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<?php /** * @property string $value */ class Example { private $value; public function __construct() { $this->value = "test"; } public function __get($key) { if (property_exists($this, $key)) { return $this->{$key}; } else { return null; // or throw an exception } } public function __set($key, $value) { return; // or throw an exception } } $example = new Example(); var_dump($example->value); $example->value = "invalid"; var_dump($example->value);

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