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StaticInstanceTrait, yii\base\StaticInstanceTrait | API Documentation for Yii 2.0

API Documentation for Yii 2.0

Trait yii\base\StaticInstanceTrait Method Details

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instance()

public static method

Returns static class instance, which can be used to obtain meta information.

public static static instance ( $refresh = false ) $refresh boolean

Whether to re-create static instance even, if it is already cached.

return static

Class instance.

Source code 

                public static function instance($refresh = false)
{
    $className = get_called_class();
    if ($refresh || !isset(self::$_instances[$className])) {
        self::$_instances[$className] = Yii::createObject($className);
    }
    return self::$_instances[$className];
}

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