fdf_header
(PHP 4 >= 4.3.0, PHP 5 < 5.3.0, PECL fdf SVNf)
fdf_header — Sets FDF-specific output headers
Description
fdf_header ( ) : void
This is a convenience function to set appropriate HTTP headers for FDF output. It sets the Content-type: to application/vnd.fdf.
Return Values
No value is returned.
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https://www.php.net/manual/en/function.fdf-header.php