how to unfold vscode code example

Example 1: collapse all code vscode

Use :
Ctrl + K + 0 to fold all 
Ctrl + K + J to unfold all

Example 2: how to collapse or expand functions in laravel vscode

Fold All: CTRL+K, CTRL+0 (zero)

Fold Level [n]: CTRL+K, CTRL+[n]*

Unfold All: CTRL+K, CTRL+J

Fold Region: CTRL+K, CTRL+[

Unfold Region: CTRL+K, CTRL+]