Attribute | Description | Required |
message | the message to echo. | Yes, unless data is included in a character section within this element. |
file | the file to write the message to. | No |
append | Append to an existing file? | No - default is false. |
level | Control the level at which this message is reported. One of "error", "warning", "info", "verbose", "debug" | No - default is "warning". |