convert unicode to html entities hex
Your string looks like UCS-4 encoding you can try
$first = preg_replace_callback('/[\x{80}-\x{10FFFF}]/u', function ($m) {
$char = current($m);
$utf = iconv('UTF-8', 'UCS-4', $char);
return sprintf("&#x%s;", ltrim(strtoupper(bin2hex($utf)), "0"));
}, $string);
Output
string 'Français' (length=13)
How to convert html entities into hex entities in php?
First of all, the "hex entities" are the entities with the character represented as Unicode codepoint. All Unicode characters could be represented as entities with the Unicode codepoint; in HTML, some can be represented with just a name, instead.
The list of entities in HTML which have a predefined name is quite long: http://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_entity_references_in_HTML
If you have a text which in which HTML entities are already converted using the shorthand name, then your only option is to do a search and replace. Needless to say, that can be quite computationally intense. The code would look like:
<?php
$str = 'Hello & world! "';
$find = ['&', '"']; //.. Complete the table with the entire list
$replace = ['&', '"']; // ... Complete this list too
$str = str_replace($find, $replace, $str);
echo $str;
?>
However, this can be very slow.
Can hexadecimal html be systematically converted to unicode via Javascript?
If you want to convert numeric HTML character references to Unicode escape sequences, try the following (doesn't work with with code points above 0xFFFF):
function convertCharRefs(string) {
return string
.replace(/&#(\d+);/g, function(match, num) {
var hex = parseInt(num).toString(16);
while (hex.length < 4) hex = '0' + hex;
return "\\u" + hex;
})
.replace(/&#x([A-Za-z0-9]+);/g, function(match, hex) {
while (hex.length < 4) hex = '0' + hex;
return "\\u" + hex;
});
}
If you simply want to decode the character references:
function decodeCharRefs(string) {
return string
.replace(/&#(\d+);/g, function(match, num) {
return String.fromCodePoint(num);
})
.replace(/&#x([A-Za-z0-9]+);/g, function(match, num) {
return String.fromCodePoint(parseInt(num, 16));
});
}
Both functions use String.replace with a function as replacement.
How to convert characters to HTML entities using plain JavaScript
With the help of bucabay and the advice to create my own function i created this one which works for me. What do you guys think, is there a better solution somewhere?
if(typeof escapeHtmlEntities == 'undefined') {
escapeHtmlEntities = function (text) {
return text.replace(/[\u00A0-\u2666<>\&]/g, function(c) {
return '&' +
(escapeHtmlEntities.entityTable[c.charCodeAt(0)] || '#'+c.charCodeAt(0)) + ';';
});
};
// all HTML4 entities as defined here: http://www.w3.org/TR/html4/sgml/entities.html
// added: amp, lt, gt, quot and apos
escapeHtmlEntities.entityTable = {
34 : 'quot',
38 : 'amp',
39 : 'apos',
60 : 'lt',
62 : 'gt',
160 : 'nbsp',
161 : 'iexcl',
162 : 'cent',
163 : 'pound',
164 : 'curren',
165 : 'yen',
166 : 'brvbar',
167 : 'sect',
168 : 'uml',
169 : 'copy',
170 : 'ordf',
171 : 'laquo',
172 : 'not',
173 : 'shy',
174 : 'reg',
175 : 'macr',
176 : 'deg',
177 : 'plusmn',
178 : 'sup2',
179 : 'sup3',
180 : 'acute',
181 : 'micro',
182 : 'para',
183 : 'middot',
184 : 'cedil',
185 : 'sup1',
186 : 'ordm',
187 : 'raquo',
188 : 'frac14',
189 : 'frac12',
190 : 'frac34',
191 : 'iquest',
192 : 'Agrave',
193 : 'Aacute',
194 : 'Acirc',
195 : 'Atilde',
196 : 'Auml',
197 : 'Aring',
198 : 'AElig',
199 : 'Ccedil',
200 : 'Egrave',
201 : 'Eacute',
202 : 'Ecirc',
203 : 'Euml',
204 : 'Igrave',
205 : 'Iacute',
206 : 'Icirc',
207 : 'Iuml',
208 : 'ETH',
209 : 'Ntilde',
210 : 'Ograve',
211 : 'Oacute',
212 : 'Ocirc',
213 : 'Otilde',
214 : 'Ouml',
215 : 'times',
216 : 'Oslash',
217 : 'Ugrave',
218 : 'Uacute',
219 : 'Ucirc',
220 : 'Uuml',
221 : 'Yacute',
222 : 'THORN',
223 : 'szlig',
224 : 'agrave',
225 : 'aacute',
226 : 'acirc',
227 : 'atilde',
228 : 'auml',
229 : 'aring',
230 : 'aelig',
231 : 'ccedil',
232 : 'egrave',
233 : 'eacute',
234 : 'ecirc',
235 : 'euml',
236 : 'igrave',
237 : 'iacute',
238 : 'icirc',
239 : 'iuml',
240 : 'eth',
241 : 'ntilde',
242 : 'ograve',
243 : 'oacute',
244 : 'ocirc',
245 : 'otilde',
246 : 'ouml',
247 : 'divide',
248 : 'oslash',
249 : 'ugrave',
250 : 'uacute',
251 : 'ucirc',
252 : 'uuml',
253 : 'yacute',
254 : 'thorn',
255 : 'yuml',
402 : 'fnof',
913 : 'Alpha',
914 : 'Beta',
915 : 'Gamma',
916 : 'Delta',
917 : 'Epsilon',
918 : 'Zeta',
919 : 'Eta',
920 : 'Theta',
921 : 'Iota',
922 : 'Kappa',
923 : 'Lambda',
924 : 'Mu',
925 : 'Nu',
926 : 'Xi',
927 : 'Omicron',
928 : 'Pi',
929 : 'Rho',
931 : 'Sigma',
932 : 'Tau',
933 : 'Upsilon',
934 : 'Phi',
935 : 'Chi',
936 : 'Psi',
937 : 'Omega',
945 : 'alpha',
946 : 'beta',
947 : 'gamma',
948 : 'delta',
949 : 'epsilon',
950 : 'zeta',
951 : 'eta',
952 : 'theta',
953 : 'iota',
954 : 'kappa',
955 : 'lambda',
956 : 'mu',
957 : 'nu',
958 : 'xi',
959 : 'omicron',
960 : 'pi',
961 : 'rho',
962 : 'sigmaf',
963 : 'sigma',
964 : 'tau',
965 : 'upsilon',
966 : 'phi',
967 : 'chi',
968 : 'psi',
969 : 'omega',
977 : 'thetasym',
978 : 'upsih',
982 : 'piv',
8226 : 'bull',
8230 : 'hellip',
8242 : 'prime',
8243 : 'Prime',
8254 : 'oline',
8260 : 'frasl',
8472 : 'weierp',
8465 : 'image',
8476 : 'real',
8482 : 'trade',
8501 : 'alefsym',
8592 : 'larr',
8593 : 'uarr',
8594 : 'rarr',
8595 : 'darr',
8596 : 'harr',
8629 : 'crarr',
8656 : 'lArr',
8657 : 'uArr',
8658 : 'rArr',
8659 : 'dArr',
8660 : 'hArr',
8704 : 'forall',
8706 : 'part',
8707 : 'exist',
8709 : 'empty',
8711 : 'nabla',
8712 : 'isin',
8713 : 'notin',
8715 : 'ni',
8719 : 'prod',
8721 : 'sum',
8722 : 'minus',
8727 : 'lowast',
8730 : 'radic',
8733 : 'prop',
8734 : 'infin',
8736 : 'ang',
8743 : 'and',
8744 : 'or',
8745 : 'cap',
8746 : 'cup',
8747 : 'int',
8756 : 'there4',
8764 : 'sim',
8773 : 'cong',
8776 : 'asymp',
8800 : 'ne',
8801 : 'equiv',
8804 : 'le',
8805 : 'ge',
8834 : 'sub',
8835 : 'sup',
8836 : 'nsub',
8838 : 'sube',
8839 : 'supe',
8853 : 'oplus',
8855 : 'otimes',
8869 : 'perp',
8901 : 'sdot',
8968 : 'lceil',
8969 : 'rceil',
8970 : 'lfloor',
8971 : 'rfloor',
9001 : 'lang',
9002 : 'rang',
9674 : 'loz',
9824 : 'spades',
9827 : 'clubs',
9829 : 'hearts',
9830 : 'diams',
338 : 'OElig',
339 : 'oelig',
352 : 'Scaron',
353 : 'scaron',
376 : 'Yuml',
710 : 'circ',
732 : 'tilde',
8194 : 'ensp',
8195 : 'emsp',
8201 : 'thinsp',
8204 : 'zwnj',
8205 : 'zwj',
8206 : 'lrm',
8207 : 'rlm',
8211 : 'ndash',
8212 : 'mdash',
8216 : 'lsquo',
8217 : 'rsquo',
8218 : 'sbquo',
8220 : 'ldquo',
8221 : 'rdquo',
8222 : 'bdquo',
8224 : 'dagger',
8225 : 'Dagger',
8240 : 'permil',
8249 : 'lsaquo',
8250 : 'rsaquo',
8364 : 'euro'
};
}
usage example:
var text = "Übergroße Äpfel mit Würmern";
alert(escapeHtmlEntities (text));
result:
Übergroße Äpfel mit Würmern
Update1: Thanks bucabay again for the || - hint
Update2: Updated entity table with amp,lt,gt,apos,quot, thanks
richardtallent for the hintUpdate3(in 2014): Mathias Bynens created a lib called 'he', maybe it serves your need.
Convert HTML entities to Unicode and vice versa
You need to have BeautifulSoup.
from BeautifulSoup import BeautifulStoneSoup
import cgi
def HTMLEntitiesToUnicode(text):
"""Converts HTML entities to unicode. For example '&' becomes '&'."""
text = unicode(BeautifulStoneSoup(text, convertEntities=BeautifulStoneSoup.ALL_ENTITIES))
return text
def unicodeToHTMLEntities(text):
"""Converts unicode to HTML entities. For example '&' becomes '&'."""
text = cgi.escape(text).encode('ascii', 'xmlcharrefreplace')
return text
text = "&, ®, <, >, ¢, £, ¥, €, §, ©"
uni = HTMLEntitiesToUnicode(text)
htmlent = unicodeToHTMLEntities(uni)
print uni
print htmlent
# &, ®, <, >, ¢, £, ¥, €, §, ©
# &, ®, <, >, ¢, £, ¥, €, §, ©
Android - Convert Unicode to HTML Entity
This is easier than you might think: U+1F601 corresponds to 😁.
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