But that still does not make this WinSCP question.

But anyway, you pass variables to the argument as with any other string in PHP:

exec("c:\WINDOWS\system32\cmd.exe /c START C:\inetpub\.....\sync.bat $variable1 $variable2");

Because I am using windows cmd to execute WinSCP batch file

what does this have to do with WinSCP?

I am using php to execute cmd which executes my batch file. Is there a way to pass my php variables to the batch file? Below is my php code which is working well: