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Algorithm::CheckDigits::MXX_004.3pm
Langue: en
Version: 2008-05-17 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
CheckDigits::MXX_004 - compute check digits for VAT RN (AT)SYNOPSIS
use Algorithm::CheckDigits; $vat = CheckDigits('ustid_at'); if ($vat->is_valid('U13585627')) { # do something } $cn = $vat->complete('U1358562'); # $cn = 'U13585627' $cd = $vat->checkdigit('U13585627'); # $cd = '7' $bn = $vat->basenumber('U13585627'); # $bn = 'U1358562'
DESCRIPTION
ALGORITHM
- 1.
- Beginning right all numbers before the check digit are weighted alternatively 1 and 2.
- 2.
- The total of the digits of all products is computed and then subtracted from 96.
- 3.
- The check digit is the sum of step 3 taken modulo 10.
METHODS
- is_valid($number)
- Returns true only if $number consists solely of numbers and the last digit is a valid check digit according to the algorithm given above.
Returns false otherwise,
- complete($number)
- The check digit for $number is computed and concatenated to the end of $number.
Returns the complete number with check digit or '' if $number does not consist solely of digits and spaces.
- basenumber($number)
- Returns the basenumber of $number if $number has a valid check digit.
Return '' otherwise.
- checkdigit($number)
- Returns the checkdigit of $number if $number has a valid check digit.
Return '' otherwise.
EXPORT
None by default.AUTHOR
Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de.Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre