php的帮助文档,涉及到PHP的案例和基本语法,以及实际应用内容

												 				  Sets FDF-specific output headers				  				 				 				 fdf_get_version				 fdf_next_field_name				 FDF Functions				 PHP Manual								 				  fdf_header				  (PHP 4 >= 4.3.0, PHP 5)fdf_header — Sets FDF-specific output headers								 				 				 				  Description				  				   void 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.				  				 																 fdf_get_version				 fdf_next_field_name				 FDF Functions				 PHP Manual