<!-- Collection of code snippets by Arne VajhÃ¸j -->
<!-- posted to eksperten.dk, usenet and other places (2002-now) -->
<?php
$aRepl = array(
    " " => "&nbsp;",
    "¡" => "&iexcl;",
    "¢" => "&cent;",
    "£" => "&pound;",
    "¨" => "&curren;",
    "¥" => "&yen;",
    "|" => "&brvbar;",
    "§" => "&sect;",
    " " => "&uml;",
    "©" => "&copy;",
    "ª" => "&ordf;",
    "«" => "&laquo;",
    " " => "&not;",
    "-" => "&shy;",
    "r" => "&reg;",
    " " => "&macr;",
    "°" => "&deg;",
    "±" => "&plusmn;",
    "²" => "&sup2;",
    "³" => "&sup3;",
    " " => "&acute;",
    "µ" => "&micro;",
    "¶" => "&para;",
    "·" => "&middot;",
    " " => "&cedil;",
    "¹" => "&sup1;",
    "º" => "&ordm;",
    "»" => "&raquo;",
    "¼" => "&frac14;",
    "½" => "&frac12;",
    " " => "&frac34;",
    "¿" => "&iquest;",
    "À" => "&Agrave;",
    "Á" => "&Aacute;",
    "Â" => "&Acirc;",
    "Ã" => "&Atilde;",
    "Ä" => "&Auml;",
    "Å" => "&Aring;",
    "Æ" => "&AElig;",
    "Ç" => "&Ccedil;",
    "È" => "&Egrave;",
    "É" => "&Eacute;",
    "Ê" => "&Ecirc;",
    "Ë" => "&Euml;",
    "Ì" => "&Igrave;",
    "Í" => "&Iacute;",
    "Î" => "&Icirc;",
    "Ï" => "&Iuml;",
    "D" => "&ETH;",
    "Ñ" => "&Ntilde;",
    "Ò" => "&Ograve;",
    "Ó" => "&Oacute;",
    "Ô" => "&Ocirc;",
    "Õ" => "&Otilde;",
    "Ö" => "&Ouml;",
    "*" => "&times;",
    "Ø" => "&Oslash;",
    "Ù" => "&Ugrave;",
    "Ú" => "&Uacute;",
    "Û" => "&Ucirc;",
    "Ü" => "&Uuml;",
    "Y" => "&Yacute;",
    "T" => "&THORN;",
    "ß" => "&szlig;",
    "à" => "&agrave;",
    "á" => "&aacute;",
    "â" => "&acirc;",
    "ã" => "&atilde;",
    "ä" => "&auml;",
    "å" => "&aring;",
    "æ" => "&aelig;",
    "ç" => "&ccedil;",
    "è" => "&egrave;",
    "é" => "&eacute;",
    "ê" => "&ecirc;",
    "ë" => "&euml;",
    "ì" => "&igrave;",
    "í" => "&iacute;",
    "î" => "&icirc;",
    "ï" => "&iuml;",
    "d" => "&eth;",
    "ñ" => "&ntilde;",
    "ò" => "&ograve;",
    "ó" => "&oacute;",
    "ô" => "&ocirc;",
    "õ" => "&otilde;",
    "ö" => "&ouml;",
    "/" => "&divide;",
    "ø" => "&oslash;",
    "ù" => "&ugrave;",
    "ú" => "&uacute;",
    "û" => "&ucirc;",
    "ü" => "&uuml;",
    "y" => "&yacute;",
    "t" => "&thorn;",
    "ý" => "&yuml;",
    "<" => "&lt;",
    ">" => "&gt;",
    "&" => "&amp;",
    "\n" => "<br>",
    "\"" => "&quot;",
    "'" => "&#39;"
);
echo strtr('æøå"', $aRepl) . "\r\n";
echo strtr('æøå\'', $aRepl) . "\r\n";
echo htmlspecialchars ('æøå"', ENT_QUOTES) . "\r\n";
echo htmlspecialchars ('æøå\'', ENT_QUOTES) . "\r\n";
echo htmlentities ('æøå"', ENT_QUOTES) . "\r\n";
echo htmlentities ('æøå\'', ENT_QUOTES) . "\r\n";
?>