PHP/MySQL: Order artist by ASC, then order songs by artist by ASC?

Question

I am working on a music player and I'd like to list all of the songs sorted by artist going from AZ (ASC). The information is stored in a table with artist , file , song , etc.

I tried using while loops to order first the artist by AZ, then the songs by the artist AZ, but that didn't work. I never completely understood any kind of loops, so help would be appreciated!

One of the queries I used was SELECT * FROM musicinfo WHERE user='$user' ORDER BY artist ASC .

Answer 1

so you need multiple sort right? just add it on you ORDER BY clause.

SELECT * 
FROM   musicinfo 
WHERE  user = '$user' 
ORDER  BY artist ASC, file ASC

As a sidenote, the query is vulnerable with SQL Injection if the value( s ) came from the outside. Please take a look at the article below to learn how to prevent from it. By using PreparedStatements you can get rid of using single quotes around values.

• How to prevent SQL injection in PHP?