December 2005
Beginner
974 pages
31h 50m
English
Content preview from Running Linux, 5th EditionBecome 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,
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.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.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.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.
PHP
To complete our combo of Linux, Apache, PHP, and MySQL, we still need the PHP language interpreter. PHP is a recursive acronym that expands to PHP: Hypertext Preprocessor. It has been in development for several years now; the versions most commonly used are Version 4 and Version 5. We use PHP4 in this chapter, because it was the most often used version at the time of writing. The changes between Versions 4 and 5 are either in underlying implementation or advanced features that will interest you only when you pile up a large number of PHP files.
Some Sample PHP
One of the nice things about PHP is that PHP code can be
entered directly into HTML code. The web server will pass everything
between <?php and ?> to the PHP module, which will
interpret and execute the commands. Here is a very simple example
for some PHP code in an HTML page; if you already have set up PHP,
you could run this directly from your web server (if not, we'll tell
you how to set up PHP shortly):
<html> <body> <?php echo "Hi, "; ?> LAMP enthusiasts. </body> </html>
As you probably already have expected, your browser will output the following text:
Hi, LAMP enthusiasts.
This extremely simple example shows how Apache works together
with the PHP interpreter: the code between <?php and ?> is passed to the PHP interpreter,
which executes the echo command, which in turn
outputs its parameters to the web browser. In addition to this, the
line LAMP enthusiasts is simply added as ordinary HTML text (and since it doesn't have ...
Become 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,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.