$to denote variables. Frequently I want to debug some variable by outputting it's value in HTML. For example:
<p>Rob here with variableName [$variableName]</p>
I do this often enough that I have created an UltraEdit macro to make is easier. Make sure you have the variable name (e.g.
variableNamecopied to the clipboard and then run this macro. It will ouput
InsertMode ColumnModeOff HexOff Paste " [$" Paste "]"
If you appreciate this, you might like to have a look at the other UltraEdit macros I use.