August 2000
Intermediate to advanced
800 pages
13h 15m
English
Content preview from Core PHP Programming: Using PHP to Build Dynamic Web SitesBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Cloaking
When creating a plain HTML site, you confront two paths: create a site that works great in only one browser, or create a mediocre site that works in all browsers. PHP allows you to create a site that works great in any browser. The HTTP_USER_AGENT variable contains the string most browsers send to the Web server to identify themselves. This variable may be used to choose between versions of content. This cloaks the inner workings of the site from the browser. A seamless experience is provided to visitors, despite differences in browser capabilities.
Chapter 16, "Parsing and String Evaluation," contains an example of using regular expressions to parse HTTP_USER_AGENT into understandable elements. In most cases browser name and version ...
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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.