What do entries like mean in the Yii2 documentation?

Question

Yii

I took up learning yii2 and while reading the documentation I came across notations like


[[yii\base\Model::rules ()|rules()]] etc.
It is clear from the context that this is how the framework classes are designated, but did not quite understand what the vertical bar means? Why in one case [[yii\base\Object |Object ]] and not [[yii\base\Object \Object ]], for example?
Similar question about methods.

Answer 1

I believe it's GitHub Flavored Markdown . In a specific case, this is either malformed markup for links, or links to non-existent translation pages

Answer 2

Very similar to wiki markup
https://en.wikipedia.org/wiki/Help:Wiki_markup#Ren...

Answer 3

| means "or". That is, the argument can take either the parent object Yii \yii\base\Object, which is inherited by all objects in Yii2, or just any object.

Answer 4

hmm, didn't notice before.
perhaps the alias is already crammed into memory, and you can use the class simply by entering use Object.