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  1. <?php
  2.  
  3. class Helper
  4. {
  5.     protected static $_instance;
  6.     public static function _instance() {
  7.         if(is_null(self::$_instance)) self::$_instance = new self();
  8.         return self::$_instance;
  9.     }
  10.     public $title = 'title';
  11.     public function meta() {
  12.         $this->title = 'new title';
  13.         return self::$_instance;
  14.     }
  15. }
  16.  
  17. var_export(Helper::_instance()->meta());
Success #stdin #stdout 0.02s 23572KB
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stdin 
Standard input is empty
stdout 
Helper::__set_state(array(
   'title' => 'new title',
))
https://ideone.com/BwjXXd
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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