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  1. <?php
  2.  
  3. class my_class
  4. {
  5.     public $var1;
  6.  
  7.     public $var2;
  8.  
  9.     public $var3;
  10.  
  11. 	private $data;
  12.  
  13. 	public function __construct()
  14. 	{
  15. 	    $this->data = new stdClass;
  16. 	    $this->data->var1 = 'a';
  17. 	    $this->data->var2 = 'b';
  18. 	    $this->data->var3 = 'c';
  19. 	    $this->assignReferences();
  20. 	}
  21.  
  22. 	public function __clone()
  23. 	{
  24. 	    $this->data = json_decode(json_encode($this->data));
  25. 	    $this->assignReferences();
  26. 	}
  27.  
  28. 	private function assignReferences()
  29. 	{
  30. 	    $this->var1 = &$this->data->var1;
  31. 	    $this->var2 = &$this->data->var2;
  32. 	    $this->var3 = &$this->data->var3;        
  33. 	}
  34. }
  35.  
  36. $original = new my_class;
  37. $new = clone $original;
  38. $new->var3 = 'd'; 
  39.  
  40. echo $original->var3; // Output Should Be "c"
Success #stdin #stdout 0.01s 20568KB
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stdin
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Standard input is empty
stdout
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c
https://ideone.com/HI66hY
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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