有什么方法可以将 html 流中的 unicode Symbol 字体转换为其等效的 utf8 实体？
即。 0xf067 ( 作为 unicode Symbol html 实体) 到希腊小写字母 gamma (U+03B3 aka γ in standard utf8)
【问题讨论】：
标签： php character-encoding fonts
UTF-8 是 Unicode，你不需要改变任何东西，你已经有了 Unicode。
【讨论】：
strtr 在这里有帮助。但无论如何，您首先需要定义要更改的字节，无论如何您都需要这样做。由于该链接不是 PHP，因此最好将其设置为某种 PHP 类型，例如数组。应该有助于更接近解决方案（并允许其他人也积极参与该问题）。
最后我设法使用 Symbol to unicode map at 做到了
http://www.stat.auckland.ac.nz/~paul/R/CM/AdobeSym.html
然后使用iconv从unicode转换为utf8（作为unicode utf8）
function symbol_sanitize_string($string) {
return preg_replace_callback('/([\x{f020}-\x{f0fe}]{1})/u',
'symbol_unicode_to_utf8_entity', $string);
}
function symbol_unicode_to_utf8_entity($wchar) {
static $_SYMBOL_FONT_MAP = array (
15696032 => 32,
15696033 => 33,
15696034 => 8704,
15696035 => 35,
15696036 => 8707,
15696037 => 37,
15696038 => 38,
15696039 => 8715,
15696040 => 40,
15696041 => 41,
15696042 => 8727,
15696043 => 43,
15696044 => 44,
15696045 => 8722,
15696046 => 46,
15696047 => 47,
15696048 => 48,
15696049 => 49,
15696050 => 50,
15696051 => 51,
15696052 => 52,
15696053 => 53,
15696054 => 54,
15696055 => 55,
15696056 => 56,
15696057 => 57,
15696058 => 58,
15696059 => 59,
15696060 => 60,
15696061 => 61,
15696062 => 62,
15696063 => 63,
15696256 => 8773,
15696257 => 913,
15696258 => 914,
15696259 => 935,
15696260 => 916,
15696261 => 917,
15696262 => 934,
15696263 => 915,
15696264 => 919,
15696265 => 921,
15696266 => 977,
15696267 => 922,
15696268 => 923,
15696269 => 924,
15696270 => 925,
15696271 => 927,
15696272 => 928,
15696273 => 920,
15696274 => 929,
15696275 => 931,
15696276 => 932,
15696277 => 933,
15696278 => 962,
15696279 => 937,
15696280 => 926,
15696281 => 936,
15696282 => 918,
15696283 => 91,
15696284 => 8756,
15696285 => 93,
15696286 => 8869,
15696287 => 95,
15696288 => 63717,
15696289 => 945,
15696290 => 946,
15696291 => 967,
15696292 => 948,
15696293 => 949,
15696294 => 966,
15696295 => 947,
15696296 => 951,
15696297 => 953,
15696298 => 981,
15696299 => 954,
15696300 => 955,
15696301 => 956,
15696302 => 957,
15696303 => 959,
15696304 => 960,
15696305 => 952,
15696306 => 961,
15696307 => 963,
15696308 => 964,
15696309 => 965,
15696310 => 982,
15696311 => 969,
15696312 => 958,
15696313 => 968,
15696314 => 950,
15696315 => 123,
15696316 => 124,
15696317 => 125,
15696318 => 8764,
15696544 => 8364,
15696545 => 978,
15696546 => 8242,
15696547 => 8804,
15696548 => 8260,
15696549 => 8734,
15696550 => 402,
15696551 => 9827,
15696552 => 9830,
15696553 => 9829,
15696554 => 9824,
15696555 => 8596,
15696556 => 8592,
15696557 => 8593,
15696558 => 8594,
15696559 => 8595,
15696560 => 176,
15696561 => 177,
15696562 => 8243,
15696563 => 8805,
15696564 => 215,
15696565 => 8733,
15696566 => 8706,
15696567 => 8226,
15696568 => 247,
15696569 => 8800,
15696570 => 8801,
15696571 => 8776,
15696572 => 8230,
15696573 => 63718,
15696574 => 63719,
15696575 => 8629,
15696768 => 8501,
15696769 => 8465,
15696770 => 8476,
15696771 => 8472,
15696772 => 8855,
15696773 => 8853,
15696774 => 8709,
15696775 => 8745,
15696776 => 8746,
15696777 => 8835,
15696778 => 8839,
15696779 => 8836,
15696780 => 8834,
15696781 => 8838,
15696782 => 8712,
15696783 => 8713,
15696784 => 8736,
15696785 => 8711,
15696786 => 63194,
15696787 => 63193,
15696788 => 63195,
15696789 => 8719,
15696790 => 8730,
15696791 => 8901,
15696792 => 172,
15696793 => 8743,
15696794 => 8744,
15696795 => 8660,
15696796 => 8656,
15696797 => 8657,
15696798 => 8658,
15696799 => 8659,
15696800 => 9674,
15696801 => 9001,
15696802 => 63720,
15696803 => 63721,
15696804 => 63722,
15696805 => 8721,
15696806 => 63723,
15696807 => 63724,
15696808 => 63725,
15696809 => 63726,
15696810 => 63727,
15696811 => 63728,
15696812 => 63729,
15696813 => 63730,
15696814 => 63731,
15696815 => 63732,
15696817 => 9002,
15696818 => 8747,
15696819 => 8992,
15696820 => 63733,
15696821 => 8993,
15696822 => 63734,
15696823 => 63735,
15696824 => 63736,
15696825 => 63737,
15696826 => 63738,
15696827 => 63739,
15696828 => 63740,
15696829 => 63741,
15696830 => 63742,
);
$conv = hexdec(bin2hex($wchar[1]));
$utf8 = $_SYMBOL_FONT_MAP[$conv];
return $utf8 ? '&#'. $utf8 .';' : $wchar[1];
}
【讨论】：
扩展gplotino的答案，我添加了一些不存在的字符，提取自AdobeSymb
function symbol_unicode_to_utf8_entity($wchar) {
static $_SYMBOL_FONT_MAP = array (
15696032 => "#32",
15696033 => "#33",
15696034 => "#8704",
15696035 => "#35",
15696036 => "#8707",
15696037 => "#37",
15696038 => "#38",
15696039 => "#8715",
15696040 => "#40",
15696041 => "#41",
15696042 => "#8727",
15696043 => "#43",
15696044 => "#44",
15696045 => "#8722",
15696046 => "#46",
15696047 => "#47",
15696048 => "#48",
15696049 => "#49",
15696050 => "#50",
15696051 => "#51",
15696052 => "#52",
15696053 => "#53",
15696054 => "#54",
15696055 => "#55",
15696056 => "#56",
15696057 => "#57",
15696058 => "#58",
15696059 => "#59",
15696060 => "#60",
15696061 => "#61",
15696062 => "#62",
15696063 => "#63",
15696256 => "#8773",
15696257 => "#913",
15696258 => "#914",
15696259 => "#935",
15696260 => "#916",
15696261 => "#917",
15696262 => "#934",
15696263 => "#915",
15696264 => "#919",
15696265 => "#921",
15696266 => "#977",
15696267 => "#922",
15696268 => "#923",
15696269 => "#924",
15696270 => "#925",
15696271 => "#927",
15696272 => "#928",
15696273 => "#920",
15696274 => "#929",
15696275 => "#931",
15696276 => "#932",
15696277 => "#933",
15696278 => "#962",
15696279 => "#937",
15696280 => "#926",
15696281 => "#936",
15696282 => "#918",
15696283 => "#91",
15696284 => "#8756",
15696285 => "#93",
15696286 => "#8869",
15696287 => "#95",
15696288 => "#63717",
15696289 => "#945",
15696290 => "#946",
15696291 => "#967",
15696292 => "#948",
15696293 => "#949",
15696294 => "#966",
15696295 => "#947",
15696296 => "#951",
15696297 => "#953",
15696298 => "#981",
15696299 => "#954",
15696300 => "#955",
15696301 => "#956",
15696302 => "#957",
15696303 => "#959",
15696304 => "#960",
15696305 => "#952",
15696306 => "#961",
15696307 => "#963",
15696308 => "#964",
15696309 => "#965",
15696310 => "#982",
15696311 => "#969",
15696312 => "#958",
15696313 => "#968",
15696314 => "#950",
15696315 => "#123",
15696316 => "#124",
15696317 => "#125",
15696318 => "#8764",
15696544 => "#8364",
15696545 => "#978",
15696546 => "#8242",
15696547 => "#8804",
15696548 => "#8260",
15696549 => "#8734",
15696550 => "#402",
15696551 => "#9827",
15696552 => "#9830",
15696553 => "#9829",
15696554 => "#9824",
15696555 => "#8596",
15696556 => "#8592",
15696557 => "#8593",
15696558 => "#8594",
15696559 => "#8595",
15696560 => "#176",
15696561 => "#177",
15696562 => "#8243",
15696563 => "#8805",
15696564 => "#215",
15696565 => "#8733",
15696566 => "#8706",
15696567 => "#8226",
15696568 => "#247",
15696569 => "#8800",
15696570 => "#8801",
15696571 => "#8776",
15696572 => "#8230",
15696573 => "#63718",
15696574 => "#63719",
15696575 => "#8629",
15696768 => "#8501",
15696769 => "#8465",
15696770 => "#8476",
15696771 => "#8472",
15696772 => "#8855",
15696773 => "#8853",
15696774 => "#8709",
15696775 => "#8745",
15696776 => "#8746",
15696777 => "#8835",
15696778 => "#8839",
15696779 => "#8836",
15696780 => "#8834",
15696781 => "#8838",
15696782 => "#8712",
15696783 => "#8713",
15696784 => "#8736",
15696785 => "#8711",
15696786 => "#63194",
15696787 => "#63193",
15696788 => "#63195",
15696789 => "#8719",
15696790 => "#8730",
15696791 => "#8901",
15696792 => "#172",
15696793 => "#8743",
15696794 => "#8744",
15696795 => "#8660",
15696796 => "#8656",
15696797 => "#8657",
15696798 => "#8658",
15696799 => "#8659",
15696800 => "#9674",
15696801 => "#9001",
15696802 => "#63720",
15696803 => "#63721",
15696804 => "#63722",
15696805 => "#8721",
15696806 => "#63723",
15696807 => "#63724",
15696808 => "#63725",
15696809 => "#63726",
15696810 => "#63727",
15696811 => "#63728",
15696812 => "#63729",
15696813 => "#63730",
15696814 => "#63731",
15696815 => "#63732",
15696817 => "#9002",
15696818 => "#8747",
15696819 => "#8992",
15696820 => "#63733",
15696821 => "#8993",
15696822 => "#63734",
15696823 => "#63735",
15696824 => "#63736",
15696825 => "#63737",
15696826 => "#63738",
15696827 => "#63739",
15696828 => "#63740",
15696829 => "#63741",
15696830 => "#63742",
36 => "exist",
38 => "amp",
39 => "ni",
42 => "lowast",
45 => "minus",
60 => "lt",
62 => "gt",
64 => "cong",
65 => "Alpha",
66 => "Beta",
67 => "Chi",
68 => "Delta",
69 => "Epsilon",
70 => "Phi",
71 => "Gamma",
72 => "Eta",
73 => "Iota",
74 => "thetasym",
75 => "Kappa",
76 => "Lambda",
77 => "Mu",
78 => "Nu",
79 => "Omicron",
80 => "Pi",
81 => "Theta",
82 => "Rho",
83 => "Sigma",
84 => "Tau",
85 => "Upsilon",
86 => "sigmaf",
87 => "Omega",
88 => "Xi",
89 => "Psi",
90 => "Zeta",
92 => "there4",
94 => "perp",
97 => "alpha",
98 => "beta",
99 => "chi",
100 => "delta",
101 => "epsilon",
102 => "phi",
103 => "gamma",
104 => "eta",
105 => "iota",
106 => "ϕ",
107 => "kappa",
108 => "lambda",
109 => "mu",
110 => "nu",
111 => "omicron",
112 => "pi",
113 => "theta",
114 => "rho",
115 => "sigma",
116 => "tau",
117 => "upsilon",
118 => "piv",
119 => "omega",
120 => "xi",
121 => "psi",
122 => "zeta",
126 => "sim",
160 => "euro",
161 => "upsih",
162 => "prime",
163 => "le",
164 => "frasl",
165 => "infin",
166 => "fnof",
167 => "clubs",
168 => "diams",
169 => "hearts",
170 => "spades",
171 => "harr",
172 => "larr",
173 => "uarr",
174 => "rarr",
175 => "darr",
176 => "deg",
177 => "plusmn",
178 => "Prime",
179 => "ge",
180 => "times",
181 => "prop",
182 => "part",
183 => "bull",
184 => "divide",
185 => "ne",
186 => "equiv",
187 => "asymp",
188 => "hellip",
191 => "crarr",
192 => "alefsym",
193 => "image",
194 => "real",
195 => "weierp",
196 => "otimes",
197 => "oplus",
198 => "empty",
199 => "cap",
200 => "cup",
201 => "sup",
202 => "supe",
203 => "nsub",
204 => "sub",
205 => "sube",
206 => "isin",
207 => "notin",
208 => "ang",
209 => "nabla",
210 => "reg",
211 => "copy",
212 => "trade",
213 => "prod",
214 => "radic",
215 => "sdot",
216 => "not",
217 => "and",
218 => "or",
219 => "hArr",
220 => "lArr",
221 => "uArr",
222 => "rArr",
223 => "dArr",
224 => "loz",
225 => "lang",
229 => "sum",
241 => "rang",
242 => "int",
);
$conv = hexdec(bin2hex($wchar));
$utf8 = $_SYMBOL_FONT_MAP[$conv];
return $utf8 ? '&'. $utf8 .';' : $wchar;
}
// Usage.
// Assume letter from format like:
// <span style="font-family:Symbol;">m</span>
// Intermediate processing: "m" => "μ"
$intermediate = symbol_unicode_to_utf8_entity('m');
// Output UTF character "μ"
echo html_entity_decode($intermediate, ENT_COMPAT | ENT_HTML401, 'UTF-8');
编辑：以前的脚本没有转换某些字符，如 )。所以我编写了一个新脚本，将非 unicode 符号字符的十进制值直接解析为 unicode（从here 提取的表：
function symbol_sanitize_string($string) {
//important if you're use DOM to load html
$string = preg_replace( '/charset=iso-8859-1/', 'charset=utf-8', $string );
//replace font symbols
$string = preg_replace_callback('/&#(61\d+?);/i', 'symbol_alone2utf8', $string);
return $string;
}
function symbol_alone2utf8( $match ){
return symbol2utf8( $match[1] );
}
function symbol2utf8( $decimal ) {
$_Symbol = array(
61472 => '020',
61473 => '021',
61474 => '022',
61475 => '023',
61476 => '024',
61477 => '025',
61478 => '026',
61479 => '027',
61480 => '028',
61481 => '029',
61482 => '02A',
61483 => '02B',
61484 => '02C',
61485 => '02D',
61486 => '02E',
61487 => '02F',
61488 => '030',
61489 => '031',
61490 => '032',
61491 => '033',
61492 => '034',
61493 => '035',
61494 => '036',
61495 => '037',
61496 => '038',
61497 => '039',
61498 => '03A',
61499 => '03B',
61500 => '03C',
61501 => '03D',
61502 => '03E',
61503 => '03F',
61504 => '040',
61505 => '041',
61506 => '042',
61507 => '043',
61508 => '044',
61509 => '045',
61510 => '046',
61511 => '047',
61512 => '048',
61513 => '049',
61514 => '04A',
61515 => '04B',
61516 => '04C',
61517 => '04D',
61518 => '04E',
61519 => '04F',
61520 => '050',
61521 => '051',
61522 => '052',
61523 => '053',
61524 => '054',
61525 => '055',
61526 => '056',
61527 => '057',
61528 => '058',
61529 => '059',
61530 => '05A',
61531 => '05B',
61532 => '05C',
61533 => '05D',
61534 => '05E',
61535 => '05F',
61536 => '060',
61537 => '061',
61538 => '062',
61539 => '063',
61540 => '064',
61541 => '065',
61542 => '066',
61543 => '067',
61544 => '068',
61545 => '069',
61546 => '06A',
61547 => '06B',
61548 => '06C',
61549 => '06D',
61550 => '06E',
61551 => '06F',
61552 => '070',
61553 => '071',
61554 => '072',
61555 => '073',
61556 => '074',
61557 => '075',
61558 => '076',
61559 => '077',
61560 => '078',
61561 => '079',
61562 => '07A',
61563 => '07B',
61564 => '07C',
61565 => '07D',
61566 => '07E',
61601 => '0A1',
61602 => '0A2',
61603 => '0A3',
61604 => '0A4',
61605 => '0A5',
61606 => '0A6',
61607 => '0A7',
61608 => '0A8',
61609 => '0A9',
61610 => '0AA',
61611 => '0AB',
61612 => '0AC',
61613 => '0AD',
61614 => '0AE',
61615 => '0AF',
61616 => '0B0',
61617 => '0B1',
61618 => '0B2',
61619 => '0B3',
61620 => '0B4',
61621 => '0B5',
61622 => '0B6',
61623 => '0B7',
61624 => '0B8',
61625 => '0B9',
61626 => '0BA',
61627 => '0BB',
61628 => '0BC',
61629 => '0BD',
61630 => '0BE',
61631 => '0BF',
61632 => '0C0',
61633 => '0C1',
61634 => '0C2',
61635 => '0C3',
61636 => '0C4',
61637 => '0C5',
61638 => '0C6',
61639 => '0C7',
61640 => '0C8',
61641 => '0C9',
61642 => '0CA',
61643 => '0CB',
61644 => '0CC',
61645 => '0CD',
61646 => '0CE',
61647 => '0CF',
61648 => '0D0',
61649 => '0D1',
61650 => '0D2',
61651 => '0D3',
61652 => '0D4',
61653 => '0D5',
61654 => '0D6',
61655 => '0D7',
61656 => '0D8',
61657 => '0D9',
61658 => '0DA',
61659 => '0DB',
61660 => '0DC',
61661 => '0DD',
61662 => '0DE',
61663 => '0DF',
61664 => '0E0',
61665 => '0E1',
61666 => '0E2',
61667 => '0E3',
61668 => '0E4',
61669 => '0E5',
61670 => '0E6',
61671 => '0E7',
61672 => '0E8',
61673 => '0E9',
61674 => '0EA',
61675 => '0EB',
61676 => '0EC',
61677 => '0ED',
61678 => '0EE',
61679 => '0EF',
61681 => '0F1',
61682 => '0F2',
61683 => '0F3',
61684 => '0F4',
61685 => '0F5',
61686 => '0F6',
61687 => '0F7',
61688 => '0F8',
61689 => '0F9',
61690 => '0FA',
61691 => '0FB',
61692 => '0FC',
61693 => '0FD',
61694 => '0FE'
);
$key = $decimal;
if( array_key_exists( $key, $_Symbol ) ){
if( $key <= 61487 )
$c = '0';
else
$c = 'f';
$char = json_decode( '"\u' . $c . $_Symbol[ $key ] . '"');
return $char;
}else{
echo "char not found <br>\n";
return "&#$decimal;";
}
}
这个脚本已经测试过将大型doc文件转换为html，具有高频率的数学符号。
要从 html 文件中对其进行测试，请使用以下代码：
$string = file_get_contents( 'testfile.html' );
$string = symbol_sanitize_string( $string );
echo $string;
//ensure that string is UTF-8 encoded
echo mb_detect_encoding($string) . "<br>";
【讨论】：
可在此处找到 Adobe 符号编码到 unicode 映射： ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/ADOBE/symbol.txt
我创建了一个 python3 类，可让您在 char 级别进行转换。在 github 上查看： https://github.com/Oufattole/Adobe-Symbol-Encodings-to-Unicode
您似乎可以只取 Adobe 编码符号的最后两个十六进制数字，符号到 unicode 映射（来自第一个链接）可以将其映射到正确的 unicode char。
【讨论】：