PHP Manual
FDF 函数
Get the value of the /F key

fdf_get_file

(PHP 4, PHP 5, PHP 7)

fdf_get_file — Get the value of the /F key

说明

fdf_get_file ( resource $fdf_document ) : string

Gets the value of the /F key.

参数

fdf_document: The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().

返回值

Returns the key value, as a string.

参见

fdf_set_file() - Set PDF document to display FDF data in

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