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<?php $person = new class($controller) { public $age = 15, $height = 72, $weight = 200; public function __set($name, $value) { if (!property_exists($controller, $name)) { throw new Exception("No such property: $name"); } $this->{$name} = $value; } public function __get($name) { if (!property_exists($controller, $name)) { throw new Exception("No such property: $name"); } return $this->{$name}; } }; var_dump($person); var_dump($person->age); $person->badProp = 5;
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $controller in /in/ShZKs on line 3 object(class@anonymous)#1 (3) { ["age"]=> int(15) ["height"]=> int(72) ["weight"]=> int(200) } int(15) Warning: Undefined variable $controller in /in/ShZKs on line 6 Fatal error: Uncaught TypeError: property_exists(): Argument #1 ($object_or_class) must be of type object|string, null given in /in/ShZKs:6 Stack trace: #0 /in/ShZKs(6): property_exists(NULL, 'badProp') #1 /in/ShZKs(22): class@anonymous->__set('badProp', 5) #2 {main} thrown in /in/ShZKs on line 6
Process exited with code 255.

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