I could not find why my server kept crashing while working on the movie_details.php file with table3.php on the forums. I finally went through the code on the movie_details.php page and started removing pieces until I found the problem. I am relatively new to PHP. I finally found the problem is that the last line on page 127 of the book says to type:
You must specify the database connection to close inside the parentheses which for this particular Try It Out is $link. Therefore, the last line should read:
Hope this helps someone.