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Algorithm::CheckDigits::M11_004.3pm
Langue: en
Version: 2010-07-01 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
NAME
CheckDigits::M11_004 - compute check digits for CPF (BR), TA~tulo Eleitoral (BR)SYNOPSIS
use Algorithm::CheckDigits; $cpf = CheckDigits('cpf'); if ($cpf->is_valid('043.033.407-90')) { # do something } $cn = $cpf->complete('043.033.407-'); # $cn = '043.033.407-90' $cd = $cpf->checkdigit('043.033.407-90'); # $cd = '90' $bn = $cpf->basenumber('043.033.407-90'); # $bn = '043.033.407-'
DESCRIPTION
ALGORITHM
- 1.
- From left to right all digits are multiplied with their position in the sequence.
- 2.
- The sum of all products is computed.
- 3.
- The sum of step 2 is taken modulo 11.
a) If the result is 0 or 1 the checkdigit is 0
b) otherwise the checkdigit is 11 minus the result.
- 4.
- The first checkdigit is appended to the number and step 1 to 3 are repeated.
METHODS
- is_valid($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
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