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  1. <?php
  2.  
  3. class test
  4. {
  5. 	public static function run()
  6. 	{
  7. 		echo "Number is: ".$num;
  8. 	}
  9. }
  10.  
  11. class testchild extends test
  12. {
  13. 	protected static $num = 5;
  14. 	public static function exec()
  15. 	{
  16. 		$num = 5;
  17. 		parent::run();
  18. 	}
  19. }
  20.  
  21. testchild::exec();
  22.  
Success #stdin #stdout #stderr 0.01s 20520KB
comments (?)
stdin 
Standard input is empty
stdout 
Number is:
stderr 
PHP Notice:  Undefined variable: num in /home/hNfkmT/prog.php on line 7
https://ideone.com/WM7tHk
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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