PHP-Lösung

[Eddie]

Hier meine PHP-Lösung, ohne jedes Mal die gesamte Vergleichs-Schleife durchlaufen zu muessen.
Die Schleifenvariante aus dem Original waere uebrigens effektiver, wenn man die Vergleiche entsprechend der relativen Häufigkeit von Zeichen anordnen wuerde.
Eddie

/* encrypts an e-mail address to hide mailto-links from address crawlers
 *
 * $eMail - address to encrypt
 *
 * returns the encrypted address
 */
function getEncodedMailToLink($eMail)
{
 $eMail = strtolower($eMail);

$codes = array('e' => 'e',
      'n' => 'n',
      'i' => 'i',
      's' => 's',
      'r' => 'r',
      'a' => 'a',
      't' => 't',
      'd' => 'd',
      'u' => 'u',
      'h' => 'h',
      'g' => 'g',
      'l' => 'l',
      'c' => 'c',
      'm' => 'm',
      'w' => 'w',
      'o' => 'o',
      'b' => 'b',
      'f' => 'f',
      'z' => 'z',
      'k' => 'k',
      'v' => 'v',
      'p' => 'p',
      'j' => 'j',
      'q' => 'q',
      'x' => 'x',
      'y' => 'y',

'0' => '0',
      '1' => '1',
      '2' => '2',
      '3' => '3',
      '4' => '4',
      '5' => '5',
      '6' => '6',
      '7' => '7',
      '8' => '8',
      '9' => '9',

'&' => '&',
      ' ' => ' ',
      '_' => '_',
      '-' => '-',
      '@' => '@',
      '.' => '.',
    );

$output = '';
 for ($i = 0; $i < strlen($eMail); $i++)
 {

$sign = substr($eMail, $i, 1);
  $code = $codes[$sign];
  if ($code != '')
  {
   $output .= $code;
  }
  else
  {
   $output .= $sign;
  }
 }

return $output;
}