@ 2015-10-17T17:05:16Z

<?php class shapeClass { public function __set($name, $value) { if (!property_exists($this, $name)) { throw new Exception("No such property: $name"); } $this->{$name} = $value; } public function __get($name) { if (!property_exists($this, $name)) { throw new Exception("No such property: $name"); } return $this->{$name}; } } /* Declaring your struct/shape */ $person = new class() extends shapeClass { public $age = 15, $height = 72, $weight = 200; }; var_dump($person); var_dump($person->age); $person->age = 19; var_dump($person->age); try { var_dump($person->badProp); } catch (Exception $e) { var_dump($e); } try { $person->badProp = 5; } catch (Exception $e) { var_dump($e); }