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  1. <?php
  2. class A
  3. {
  4.     private $count = 0;
  5.  
  6.     public function put($var){
  7.         $this->count++;
  8.         $count = $this->count;
  9.         $this->$count = $var;
  10.     }
  11.  
  12.     public function pop(){
  13.         $count = $this->count;
  14.         $var = $this->$count;
  15.         $this->count--;
  16.         return $var;
  17.     }
  18. }
  19.  
  20. $a = new A();
  21. $a->put(5);
  22. $a->put(8);
  23. echo $a->pop() . PHP_EOL;
  24. echo $a->pop();
Success #stdin #stdout 0.02s 24360KB
comments (?)
stdin 
Standard input is empty
stdout 
8
5
https://ideone.com/qLiq5w
language:
PHP (php 7.3.5)
created:
4 years ago
visibility:
public

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