an easy one

[Anon]

I am new to php and I am trying to do something rather easy (I think).
I have some links that opens a php file like this:
.....book.php?num=1
.....book.php?num=2
...........

book.php takes the values for every book (title,description,price etc) from another file book.conf.php

book.php

<?php
include "header.php";
include "stylesin.css.php";
include "body.php";
include "footer.php";
include "book.conf.php";
echo "
$book_header
$title
$book_body_1
$cost
$book_body_2
$pic
$book_body_3
$description
$book_footer
";

?>

book.conf.php

<?php
if ($num == 1){
$title = '1111111111';
$cost = '11111111111111111';
$pic = '1.jpg';
$description = '1111111111111111';
}

if ($num == 2){
$title = '222222222222222222';
$cost = '22222222222222222222';
$pic = '2.jpg';
$description = '2222222222222222';
}
?>

and on the page the link is like this:
<a href="book.php?num=1">BOOK1</a>
<a href="book.php?num=2">BOOK2</a>

For a reason you know and I don't it don't works.It opens the page but it takes no parameters from book.conf.php. Abviously the conditions are never true.
Thanks in advance

[flipis]

Try the following:

if using PHP 4.1.1 or lower:

$HTTP_GET_VARS["variable_name"]

to reference the variable passed. In your case:

$HTTP_GET_VARS["num"]

if using PHP 4.1.2 or greater

$_GET["num"]

Hope it helps you

fLIPIS

[Anon]

I agree with fLIPIS that register_globals may be OFF which is why you must reference you varibales from the GET array.

I would also suggest that you store your book list in an array. This would save you a lot of code since you could easily create a loop to display all of your books for links or to show titles, etc. something like this:

<?
$book_array = array (

'1' => array (
'title' => '1111111111',
'cost' => '11111111111111111',
'pic' => '1.jpg',
'description' => '1111111111111111'
),

'2' => array (
'title' => '222222222222222222',
'cost' => '22222222222222222222',
'pic' => '2.jpg',
'description' => '2222222222222222'
),
etc...
?>

or even better, use a database