Asm 05 Instructions

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CS4028 Assignment 05 – PHP
Goetz Botterweck, Lero, University of Limerick
o

1 Invoice Form

o

1.1 Overview
In this assignment your objective is to create a web
form and corresponding action (both in PHP) which
can be used to generate simple invoices sent out
by the fictitious Limerick Laptop, Ltd.




Choose one OS out of: Win10,
Ubuntu
Optional features (can choose
none, one, or both): Touch Display,
SSD

form.php – Web form where an
employee can enter the details of a sale,
i.e., which laptop model was sold with
what options.
form-action.php – PHP Script called
from form.php as a form action (action
attribute of 
) when the submit
button is pressed. Generates an invoice
(including price calculations).

This main functionality is augmented with a very
simple settings page that allows to set the
preferred currency.



settings.php – Minimal form to pick a
currency from EUR, GBP, or SEK.
settings-action.php – Form action
called from settings.php (action attribute
of ). Saves the chosen value in the
PHP session variable
_SESSION["currency"].

1.2 form.php


The form should provide fields for the
following data:
o Name
o Address (text area, 2 lines á 50
characters)
o City
o Country (dropdown), can be
Ireland, UK, Sweden
o (ZIP codes are not supported)
o Choose one model out of: X13,
X15, P5000

asm-05-instructions.docx

1.3 form-action.php


Rules for price calculation

X13

base price 1300 EUR

X15

base price 1500 EUR

P5000

base price 1800 EUR

Win10

0 EUR, i.e., included in
the base price

Ubuntu

- 180 EUR (reduction)

Touch Display

+ 250 EUR

Upgrade to SSD

+ 300 EUR



The output of form-action.php should
look somewhat like this:

1



It should look somewhat like this:

1.6 settings-action.php
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




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
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1.4

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

This script is called from settings.php as a
form action.
It stores the chosen currency value in the
session variable _SESSION["currency"]
and gives some feedback message that it
has done so. It will then provide a link to
jump back to form.php.
The output should look somewhzat like
this:

 Note that navigating to settings.php,
The sender address of Limerick Laptops is
then to settings-action.php, and
fixed.
finally back to form.php will cause the loss
The address under "Bill To" is composed
of data entered into the invoice form so
from the input in the first input fields.
far, unless additional measures are taken
o Note that you might have to
(e.g., saving the data in session variables).
convert carriage returns entered in
We ignore that for this simplified example.
the textarea (using the [Enter] key)
1.7 Augment form.php to include
into line breaks.
currency
The "Options" lines only show up if the
particular options were actually chosen.
 Expand form.php to show the currently
Total shows the total price calculated from
set currency in the footer.
the sum of all chosen options.
 The footer of form.php should also
provide a link to jump to settings.php.
Session variable

That should look somewhat like this (see
Introduce session handling by extending
footer at the bottom of the page):
every PHP script with a few lines.
The session variable
_SESSION["currency"] will have the
value EUR, GBP, or SEK.
Default is EUR.

1.5 settings.php


This form will allow to pick one of EUR,
GBP, or SEK from a list of radio buttons.

asm-05-instructions.docx

2

1.8 Augment form-action.php
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1.9 Other Notes

 You should handle the case that initially no
If the currency is set to a value different
currency is defined.
from EUR, use the following conversion
factors to calculate a converted total.
Besides that, to simplify things, we make the
o 1 EUR = 0.89 GBP
following assumptions:
o 1 EUR = 9.83 SEK
 No input validation (checking for required
Use round() to round the converted
fields etc.)
total.
 No sanitization of input (e.g., escaping
Show the converted total in an additional
special characters)
column after the EUR total.
 We assume form-action.php just generates
If currency is EUR, then omit the additional
a document without changing data. Hence,
column.
it is appropriate to use GET as a HTTP
For instance, for currency SEK and the
method. This avoids annoying confirmation
input in the previous screenshot, the
dialogs by the web browser during testing
output should look somewhat like this:
("Do you really want to resubmit the same
data?").

asm-05-instructions.docx

3
Source Exif Data: 
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.5
Linearized                      : No
Page Count                      : 3
Language                        : en-US
Tagged PDF                      : Yes
Author                          : Goetz Botterweck
Creator                         : Microsoft® Word 2016
Create Date                     : 2017:11:23 20:33:43+00:00
Modify Date                     : 2017:11:23 20:33:43+00:00
Producer                        : Microsoft® Word 2016
EXIF Metadata provided by EXIF.tools

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