Suspect the BOM for Mysterious PowerShell Syntax Errors in Japanese

I saved a PowerShell script written by an AI and ran it for the first time. What came back was this error.Missing '=' ...
CCM

Parse error in PHP: syntax error, unexpected $end

In PHP a Parse error is an error that occurs during the parsing phase of a PHP's script execution. Parsing is the process of analysing the code to check that it has the correct syntax and can then be ...