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Dynamic PHP Properties

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This is a class/demonstration for creating dynamic properties and storing them in an array

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  1. class AbstractModel {
  2.         private $data = array();
  3.  
  4.       protected function __set($name, $value) {
  5.         $this->data[$name] = $value;
  6.       }
  7.  
  8.       protected function __get($name) {
  9.         if (array_key_exists($name, $this->data)) {
  10.            return $this->data[$name];
  11.         }
  12.         return null;
  13.       }
  14.  
  15.       protected function __isset($name) {
  16.         return isset($this->data[$name]);
  17.       }
  18.  
  19.       protected function __unset($name) {
  20.         unset($this->data[$name]);
  21.        }
  22.  
  23.     public function printOut()
  24.     {
  25.         echo "<pre>";
  26.         print_r($this);
  27.         echo "</pre>";
  28.     }
  29. }
  30. class User extends AbstractModel {
  31.  
  32. }
  33.  
  34. // how to use
  35.  
  36. $person = new User();
  37.  
  38. $person->name = 'John';
  39. $person->age = 26;
  40. $person->address = "217 Ziller's road brooklyn NY 11553";
  41. $person->printOut();
  42.  
  43. $car = new User();
  44. $car->make = 'Honda';
  45. $car->model = 'Civic';
  46. $car->cylinder = 6;
  47. $car->transmission = 'Automatic';
  48. $car->year = 2006;
  49.  
  50. $truck = new User();
  51. $truck->make = 'Ford';
  52. $truck->model = 'F-150';
  53. $truck->cylinder = 12;
  54. $truck->transmission = 'Manual';
  55. $truck->year = 2006;
  56.  
  57.  
  58. $person->car = array('honda' =>$car, 'Ford' => $truck);
  59.  
  60. $person->printOut();
  61.  
  62.  
  63. //output
  64. User Object
  65. (
  66.     [data:private] => Array
  67.         (
  68.             [name] => John
  69.             [age] => 26
  70.             [address] => 217 Ziller's road brooklyn NY 11553
  71.         )
  72.  
  73. )
  74.  
  75. User Object
  76. (
  77.     [data:private] => Array
  78.         (
  79.             [name] => John
  80.             [age] => 26
  81.             [address] => 217 Ziller's road brooklyn NY 11553
  82.             [car] => Array
  83.                 (
  84.                     [honda] => User Object
  85.                         (
  86.                             [data:private] => Array
  87.                                 (
  88.                                     [make] => Honda
  89.                                     [model] => Civic
  90.                                     [cylinder] => 6
  91.                                     [transmission] => Automatic
  92.                                     [year] => 2006
  93.                                 )
  94.  
  95.                         )
  96.  
  97.                     [Ford] => User Object
  98.                         (
  99.                             [data:private] => Array
  100.                                 (
  101.                                     [make] => Ford
  102.                                     [model] => F-150
  103.                                     [cylinder] => 12
  104.                                     [transmission] => Manual
  105.                                     [year] => 2006
  106.                                 )
  107.  
  108.                         )
  109.  
  110.                 )
  111.  
  112.         )
  113.  
  114. )

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