Message CallBack

The C-library UUDeview generates some messages about its progress as well as more serious warnings and errors. A php script should provide a Message Callback function that displays them. The function might also choose to ignore informative messages and only display the fatal ones. A Message Callback function takes two parameters. The first one is a string containing the library message. The second one is an indicator of the message seriousness. So the following integer constants simply describe the seriousness of a library message :

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