emilg1984
Members-
Posts
12 -
Joined
-
Last visited
emilg1984's Achievements
Newbie (1/14)
0
Reputation
-
I want to delete it for a smaller digital footprint.
-
My account on this website that allows me to post on the forums.
-
How do I delete my account?
-
I'm having difficulties understanding how a intermediary table works. The example on page 168 makes sense and is simple to understand (the books and authors example), but when I tried to apply it to my design it didn't work out. This is my intended design: I have a 'users' table. Each user has a course/s that he's taking, 'course_id.' The name of the course is in the 'courses' table, and the intermediary table is 'users_courses.' I want to extract the 'user_id' together with the 'course_name.' users: user_id (pk) users_courses: user_id (pk) course_id courses: course_id (pk) course_name Is this the right way to go? It doesn't make sense to me, because I can't enter multiple values for the same user in a case where he's taking more than one course since it's going to create duplicate keys. How do I make it work?
-
Page 444 example 3: I don't understand why the regular expression of checking if a string contains no spaces doesn't work for me. This works fine and prints TRUE: $pattern = '/^\S$/'; $subject = 'a'; But this prints FALSE: $pattern = '/^\S$/'; $subject = 'aa'; It doesn't have any spaces, so why is it FALSE?