Chapter 4. Realistic and Practical Applications: Your Application on the Web

Sometimes you have to be realistic and rethink your plans.
Or plan more carefully in the first place. When your application’s out there on the Web, you may discover that you haven’t planned well enough. Things that you thought would work aren’t good enough in the real world. This chapter takes a look at some real-world problems that can occur as you move your application from testing to a live site. Along the way, we’ll show you more important PHP and SQL code.
Elmer has some irritated customers
Elmer’s customer mailing list has grown by leaps and bounds, but his emails have generated some complaints. The complaints vary, but they all seem to involve customers receiving blank email messages or multiple messages, neither of which is good. Elmer needs to figure out what’s gone wrong and fix it. His business depends on it.


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