PHP - Manual: fdf_get_file
2024-12-22
(PHP 4, PHP 5 < 5.3.0, PECL fdf SVN)
fdf_get_file — Get the value of the /F key
$fdf_document
): string
Gets the value of the /F
key.
Returns the key value, as a string.
官方地址:https://www.php.net/manual/en/function.fdf-get-file.php