I have the most up to date version on Xampp (5.6.20). I have downloaded php_fdf.dll and fdftk.dll and placed them in C:\xampp\php, C:\xampp\ext\php, C:\xampp\apache\bin, C:\Windows\System32, and C:\Windows\SysWOW64.
I have them each in all of these places because of advice from various other forum posts. In my php.ini file, I have extension=fdftk.dll, and extension=php_fdf.dll with my extension directive as follows: extension_dir="c:\xampp\php\ext". I have even gone into my Paths on my computer's Environmental Variables and added C:\xampp\php\ext as a path.
Still every time that I try to utilize a function, say $fdf = fdf_create();, I get
Fatal error: Call to undefined function fdf_create() in C:\xampp\htdocs\processing.php on line 3
as well as this in the apache error log:
PHP Warning: PHP Startup: Invalid library (maybe not a PHP library) 'fdftk.dll' in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library 'c:\xampp\php\ext\php_fdf.dll' - The specified module could not be found.\r\n in Unknown on line 0
I'm somewhat new to programming, so it's entirely possible that there is something simple that I'm just not aware of, but I've looked through countless forum posts, youtube videos and Xampp, PHP and Apache documentation.
Please help! All I really need is to take HTML form data in my PHP script, then put it into a PDF. It seems like loading the HTML data as FDF with the same field names would be the easiest way to do this (as I had trouble getting PDF forms to communicate properly).