I installed the PHP Server extension for VS Code and added two lines to settings.json:

"php.validate.executablePath": "С://php-server//php.exe",
"phpserver.phpPath": "С://php-server//php.exe"

I inserted these lines before
 } and added a comma on the previous last line.
I restarted VS Code and got the message: Unable to validate because h:\web\php\с:\php-server\php.exe is not a valid PHP executable. Use the php.validate.executablePath parameter to configure the PHP executable.
No matter how I tried, it still looks for h on the disk.

I installed the PHP Server extension for VS Code and added two lines to settings.json:

"php.validate.executablePath": "С://php-server//php.exe",
"phpserver.phpPath": "С://php-server//php.exe"

I inserted these lines before the closing bracket ("}") and added a comma on the previous to last line.

I restarted VS Code and got the message:

Unable to validate because h:\web\php\с:\php-server\php.exe is not a valid PHP executable. Use the php.validate.executablePath parameter to configure the PHP executable.

No matter what I tried, it still looks for php.exe on the disk with the device letter "h".