Thread:Project:Support desk/XML Dump

Alright, so I'm preparing to do my first ever upgrade, but I'm a little confused as to how to perform the xml dump. As far as I understand, you use the command line and run dumpBackup.php? Well, I typed C:\MediaWiki\xampp\php\php.exe C:\MediaWiki\xampp\htdocs\testwiki\maintenance\dumpBackup.php onto the Windows command line, and then tried typing php dumpBackup.php, but it didn't really do anything (it said that 'php' is not recognized as an internal or external command, operable program or batch file. Where exactly did I go wrong?