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845天前//gb2312编码转utf8编码 |
function gb2utf8($gb)/* Program writen by sadly modified by agun */{ |
if (!trim($gb)) |
return $gb; |
$filename = "gb2312.txt"; |
$tmp = file($filename); |
$codetable = array(); |
while (list($key, $value) = each($tmp)) |
$codetable[hexdec(substr($value, 0, 6))] = substr($value, 7, 6); |
|
$ret = ""; |
$utf8 = ""; |
while ($gb) { |
if (ord(substr($gb, 0, 1)) > 127) { |
$this = substr($gb, 0, 2); |
$gb = substr($gb, 2, strlen($gb)); |
$utf8 = u2utf8(hexdec($codetable[hexdec(bin2hex($this)) - 0x8080])); |
for ($i = 0; $i < strlen($utf8); $i += 3) |
$ret. = chr(substr($utf8, $i, 3)); |
} else { |
$ret. = substr($gb, 0, 1); |
$gb = substr($gb, 1, strlen($gb)); |
} |
} |
return $ret; |
} |
//unicode编码转utf8编码 |
function u2utf8($c) { |
for ($i = 0; $i < count($c); $i++) |
$str = ""; |
if ($c < 0x80) { |
$str. = $c; |
} else if ($c < 0x800) { |
$str. = (0xC0 | $c >> 6); |
$str. = (0x80 | $c & 0x3F); |
} else if ($c < 0x10000) { |
$str. = (0xE0 | $c >> 12); |
$str. = (0x80 | $c >> 6 & 0x3F); |
$str. = (0x80 | $c & 0x3F); |
} else if ($c < 0x200000) { |
$str. = (0xF0 | $c >> 18); |
$str. = (0x80 | $c >> 12 & 0x3F); |
$str. = (0x80 | $c >> 6 & 0x3F); |
$str. = (0x80 | $c & 0x3F); |
} |
return $str; |
} |
