/**
 * show off @property, @property-read, @property-write
 *
 * @property mixed $regular regular read/write property
 * @property-read int $foo the foo prop
 * @property-write string $bar the bar prop
 */
class Magician
{
    private $_thingy;
    private $_bar;
 
    function __get($var)
    {
        switch ($var) {
            case 'foo' :
                return 45;
            case 'regular' :
                return $this->_thingy;
        }}
 
    function __set($var, $val)
    {
        switch ($var) {
            case 'bar' :
                $this->_bar = $val;
                break;
            case 'regular' :
                if (is_string($val)) {
                    $this->_thingy = $val;
                }}}
}

/**
 * Application is the base class for all application classes.
 *
 * @property \yii\i18n\Formatter $formatter The formatter application component. This property is read-only.
 * @property \yii\i18n\I18N $i18n The internationalization application component. This property is read-only.
 * @property \yii\log\Dispatcher $log The log dispatcher application component. This property is read-only.
 * @property array $container Values given in terms of name-value pairs. This property is write-only.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @since 2.0
 */
abstract class Application extends Module
{
 ...
}

/**
 * Application is the base class for all application classes.
 *
 * @property-read \yii\i18n\Formatter $formatter The formatter application component.
 * @property-read \yii\i18n\I18N $i18n The internationalization application component.
 * @property-read \yii\log\Dispatcher $log The log dispatcher application component.
 * @property-write array $container Values given in terms of name-value pairs.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @since 2.0
 */
abstract class Application extends Module
{
 ...
}