The $filename variable is not yet defined inside the switch statement therefore the notification message in Slack is empty.
The fix is simply to move the attach() command down into the if statement after the switch where the $filename variable has already been instantiated and can be used.
The
$filenamevariable is not yet defined inside theswitchstatement therefore the notification message in Slack is empty.The fix is simply to move the attach() command down into the
ifstatement after the switch where the$filenamevariable has already been instantiated and can be used.