December 2001
Intermediate to advanced
520 pages
13h 42m
English
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Debugging
Every programmer is constantly on the lookout for a better way to minimize errors and problems in their scripts. Unfortunately, most programmers learn debugging through sheer trial and error—and lots of it. Here are some tips for debugging your scripts:
View the HTML source when a problem happens. Some browsers—for example, Netscape Navigator—will show a blank page even when a PHP error occurs toward the end of a page. Viewing the source may be the only way to see what the issue is.
Use a text editor that checks for balanced parentheses, braces, tags, quotation marks, and more.
Use reverse testing when logical errors occur. Reverse testing is the method of switching your conditionals. For example,
if ($variable = 5) { ...may not seem ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.