Warning: syntax error, unexpected BOOL_TRUE

[ppazos]

I have an ini file that looks like this:

[general]
...
yes = "Yes"
no = "No"

When I reload my page, there is this error:

Warning: syntax error, unexpected BOOL_TRUE in .../i18n/lang/lang_en.ini on line 11 in .../i18n/I18n.php on line 304

Warning: Invalid argument supplied for foreach() in ..../i18n/I18n.php on line 324

This /lang/lang_en.ini on line 11 points to the line yes = "Yes"

Not sure why it is considering "yes" as a boolean value and why that is invalid here.

[Philipp15b]

Apparently PHP's .ini parser doesn't allow some keywords in keys: https://www.php.net/manual/en/function.parse-ini-file.php.
I haven't been able to find out how to fix that, and had no success with scanner_mode.