header problem

Good day

I have recently installed rlib and it looks great, I have been messing 
about with the examples in the documentation but I am running into a 
little problem.

when I use the example in the pdf book to generate pdf or csv output I 
receice the following error.

*Warning:* Header may not contain more than a single header

I am using the PHP bindings by the way.

Any help would be greatly appreciatted

Thank you,
Wayn0

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