spiral php testing

Notice: Undefined index: spiraltext in F:\Data\Code\www\htdocs\stuff\spiraltest.php on line 3

Fatal error: Uncaught exception 'PDFlibException' with message 'pdf_open_file() expects exactly 2 parameters, 1 given' in F:\Data\Code\www\htdocs\stuff\spiraltest.php:6 Stack trace: #0 F:\Data\Code\www\htdocs\stuff\spiraltest.php(6): pdf_open_file(Resource id #2) #1 {main} thrown in F:\Data\Code\www\htdocs\stuff\spiraltest.php on line 6