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  1. <?php
  2.  
  3. class ClA {
  4.  
  5.     public $b;
  6.  
  7.     public function __construct() {
  8.         $this->b = new ClB($this);
  9.     }
  10.  
  11.     public function x() {
  12.       echo "testing";
  13.     }
  14. }        
  15.  
  16.  
  17. class ClB {
  18.  
  19.     private $a;
  20.  
  21.     public function __construct($a) {
  22.         $this->a = $a;
  23.     }
  24.  
  25.     public function c () {
  26.        $this->a->x();
  27.     }
  28. }
  29.  
  30. $a = new ClA();
  31.  
  32. $a->b->c();
  33.  
Success #stdin #stdout 0.02s 24448KB
comments (?)
stdin 
Standard input is empty
stdout 
testing
https://ideone.com/j0aLe8
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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