public function Headers
Prototype:
null-return Headers(string headerdata)
Parameters
headerdata
a string containing the data to be outputed as a header entry
Description:
Send a raw HTTP header.
Notice: Do not use this function after the output was started using operator << .
Return value:
Return null
Example
...
doc.Header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
doc.Header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
...