Strange search behavior

[carsarecoffins]

I have recently started working with PHP and FX.php to extract data from FileMaker. I have been looking at the sample files that come with FX and they seem to exhibit a strange search behavior. The FMP file is set up as a list of books with author, title etc. The sample index page has a small search form with the author and title fields available for search. If I put either a lowercase or uppercase b In the author field the one record that contains a b in the author field is returned. However when I put a k in the title field the record with FileMaker in the title does not come up, what does come up though are some records I added with random characters in the title field including k. Is there some thing I am missing?