Ignored unknown option: phpVersion, braceStyle

[coffebar]

~/.prettierrc.json

{
	"overrides": [
		{
			"files": "*.php",
			"options": {
				"parser": "php",
				"useTabs": true,
				"braceStyle": "1tbs",
				"phpVersion": "7.1",
				"tabWidth": 2
			}
		}
	]
}

prettier --log-level debug dev/custom-theme/functions.php

[debug] normalized argv: {"":["dev/custom-theme/functions.php"],"cache":false,"color":true,"editorconfig":true,"logLevel":"debug","configPrecedence":"cli-override","debugRepeat":0,"ignorePath":[".gitignore",".prettierignore"],"plugins":[],"_":["dev/custom-theme/functions.php"],"__raw":{"_":["dev/custom-theme/functions.php"],"cache":false,"color":true,"editorconfig":true,"log-level":"debug","config-precedence":"cli-override","debug-repeat":0,"ignore-path":[".gitignore",".prettierignore"],"plugin":[]}}
[debug] resolve config from '/home/abc/dev/custom-theme/functions.php'
[debug] loaded options `{"parser":"php","useTabs":true,"braceStyle":"1tbs","phpVersion":"7.1","tabWidth":2}`
[warn] Ignored unknown option { braceStyle: "1tbs" }.
[warn] Ignored unknown option { phpVersion: "7.1" }.
[debug] applied config-precedence (cli-override): {"parser":"php","tabWidth":2,"useTabs":true}

Why does it ignore options braceStyle and phpVersion?

[warn] Ignored unknown option { braceStyle: "1tbs" }.
[warn] Ignored unknown option { phpVersion: "7.1" }.

Readme has these options.

Env context: Prettier and this plugin is installed via npm on Linux.

[coffebar]

if i add to ~/.prettierrc.json this line

 "plugins": ["@prettier/plugin-php"],

then i get error:

[error] Cannot find package '@prettier/plugin-php' imported from /home/abc/noop.js

however, this directory ~/.node_modules/lib/node_modules/@prettier/plugin-php is not empty

[coffebar]

I figured out this issue is related to prettier itself.