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Algorithm::CheckDigits::M11_010.3pm
Langue: en
Version: 2009-11-20 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
NAME
CheckDigits::M11_010 - compute check digits AHV number (CH)SYNOPSIS
use Algorithm::CheckDigits; $ahv = CheckDigits('ahv_ch'); if ($ahv->is_valid('123.45.678.113')) { # do something } $cn = $ahv->complete('123.45.678.11'); # $cn = '123.45.678.113' $cd = $ahv->checkdigit('123.45.678.113'); # $cd = '3' $bn = $ahv->basenumber('123.45.678.113'); # $bn = '123.45.678.11';
DESCRIPTION
ALGORITHM
- 1.
- Beginning left every digit is weighted with 5,4,3,2,7,6,5,4,3,2.
- 2.
- The weighted digits are added.
- 3.
- The sum from step 2 is taken modulo 11.
- 4.
- The checkdigit is 11 minus the sum from step 3. Is the difference 10, the number won't be taken. If the difference is 11, the checkdigit is 0.
METHODS
- is_valid($number)
- Returns true only if $number consists solely of numbers and dots and the rightmost digit is a valid check digit according to the algorithm given above.
Returns false otherwise,
- complete($number)
- The check digit for $number is computed and appended the end of $number.
Returns the complete number with check digit or '' if $number does not consist solely of digits and dots.
- basenumber($number)
- Returns the basenumber of $number if $number has a valid check digit.
Return '' otherwise.
- checkdigit($number)
- Returns the check digits of $number if $number has valid check digits.
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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