You may specify the route as a string, e.g., site/index. You may also use an array
if you want to specify additional query parameters for the URL being created. The
array format must be:
php
generates: /index.php?r=site%2Findex¶m1=value1¶m2=value2
['site/index', 'param1' => 'value1', 'param2' => 'value2']
If you want to create a URL with an anchor, you can use the array format with a # parameter.
For example,
php
generates: /index.php?r=site%2Findex¶m1=value1#name
['site/index', 'param1' => 'value1', '#' => 'name']
The URL created is a relative one. Use UrlManager::createAbsoluteUrl to create an absolute URL.
Note that unlike [[\yii\helpers\Url::toRoute()]], this method always treats the given route
as an absolute route.