Bat file how to replace a string in a php file while keeping Russian letters?

Question

cmd/bat

Hello!
I have a php (UTF8) file. It needs to replace foo with too.
I make the following code in a bat file

powershell -Command "(gc index.php) -replace '{PARARAM}', 'bar' | Out-File index1.php"

foo changes to too, but at the same time all Russian letters fly (определяем)
I played with encodings for 2 hours - so far without results.
If there is an easier way without (powershell) - I will be glad

Answer 1

if there are php files, it is logical that puff is installed, run the puff script, specify the default utf8 codepage in the settings.