D1%8F)#.D0.A0.D0.B5.D0.B0.D0.BB.D1.96.D0.B7.D0.B0.D1.86.D1.96.D1.8F_.D0.BD.D0.B0_PHP5]
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Bocharsky Victor
2014-12-19 11:09:40 +02:00
parent 0ecfd9f4f3
commit 0f6709c751
1 changed files with 9 additions and 7 deletions
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16
pages/Design-Patterns.md
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@@ -72,21 +72,23 @@ one instance of a particular class. The singleton pattern enables us to do this.
<?php <?php
class Singleton class Singleton
{ {
/**
* @static Singleton The reference to *Singleton* instance of this class
*/
private static $instance;
/** /**
* Returns the *Singleton* instance of this class. * Returns the *Singleton* instance of this class.
* *
* @staticvar Singleton $instance The *Singleton* instances of this class.
*
* @return Singleton The *Singleton* instance. * @return Singleton The *Singleton* instance.
*/ */
public static function getInstance() public static function getInstance()
{ {
static $instance = null; if (null === static::$instance) {
if (null === $instance) { static::$instance = new static();
$instance = new static();
} }
return $instance; return static::$instance;
} }
/** /**