次の形式のデータがあります:U+597D
またはこのようなU+6211
。それらをUTF-8に変換したい(元の文字は好と我)。どうすればできますか?
$utf8string = html_entity_decode(preg_replace("/U\+([0-9A-F]{4})/", "&#x\\1;", $string), ENT_NOQUOTES, 'UTF-8');
おそらく最も簡単なソリューションです。
function utf8($num)
{
if($num<=0x7F) return chr($num);
if($num<=0x7FF) return chr(($num>>6)+192).chr(($num&63)+128);
if($num<=0xFFFF) return chr(($num>>12)+224).chr((($num>>6)&63)+128).chr(($num&63)+128);
if($num<=0x1FFFFF) return chr(($num>>18)+240).chr((($num>>12)&63)+128).chr((($num>>6)&63)+128).chr(($num&63)+128);
return '';
}
function uniord($c)
{
$ord0 = ord($c{0}); if ($ord0>=0 && $ord0<=127) return $ord0;
$ord1 = ord($c{1}); if ($ord0>=192 && $ord0<=223) return ($ord0-192)*64 + ($ord1-128);
$ord2 = ord($c{2}); if ($ord0>=224 && $ord0<=239) return ($ord0-224)*4096 + ($ord1-128)*64 + ($ord2-128);
$ord3 = ord($c{3}); if ($ord0>=240 && $ord0<=247) return ($ord0-240)*262144 + ($ord1-128)*4096 + ($ord2-128)*64 + ($ord3-128);
return false;
}
utf8()およびuniord()は、phpでchr()およびord()関数をミラーリングしようとします。
echo utf8(0x6211)."\n";
echo uniord(utf8(0x6211))."\n";
echo "U+".dechex(uniord(utf8(0x6211)))."\n";
//In your case:
$wo='U+6211';
$hao='U+597D';
echo utf8(hexdec(str_replace("U+","", $wo)))."\n";
echo utf8(hexdec(str_replace("U+","", $hao)))."\n";
出力:
我
25105
U+6211
我
好
polyfill
とord
のマルチバイトバージョンが欠落している場合に、以下を念頭に置いてchr
を作成しました。
関数を定義しますmb_ord
およびmb_chr
まだ存在しない場合のみ。フレームワークまたは将来のバージョンのPHPに存在する場合、ポリフィルは無視されます。
広く使用されているmbstring
拡張を使用して変換を行います。 mbstring
拡張がロードされていない場合、代わりにiconv
拡張を使用します。
また、HTMLエンティティのエンコード/デコードおよびエンコード/デコード用の関数をJSON形式に追加し、これらの関数を使用する方法のデモコードも追加しました。
if (!function_exists('codepoint_encode')) {
function codepoint_encode($str) {
return substr(json_encode($str), 1, -1);
}
}
if (!function_exists('codepoint_decode')) {
function codepoint_decode($str) {
return json_decode(sprintf('"%s"', $str));
}
}
if (!function_exists('mb_internal_encoding')) {
function mb_internal_encoding($encoding = NULL) {
return ($from_encoding === NULL) ? iconv_get_encoding() : iconv_set_encoding($encoding);
}
}
if (!function_exists('mb_convert_encoding')) {
function mb_convert_encoding($str, $to_encoding, $from_encoding = NULL) {
return iconv(($from_encoding === NULL) ? mb_internal_encoding() : $from_encoding, $to_encoding, $str);
}
}
if (!function_exists('mb_chr')) {
function mb_chr($ord, $encoding = 'UTF-8') {
if ($encoding === 'UCS-4BE') {
return pack("N", $ord);
} else {
return mb_convert_encoding(mb_chr($ord, 'UCS-4BE'), $encoding, 'UCS-4BE');
}
}
}
if (!function_exists('mb_ord')) {
function mb_ord($char, $encoding = 'UTF-8') {
if ($encoding === 'UCS-4BE') {
list(, $ord) = (strlen($char) === 4) ? @unpack('N', $char) : @unpack('n', $char);
return $ord;
} else {
return mb_ord(mb_convert_encoding($char, 'UCS-4BE', $encoding), 'UCS-4BE');
}
}
}
if (!function_exists('mb_htmlentities')) {
function mb_htmlentities($string, $hex = true, $encoding = 'UTF-8') {
return preg_replace_callback('/[\x{80}-\x{10FFFF}]/u', function ($match) use ($hex) {
return sprintf($hex ? '&#x%X;' : '&#%d;', mb_ord($match[0]));
}, $string);
}
}
if (!function_exists('mb_html_entity_decode')) {
function mb_html_entity_decode($string, $flags = null, $encoding = 'UTF-8') {
return html_entity_decode($string, ($flags === NULL) ? ENT_COMPAT | ENT_HTML401 : $flags, $encoding);
}
}
echo "\nGet string from numeric DEC value\n";
var_dump(mb_chr(25105));
var_dump(mb_chr(22909));
echo "\nGet string from numeric HEX value\n";
var_dump(mb_chr(0x6211));
var_dump(mb_chr(0x597D));
echo "\nGet numeric value of character as DEC int\n";
var_dump(mb_ord('我'));
var_dump(mb_ord('好'));
echo "\nGet numeric value of character as HEX string\n";
var_dump(dechex(mb_ord('我')));
var_dump(dechex(mb_ord('好')));
echo "\nEncode / decode to DEC based HTML entities\n";
var_dump(mb_htmlentities('我好', false));
var_dump(mb_html_entity_decode('我好'));
echo "\nEncode / decode to HEX based HTML entities\n";
var_dump(mb_htmlentities('我好'));
var_dump(mb_html_entity_decode('我好'));
echo "\nUse JSON encoding / decoding\n";
var_dump(codepoint_encode("我好"));
var_dump(codepoint_decode('\u6211\u597d'));
Get string from numeric DEC value
string(3) "我"
string(3) "好"
Get string from numeric HEX value
string(3) "我"
string(3) "好"
Get numeric value of character as DEC string
int(25105)
int(22909)
Get numeric value of character as HEX string
string(4) "6211"
string(4) "597d"
Encode / decode to DEC based HTML entities
string(16) "我好"
string(6) "我好"
Encode / decode to HEX based HTML entities
string(16) "我好"
string(6) "我好"
Use JSON encoding / decoding
string(12) "\u6211\u597d"
string(6) "我好"
mb_convert_encoding(
preg_replace("/U\+([0-9A-F]*)/"
,"&#x\\1;"
,'U+597DU+6211'
)
,"UTF-8"
,"HTML-ENTITIES"
);
うまく動作します。
<?php
function chr_utf8($n,$f='C*'){
return $n<(1<<7)?chr($n):($n<1<<11?pack($f,192|$n>>6,1<<7|191&$n):
($n<(1<<16)?pack($f,224|$n>>12,1<<7|63&$n>>6,1<<7|63&$n):
($n<(1<<20|1<<16)?pack($f,240|$n>>18,1<<7|63&$n>>12,1<<7|63&$n>>6,1<<7|63&$n):'')));
}
$your_input='U+597D';
echo (chr_utf8(hexdec(ltrim($your_input,'U+'))));
// Output 好
コールバック関数を使用する場合は、試すことができます:
<?php
// Note: function chr_utf8 shown above is required
$your_input='U+597DU+6211';
$result=preg_replace_callback('#U\+([a-f0-9]+)#i',function($a){return chr_utf8(hexdec($a[1]));},$your_input);
echo $result;
// Output 好我
チェックイン https://eval.in/748187
これはうまくいきました。 「レターu00e1 u00e9など」という文字列がある場合「Lettersáé」に置き換えます。
function unicode2html($str){
// Set the locale to something that's UTF-8 capable
setlocale(LC_ALL, 'en_US.UTF-8');
// Convert the codepoints to entities
$str = preg_replace("/u([0-9a-fA-F]{4})/", "&#x\\1;", $str);
// Convert the entities to a UTF-8 string
return iconv("UTF-8", "ISO-8859-1//TRANSLIT", $str);
}
私はwysiwigエディターを使用していたので、htmlに影響を与えずに特定の文字をフィルターする必要がありましたが、Wordからコピーペーストするとコンテンツにニースのレンダリング不能文字が追加されます。
私のソリューションは、簡単な置換リストに要約されます。
class ReplaceIllegal {
public static $find = array ( 0 => '\x0', 1 => '\x1', 2 => '\x2', 3 => '\x3', 4 => '\x4', 5 => '\x5', 6 => '\x6', 7 => '\x7', 8 => '\x8', 9 => '\x9', 10 => '\xA', 11 => '\xB', 12 => '\xC', 13 => '\xD', 14 => '\xE', 15 => '\xF', 16 => '\x10', 17 => '\x11', 18 => '\x12', 19 => '\x13', 20 => '\x14', 21 => '\x15', 22 => '\x16', 23 => '\x17', 24 => '\x18', 25 => '\x19', 26 => '\x1A', 27 => '\x1B', 28 => '\x1C', 29 => '\x1D', 30 => '\x1E', 31 => '\x80', 32 => '\x81', 33 => '\x82', 34 => '\x83', 35 => '\x84', 36 => '\x85', 37 => '\x86', 38 => '\x87', 39 => '\x88', 40 => '\x89', 41 => '\x8A', 42 => '\x8B', 43 => '\x8C', 44 => '\x8D', 45 => '\x8E', 46 => '\x8F', 47 => '\x90', 48 => '\x91', 49 => '\x92', 50 => '\x93', 51 => '\x94', 52 => '\x95', 53 => '\x96', 54 => '\x97', 55 => '\x98', 56 => '\x99', 57 => '\x9A', 58 => '\x9B', 59 => '\x9C', 60 => '\x9D', 61 => '\x9E', 62 => '\x9F', 63 => '\xA0', 64 => '\xA1', 65 => '\xA2', 66 => '\xA3', 67 => '\xA4', 68 => '\xA5', 69 => '\xA6', 70 => '\xA7', 71 => '\xA8', 72 => '\xA9', 73 => '\xAA', 74 => '\xAB', 75 => '\xAC', 76 => '\xAD', 77 => '\xAE', 78 => '\xAF', 79 => '\xB0', 80 => '\xB1', 81 => '\xB2', 82 => '\xB3', 83 => '\xB4', 84 => '\xB5', 85 => '\xB6', 86 => '\xB7', 87 => '\xB8', 88 => '\xB9', 89 => '\xBA', 90 => '\xBB', 91 => '\xBC', 92 => '\xBD', 93 => '\xBE', 94 => '\xBF', 95 => '\xC0', 96 => '\xC1', 97 => '\xC2', 98 => '\xC3', 99 => '\xC4', 100 => '\xC5', 101 => '\xC6', 102 => '\xC7', 103 => '\xC8', 104 => '\xC9', 105 => '\xCA', 106 => '\xCB', 107 => '\xCC', 108 => '\xCD', 109 => '\xCE', 110 => '\xCF', 111 => '\xD0', 112 => '\xD1', 113 => '\xD2', 114 => '\xD3', 115 => '\xD4', 116 => '\xD5', 117 => '\xD6', 118 => '\xD7', 119 => '\xD8', 120 => '\xD9', 121 => '\xDA', 122 => '\xDB', 123 => '\xDC', 124 => '\xDD', 125 => '\xDE', 126 => '\xDF', 127 => '\xE0', 128 => '\xE1', 129 => '\xE2', 130 => '\xE3', 131 => '\xE4', 132 => '\xE5', 133 => '\xE6', 134 => '\xE7', 135 => '\xE8', 136 => '\xE9', 137 => '\xEA', 138 => '\xEB', 139 => '\xEC', 140 => '\xED', 141 => '\xEE', 142 => '\xEF', 143 => '\xF0', 144 => '\xF1', 145 => '\xF2', 146 => '\xF3', 147 => '\xF4', 148 => '\xF5', 149 => '\xF6', 150 => '\xF7', 151 => '\xF8', 152 => '\xF9', 153 => '\xFA', 154 => '\xFB', 155 => '\xFC', 156 => '\xFD', 157 => '\xFE', );
private static $replace = array ( 0 => '�', 1 => '', 2 => '', 3 => '', 4 => '', 5 => '', 6 => '', 7 => '', 8 => '', 9 => '	', 10 => ' ', 11 => '', 12 => '', 13 => ' ', 14 => '', 15 => '', 16 => '', 17 => '', 18 => '', 19 => '', 20 => '', 21 => '', 22 => '', 23 => '', 24 => '', 25 => '', 26 => '', 27 => '', 28 => '', 29 => '', 30 => '', 31 => '€', 32 => '', 33 => '‚', 34 => 'ƒ', 35 => '„', 36 => '…', 37 => '†', 38 => '‡', 39 => 'ˆ', 40 => '‰', 41 => 'Š', 42 => '‹', 43 => 'Œ', 44 => '', 45 => 'Ž', 46 => '', 47 => '', 48 => '‘', 49 => '’', 50 => '“', 51 => '”', 52 => '•', 53 => '–', 54 => '—', 55 => '˜', 56 => '™', 57 => 'š', 58 => '›', 59 => 'œ', 60 => '', 61 => 'ž', 62 => 'Ÿ', 63 => ' ', 64 => '¡', 65 => '¢', 66 => '£', 67 => '¤', 68 => '¥', 69 => '¦', 70 => '§', 71 => '¨', 72 => '©', 73 => 'ª', 74 => '«', 75 => '¬', 76 => '­', 77 => '®', 78 => '¯', 79 => '°', 80 => '±', 81 => '²', 82 => '³', 83 => '´', 84 => 'µ', 85 => '¶', 86 => '·', 87 => '¸', 88 => '¹', 89 => 'º', 90 => '»', 91 => '¼', 92 => '½', 93 => '¾', 94 => '¿', 95 => 'À', 96 => 'Á', 97 => 'Â', 98 => 'Ã', 99 => 'Ä', 100 => 'Å', 101 => 'Æ', 102 => 'Ç', 103 => 'È', 104 => 'É', 105 => 'Ê', 106 => 'Ë', 107 => 'Ì', 108 => 'Í', 109 => 'Î', 110 => 'Ï', 111 => 'Ð', 112 => 'Ñ', 113 => 'Ò', 114 => 'Ó', 115 => 'Ô', 116 => 'Õ', 117 => 'Ö', 118 => '×', 119 => 'Ø', 120 => 'Ù', 121 => 'Ú', 122 => 'Û', 123 => 'Ü', 124 => 'Ý', 125 => 'Þ', 126 => 'ß', 127 => 'à', 128 => 'á', 129 => 'â', 130 => 'ã', 131 => 'ä', 132 => 'å', 133 => 'æ', 134 => 'ç', 135 => 'è', 136 => 'é', 137 => 'ê', 138 => 'ë', 139 => 'ì', 140 => 'í', 141 => 'î', 142 => 'ï', 143 => 'ð', 144 => 'ñ', 145 => 'ò', 146 => 'ó', 147 => 'ô', 148 => 'õ', 149 => 'ö', 150 => '÷', 151 => 'ø', 152 => 'ù', 153 => 'ú', 154 => 'û', 155 => 'ü', 156 => 'ý', 157 => 'þ', );
/*
* replace illegal characters for escaped html character but don't touch anything else.
*/
public static function getSaveValue($value) {
return str_replace(self::$find, self::$replace, $value);
}
public static function makeIllegal($find,$replace) {
self::$find[] = $find;
self::$replace[] = $replace;
}
}