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7.0

PHP CURRENCY CALCULATIONS

Asked by socross in PHP Scripting Language, MySQL Server

Tags: php, currency, float, vat

Hi

I have a database table which stores items for an invoice, there are 4 cols (where item_net is a float (4,2) and stores the amount before tax and item_vat is a true or false (1 or 0) which identifys whether vat is required on that item.

invoice_id     |    item_details     |        item_net       |      item_vat


When i pull out all items related to an invoice (invoice_id) i need to do some calculations to pull out three results.

1. total net ($net)
2. total vat ($vat)
3 Total ($net +$vat)

So i need to take each row of the $item array that i create when i pull all the values out of the database and then for each row calculate the vat if required and then add to the running total.

I have tried creating some empty vars for the net and the vat and then adding to them but i cant seem to get it working, could this be something to do with the float format in the db.

Any suggestions, example code would be much appriciated, i can post my current attempt, but i would rather see how a pro would approach it first.

Many thanks

--s--
[+][-]10/09/07 08:33 AM, ID: 20041815Expert Comment

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[+][-]10/09/07 08:43 AM, ID: 20041918Author Comment

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[+][-]10/09/07 09:36 AM, ID: 20042352Accepted Solution

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About this solution

Zones: PHP Scripting Language, MySQL Server
Tags: php, currency, float, vat
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Solution Provided By: socross
Participating Experts: 3
Solution Grade: B
 
[+][-]10/09/07 02:48 PM, ID: 20044867Expert Comment

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[+][-]10/10/07 11:31 AM, ID: 20051049Expert Comment

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