PHP Code: Quersumme

Berechnet die Quersumme einer belibigen Zahl.

<?php

function quersumme($zahl) {
 settype($zahl, "string");
 $res = 0;
 for($i=0; $i<strlen($zahl); $i++) {
  $res = $res + $zahl[$i];
 }
 return $res;
}

?>

Tags: Funktion, PHP, Quersumme

This entry was posted on Dezember 21st, 2010 and is filed under Zahlen und Mathe. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response or Trackback from your own site.