From the documentation:
filename

Return the name of the temporary file associated with this object (if the object was created using the "new" constructor). 

$filename = $tmp->filename;

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This method is called automatically when the object is used as a string.
When you use $fh in a string context, you get the filename instead. This was probably intended as a convenience...

You could try passing the filehandle as a reference, or putting it into a hash or array for which a reference is passed.

In reply to Re: to write string to a temp file by keszler
in thread to write string to a temp file by Anonymous Monk

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