Avoid the five most common PHP database problems

[solrac]

Databases are powerful tools, and -- like all powerful tools -- they can be abused if you don't know how to use them properly. You can create database design, database access, and the PHP business logic code that sits on top of it in any number of ways, and you often end up getting it wrong. This article illustrates five common problems in database design, in the PHP code that accesses databases, and how to avoid them. [details]