May 2003
Intermediate to advanced
592 pages
14h 28m
English
Content preview from PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide
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Chapter 9. Web Application Development
Like the previous two chapters—which also discussed various techniques for polishing Web applications—this one will cover a handful of topics for developing sites and bringing them to the next level: debugging, error management, and improving performance.
When developing Web applications with PHP and MySQL you end up with potential bugs in one of four or more technologies. You could have HTML issues, PHP problems, SQL errors, or MySQL mistakes. To be able to fix the bug, you must first determine what exactly is causing it. The first two sections of this chapter will itemize the best PHP and MySQL debugging principles (many of which you may have already figured out). The two error-management sections (one ...