PHP if the Utf-8 code corresponding to the Chinese character display

That's what I wrote. Unicode code generates UTF-8 corresponding code value

//3字节 1110xxxx 10xxxxxx 10xxxxxx $unicode = '\u611f'; //中文感Unicodefunction unicode_utf8($unicode){    $decval = intval(hexdec($unicode));    $left = dechex( 0xe0 | ($decval >> 12));    $mid  = dechex( 0x80 | (($decval >> 6) & 0x3f));    $right= dechex( 0x80 |  ($decval & 0x3f));    return $left.$mid.$right;}echo $utf8 = unicode_utf8($unicode);echo "\n";

?>

Output: e6849f
The question is how to UTF-8 code e6849f corresponding Chinese characters ' sense ' display??

Reply content:

That's what I wrote. Unicode code generates UTF-8 corresponding code value

//3字节 1110xxxx 10xxxxxx 10xxxxxx $unicode = '\u611f'; //中文感Unicodefunction unicode_utf8($unicode){    $decval = intval(hexdec($unicode));    $left = dechex( 0xe0 | ($decval >> 12));    $mid  = dechex( 0x80 | (($decval >> 6) & 0x3f));    $right= dechex( 0x80 |  ($decval & 0x3f));    return $left.$mid.$right;}echo $utf8 = unicode_utf8($unicode);echo "\n";

?>

Output: e6849f
The question is how to UTF-8 code e6849f corresponding Chinese characters ' sense ' display??

$unicode = '\u611f'; //中文感Unicode// Unicode转换utf8函数function unicode_to_utf8($unicode) {    $utf8_str = '';    $code = intval(hexdec($unicode));    //这里注意转换出来的code一定得是整形，这样才会正确的按位操作    $ord_1 = decbin(0xe0 | ($code >> 12));    $ord_2 = decbin(0x80 | (($code >> 6) & 0x3f));    $ord_3 = decbin(0x80 | ($code & 0x3f));    $utf8_str = chr(bindec($ord_1)) . chr(bindec($ord_2)) . chr(bindec($ord_3));    return $utf8_str;}echo unicode_to_utf8($unicode);?>

