PHPStorm reformat - how do I disable removing spaces in empty lines?

Question

When reformatting a file, phpstorm replaces empty lines with whitespace to just empty lines, e.g. ^[tab][tab]$ to ^$. How do I disable this?

Answer 1

You cannot -- http://youtrack.jetbrains.com/issue/IDEA-73161

I was thinking that disabling stripping whitespace characters altogether would do the job:

By changing Settings | Editor | Strip trailing spaces on Save (which nowadays has Modified Lines option)

but apparently it only works on "Save".

Related tickets:

• http://youtrack.jetbrains.com/issue/IDEA-99173

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Now you can do that on code reformat as well:

1. Settings/Preferences
2. Editor | Code Style
3. $language$ | Tabs and Indents | Keep indents on empty lines check box

(this option was introduced after this answer was provided: https://youtrack.jetbrains.com/issue/IDEA-103941#comment=27-807213)

Answer 2

I find solution in opposite topic: Configure editor to remove whitespaces in blank lines.

It works in WebStorm, and should work in PHPStorm as well:

Settings | Editor | Code Style | PHP | Tabs and Indents (tab) | Keep Indents on Empty Lines" (check box)