PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

140 Chapter 5 Reusing Code and Writing Functions
The require() statements in home.php load header.php and footer.php.
As mentioned previously, the name given to these files does not affect how they are
processed when you call them via require(). A common convention is to call the partial
files that will end up included in other files something.inc (here, inc stands for
include).This is not recommended as a general strategy, as .inc files will not be interpreted
as PHP code unless the web server has been configured specifically for this.
If you’re going to do this, you should place your include files in a directory that can
be seen by your scripts but does not permit your include files to be loaded individually
via the web server—that is, outside the web document tree.This setup is a good strategy
because it prevents these files from being loaded individually, which would either (a)
probably produce some errors if the file extension is .php but contains only a partial
page or script, or (b) allow people to read your source code if you have used another
extension.
The file header.php contains the CSS definitions that the page uses, the tables that
display the company name, and navigation menus, as shown in Listing 5.3.
Listing 5.3
header.php—The Reusable Header for All TLA Web Pages
TLA Consulting Pty Ltd
h1 {color:white; font-size:24pt; text-align:center;
font-family:arial,sans-serif}
.menu {color:white; font-size:12pt; text-align:center;
font-family:arial,sans-serif; font-weight:bold}
td {background:black}
p {color:black; font-size:12pt; text-align:justify;
font-family:arial,sans-serif}
p.foot {color:white; font-size:9pt; text-align:center;
font-family:arial,sans-serif; font-weight:bold}
a:link,a:visited,a:active {color:white}
TLA Consulting