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  1. <?php
  2.  
  3. namespace Build;
  4.  
  5. class Forma
  6. {
  7. 	public static function getForma($forma, $area)
  8. 	{
  9. 		switch($forma):
  10. 			case 'circulo';
  11. 				return new Circulo($area);
  12. 			case 'quadrado':
  13. 				return new Quadrado($area);
  14. 			default:
  15. 				return new stdClass();			
  16. 		endswitch;	
  17. 	}
  18. 	public function getArea()
  19. 	{
  20. 		// return get_class($this)
  21. 		return $this->getArea();
  22. 	}
  23. }
  24.  
  25. class Circulo extends Forma 
  26. {
  27. 	private $area;
  28. 	public function __construct($area)
  29. 	{
  30. 		$this->area = $area;
  31. 	}
  32. 	public function getArea(){
  33. 		return M_PI * ($this->area)**2;
  34. 	}
  35. }
  36.  
  37. class Quadrado extends Forma 
  38. {
  39. 	private $area;
  40. 	public function __construct($area)
  41. 	{
  42. 		$this->area = $area;
  43. 	}
  44. 	public function getArea()
  45. 	{
  46. 		return ($this->area)**2;
  47. 	}
  48. }
  49.  
  50. $forma = \Build\Forma::getForma('circulo', 3);
  51. print $forma->getArea();
  52. print "<br/>";
  53. $forma = \Build\Forma::getForma('quadrado', 4);
  54. print $forma->getArea();
  55. print "<br/>";
  56.  
  57. ?>
Success #stdin #stdout 0.03s 52480KB
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stdin 
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stdout 
28.274333882308<br/>16<br/>
https://ideone.com/tp2tBm
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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