This is my first php program!

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Chapter 2: Language Basics
The alternate syntax is:
foreach (
$array
as
$key => $value
):
// ...
endforeach;
declare
The
declare
statement allows you to specify execution directives for a block of code.
The structure of a
declare
statement is:
declare (
directive
)
statement
Currently, there is only one
declare
form, the ticks directive. Using it, you can spec-
ify how frequently (measured roughly in number of code statements) a tick function
registered with
register_tick_function( )
is called. For example:
register_tick_function("some_function");
declare(ticks = 3) {
for($i = 0; $i < 10; $i++) {
// do something
}
}
In this code,
some_function( )
is called after every third statement is executed.
exit and return
The
exit
statement ends execution of the script as soon as it is reached. The
return
statement returns from a function or (at the top level of the program) from the script.
The
exit
statement takes an optional value. If this is a number, it’s the exit status of
the process. If it’s a string, the value is printed before the process terminates. The
exit( )
construct is an alias for
die( )
:
$handle = @mysql_connect("localhost", $USERNAME, $PASSWORD);
if (!$handle) {
die("Could not connect to database");
}
This is more commonly written as:
$handle = @mysql_connect("localhost", $USERNAME, $PASSWORD)
or die("Could not connect to database");
See Chapter 3 for more information on using the
return
statement in functions.
Including Code
PHP provides two constructs to load code and HTML from another module:
require
and
include
. They both load a file as the PHP script runs, work in conditionals and
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