How to open a file with all folds opened?

Question

I've got the following line in my _vimrc file which enables folding for my PHP (and other) files:

set foldmethod=indent

However, whenever I open a file it starts with every fold closed, but I would like the file to start with its folds open.

How can I execute the command zi to open up folds when vim 7.4 is launched?

I tried putting this in the _vimrc but I get a pop up window with the error message:

E492: The following is not an editor command: zi

How do I fix this?

Answer 1

zi inverts the option foldenable. But you don't want to invert it, you want to disable it. So put the following in your .vimrc:

set nofoldenable

Answer 2

Add the foldlevel option to your _vimrc:

set foldlevel=20

This opens 20 levels of folds automatically when you open a file.

I am not familiar with the zi command, I just know zR to open all folds from normal mode. In your _vimrc, you generally cannot use normal mode commands to my knowledge.