... querying: SQL can retrieve data in the database and present it in an
easily readable format.
• Data manipulation: SQL can insert, update, and delete database data.
• Data access control: SQL makes it ... build make use of database information to
display content, there are always a few pages that aren’t going to change much.
PHP and Dynamic Site Development
225
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... ends.
Variables and Data Types
43
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Variable Variables
On occasion it is useful to make use of variables whose contents can be treated
dynamically as a variable ... complexity.
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Global Variables
In contrast to local variables, a global variable can be accessed in any part of the
program. However, in o...
... array)
array_walk()
The array_walk() function provides an easy way to apply a function to several or
all elements in an array. Its syntax is:
int array_walk(array array, string func_name, [mixed data])
Arrays
107
NOTE ... returned value is associated with the keys 1
and value.
Chapter 5
1 04
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A call to a variable function is nothing mor...
... Listing 6- 5.
Chapter 6
132
NOTE Keep in mind that although a class can inherit characteristics from
a chain of parents, the parents’ constructors are not called automatically
when you instantiate an ... respectively.
Chapter 6
1 34
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Listing 6- 5: Building abstract classes
<?
class Vehicle {
Attribute declarations. . .
function Vehicle...
... POSIX
section.
Metacharacters
Another cool thing you can do with Perl regexps is use various metacharacters to
search for matches. A metacharacter is simply an alphabetical character preceded
by a backslash that acts to ... Linking
Just as a link can be used to direct a user to an HTML page, it can be used to lead
to a PHP- enabled page, as shown here:
< ;a href = &q...
... for a
storage media would be a database, since this also facilitates useful features such
as searching and ordering data. I’ll use a MySQL database to store the address
information. The table ... displayed?
$header_color = "#cbda 74& quot;;
$table_color = " #00 008 0";
$row_color = "#c0c0c0";
$font_color = " #00 000 0";
$font_face = "Arial, Time...
... 12/5 /00 10: 25 AM Page 373
function defaultHandler(int parser, string data) {
…
}
The input parameter parser refers to the XML parser handler, and data to the
character data that will be handled ... parts of that document should
be formatted. For example, you may want a particular word to be boldfaced and
another italicized. You may wish to use a particular font for one paragraph...
... Start the Apache server
using the following command:
./bin/apachectl start
Voilà! PHP and Apache are now ready for use.
Chapter 1
16
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Gilmore _00 FM 12/5 /00 ... Furthermore, there are several
advantages to building PHP as a server module, therefore I'll concentrate solely
on building PHP both as a static and a dynamic module. As it...