MasMaX
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Код:
function utf8_to_htmlentities($source) {
// array used to figure what number to decrement from character order
// value
// according to number of characters used to map unicode to ascii by
// utf-8
$decrement = array();
$decrement[4] = 240;
$decrement[3] = 224;
$decrement[2] = 192;
$decrement[1] = 0;
// the number of bits to shift each charNum by
$shift = array();
$shift[1][0] = 0;
$shift[2][0] = 6;
$shift[2][1] = 0;
$shift[3][0] = 12;
$shift[3][1] = 6;
$shift[3][2] = 0;
$shift[4][0] = 18;
$shift[4][1] = 12;
$shift[4][2] = 6;
$shift[4][3] = 0;
$pos = 0;
$len = strlen($source);
$str = '';
while ($pos < $len) {
$asciiPos = ord(substr($source, $pos, 1));
if (($asciiPos >= 240) && ($asciiPos <= 255)) {
// 4 chars representing one unicode character
$thisLetter = substr($source, $pos, 4);
$pos += 4;
}
elseif (($asciiPos >= 224) && ($asciiPos <= 239)) {
// 3 chars representing one unicode character
$thisLetter = substr($source, $pos, 3);
$pos += 3;
}
else if (($asciiPos >= 192) && ($asciiPos <= 223)) {
// 2 chars representing one unicode character
$thisLetter = substr($source, $pos, 2);
$pos += 2;
}
else {
// 1 char (lower ascii)
$thisLetter = substr($source, $pos, 1);
$pos += 1;
}
// process the string representing the letter to a unicode entity
$thisLen = strlen($thisLetter);
$thisPos = 0;
$decimalCode = 0;
while ($thisPos < $thisLen) {
$thisCharOrd = ord(substr($thisLetter, $thisPos, 1));
if ($thisPos == 0) {
$charNum = intval($thisCharOrd - $decrement[$thisLen]);
$decimalCode += ($charNum << $shift[$thisLen][$thisPos]);
} else {
$charNum = intval($thisCharOrd - 128);
$decimalCode += ($charNum << $shift[$thisLen][$thisPos]);
}
$thisPos++;
}
$encodedLetter = $thisLetter;
if (($thisLen == 1) && ($decimalCode <= 128)) {
$encodedLetter = $thisLetter;
}
else {
$encodedLetter = '&#' . $decimalCode . ';';
}
$str .= $encodedLetter;
}
return $str;
}
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Всего записей: 279 | Зарегистр. 11-05-2005 | Отправлено: 23:08 06-03-2006 | Исправлено: MasMaX, 23:10 06-03-2006 |
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