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16 years ago
Squirrelmail contains a nice function in the sources to convert unicode to entities:



<?php

function charset_decode_utf_8 ($string) {

      /* Only do the slow convert if there are 8-bit characters */

    /* avoid using 0xA0 (\240) in ereg ranges. RH73 does not like that */

    if (! ereg("[\200-\237]", $string) and ! ereg("[\241-\377]", $string))

        return $string;



    // decode three byte unicode characters

    $string = preg_replace("/([\340-\357])([\200-\277])([\200-\277])/e",        \

    "'&#'.((ord('\\1')-224)*4096 + (ord('\\2')-128)*64 + (ord('\\3')-128)).';'",    \

    $string);



    // decode two byte unicode characters

    $string = preg_replace("/([\300-\337])([\200-\277])/e", \

    "'&#'.((ord('\\1')-192)*64+(ord('\\2')-128)).';'", \

    $string);



    return $string;

}

?>
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