Unicode use in html

How can I use unicode characters in HTML keywords?

http://www.fileformat.info/info/unicode/char/2713/index.htm Solution 3: Make sure that you actually save the file as UTF-8, alternatively use HTML entities ( ) for the special characters. For more information, see my Guide to using special characters in HTML.

How can I use unicode characters in HTML keywords?

The meta section of HTML documents can contain a keyword section.

Can one use unicode characters in this section (i.e., \u00B0 )? If yes how?

All the characters you put into an HTML document, whether in attribute values or elsewhere, as Unicode characters. If the character encoding of your document is UTF-8, as your example declares (but it had better be UTF-8 encoded then!), you can enter any characters, such as the degree sign (°), directly there. How you do that depends on your authoring environment. You can alternatively use a character reference ( like ° ) or, for some characters, an entity reference ( like ° ).

But \u00B0 is not an HTML notation. It just a sequence of six characters. It has a special meaning in JavaScript, but not in HTML. The corresponding HTML notation is ° .

Search engines will probably ignore special characters like the degree sign in keywords. But not necessarily; Google has been observed to be sensitive to them in some special situations. (Not for the degree sign at the moment, it seems.)

In tags, special characters may be relevant if search engines use their content when constructing the page description for search result lists. Such things still happen, though less frequently than they used to.

Because non-English websites that use Unicode for their body content will also use Unicode for their metadata, it is reasonable to assume that the important tools that process HTML metadata will be able to cope with this in UTF-8.

Also bear in mind that (at least historically) the keywords meta tag was meant to contain terms that people might search for. Your example \00B0 is the degrees sign; in this case it seems more likely people will search for the word degrees than for the symbol °. Because of wide-scale abuse of keyword metadata, many search engines (including Google) ignore them for search ranking.

So, in summary, I think it is safe to use Unicode keyword metadata. But it probably won’t improve your site’s search ranking for those terms .

How can I use unicode characters in HTML keywords?, All the characters you put into an HTML document, whether in attribute values or elsewhere, as Unicode characters. If the character encoding of your document is UTF-8, as your example declares (but it had better be UTF-8 encoded then!), you can enter any characters, such as the degree sign (°), directly there.

How do I display Unicode as text in HTML?

I can’t manage to find a way to do this.For example ∞ (infinity symbol) to display as text in a HTML document

You have first to check what is the Content-Type header your server returns? Is it Content-Type: text/html; charset=UTF-8 ? See Character_encodings_in_HTML If the server returns the charset, either fix it or use it, it overrides user provided encoding. (see HTML entities).

If your server does not provide charset, then add one in the document, as early as possible (should be in the first 1024 bytes entirely). Again, see Character_encodings_in_HTML. The following header should do:

or for XHTML (the first line):

And if you do not/can not use UTF-8 for your document, use HTML entities like C Travel suggests.

You write the character, e.g. “∞”, in your authoring program, save the file as UTF-8 with BOM, and make sure that the fonts that you have declared for the page, or the relevant piece of text, contain the characters(s) you have included. For more information, see my Guide to using special characters in HTML. If problems remain, please post the code you have tried and specify how it fails (and on which browsers).

You can use the &#; HTML element. For codes: http://unicode-table.com/en/

And you have to use UTF-8 encoding for the file save, and you have to put UTF-8 meta tag in the header too. (If you didn’t already have this.)

HTML Unicode UTF-8, If the character does not have an HTML entity, you can use the decimal (dec) or hexadecimal (hex) reference. Example

I will display ♠

I will display ♠

I will display ♠

Will display as: I will display ♠ I will display ♠ I will display ♠ Try it Yourself » Previous Next

Displaying unicode symbols in HTML

I want to simply display the tick (✔) and cross (✘) symbols in a HTML page but it shows up as either a box or goop ✔ — obviously something to do with the encoding.

I have set the meta tag to show utf-8 but obviously I’m missing something.

Edit/Solution: From comments made, using FireBug I found the headers being passed by my page were in fact «Content-Type: text/html» and not UTF-8. Looking at the file format using Notepad++ showed my file was formatted as «UTF-8 without BOM». Changing this to just UTF-8 the symbols now show correctly. but firebug still seems to indicate the same content-type.

You should ensure the HTTP server headers are correct.

Content-Type: text/html; charset=utf-8 

The meta tag is ignored by browsers if the HTTP header is present.

Also ensure that your file is actually encoded as UTF-8 before serving it, check/try the following:

• Ensure your editor save it as UTF-8.
• Ensure your FTP or any file transfer program does not mess with the file.
• Try with HTML encoded entities, like &#uuu; .
• To be really sure, hexdump the file and look as the character, for the ✔, it should be E2 9C 94 .

Note: If you use an unicode character for which your system can’t find a glyph (no font with that character), your browser should display a question mark or some block like symbol. But if you see multiple roman characters like you do, this denotes an encoding problem.

I know an answer has already been accepted, but wanted to point a few things out.

Setting the content-type and charset is obviously a good practice, doing it on the server is much better, because it ensures consistency across your application.

However, I would use UTF-8 only when the language of my application uses a lot of characters that are available only in the UTF-8 charset. If you want to show a unicode character or symbol in one of cases, you can do so without changing the charset of your page.

HTML renderers have always been able to display symbols which are not part of the encoding character set of the page, as long as you mention the symbol in its numeric character reference (NCR) . Sounds weird but its true.

So, even if your html has a header that states it has an encoding of ansi or any of the iso charsets, you can display a check mark by using its html character reference, in decimal — ✓ or in hex — ✓

So its a little difficult to understand why you are facing this issue on your pages. Can you check if the NCR value is correct, this is a good reference http://www.fileformat.info/info/unicode/char/2713/index.htm

Make sure that you actually save the file as UTF-8, alternatively use HTML entities ( &#nnn; ) for the special characters.

Unlike proposed by Nicolas, the meta tag isn’t actually ignored by the browsers. However, the Content-Type HTTP header always has precedence over the presence of a meta tag in the document.

So make sure that you either send the correct encoding via the HTTP header, or don’t send this HTTP header at all (not recommended). The meta tag is mainly a fallback option for local documents which aren’t sent via HTTP traffic.

Using HTML entities should also be considered a workaround – that’s tiptoeing around the real problem. Configuring the web server properly prevents a lot of nuisance.

How do I display Unicode as text in HTML?, You write the character, e.g. “∞”, in your authoring program, save the file as UTF-8 with BOM, and make sure that the fonts that you have declared for the page, or the relevant piece of text, contain the characters (s) you have included. For more information, see my Guide to using special characters in HTML.

Private unicode character in HTML

I am rendering following HTML in browser:

This renders to a «bullet». However if I try to get the innerHTML for this element I get an empty square for &#61623 ; How do I ensure I get &#61623 ; ?

The above example is contrived. I am actually using CKEditor to render and edit some text from the server. The above HTML renders to a «bullet» in CKEditor when received from server. But on save the HTML sent to server does not contain &#61623 ;

Can someone throw light on what’s going on here. [ I know that this is a private unicode character. When this is rendered properly in web browser why is this not sent to server properly]

The 61623- issue occurs for get data while using:

(wtable.Elements().ElementAt(j)).Elements().ElementAt(k).InnerText 

Displaying unicode symbols in HTML, I know an answer has already been accepted, but wanted to point a few things out. Setting the content-type and charset is obviously a good practice, doing it on the server is much better, because it ensures consistency across your application.. However, I would use UTF-8 only when the language of my …

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HTML Unicode (UTF-8) Reference

The Unicode Consortium develops the Unicode Standard. Their goal is to replace the existing character sets with its standard Unicode Transformation Format (UTF).

The Unicode Standard has become a success and is implemented in HTML, XML, Java, JavaScript, E-mail, ASP, PHP, etc. The Unicode standard is also supported in many operating systems and all modern browsers.

The Unicode Consortium cooperates with the leading standards development organizations, like ISO, W3C, and ECMA.

The Unicode Character Sets

Unicode can be implemented by different character sets. The most commonly used encodings are UTF-8 and UTF-16:

Character-set	Description
UTF-8	A character in UTF8 can be from 1 to 4 bytes long. UTF-8 can represent any character in the Unicode standard. UTF-8 is backwards compatible with ASCII. UTF-8 is the preferred encoding for e-mail and web pages
UTF-16	16-bit Unicode Transformation Format is a variable-length character encoding for Unicode, capable of encoding the entire Unicode repertoire. UTF-16 is used in major operating systems and environments, like Microsoft Windows, Java and .NET.

Tip: The first 128 characters of Unicode (which correspond one-to-one with ASCII) are encoded using a single octet with the same binary value as ASCII, making valid ASCII text valid UTF-8-encoded Unicode as well.

HTML 4 supports UTF-8. HTML 5 supports both UTF-8 and UTF-16!

The HTML5 Standard: Unicode UTF-8

Because the character sets in ISO-8859 were limited in size, and not compatible in multilingual environments, the Unicode Consortium developed the Unicode Standard.

The Unicode Standard covers (almost) all the characters, punctuations, and symbols in the world.

Unicode enables processing, storage, and transport of text independent of platform and language.

The default character encoding in HTML-5 is UTF-8.

If an HTML5 web page uses a different character set than UTF-8, it should be specified in the tag like:

Example

The Difference Between Unicode and UTF-8

Unicode is a character set. UTF-8 is encoding.

Unicode is a list of characters with unique decimal numbers (code points). A = 65, B = 66, C = 67, .

This list of decimal numbers represent the string «hello»: 104 101 108 108 111

Encoding is how these numbers are translated into binary numbers to be stored in a computer:

UTF-8 encoding will store «hello» like this (binary): 01101000 01100101 01101100 01101100 01101111

Encoding translates numbers into binary. Character sets translates characters to numbers.

HTML5 UTF-8 Character Codes

Below is a list of some of the UTF-8 character codes supported by HTML5:

Character codes	Decimal	Hexadecimal
C0 Controls and Basic Latin	0-127	0000-007F
C1 Controls and Latin-1 Supplement	128-255	0080-00FF
Latin Extended-A	256-383	0100-017F
Latin Extended-B	384-591	0180-024F
Spacing Modifiers	688-767	02B0-02FF
Diacritical Marks	768-879	0300-036F
Greek and Coptic	880-1023	0370-03FF
Cyrillic Basic	1024-1279	0400-04FF
Cyrillic Supplement	1280-1327	0500-052F
General Punctuation	8192-8303	2000-206F
Currency Symbols	8352-8399	20A0-20CF
Letterlike Symbols	8448-8527	2100-214F
Arrows	8592-8703	2190-21FF
Mathematical Operators	8704-8959	2200-22FF
Box Drawings	9472-9599	2500-257F
Block Elements	9600-9631	2580-259F
Geometric Shapes	9632-9727	25A0-25FF
Miscellaneous Symbols	9728-9983	2600-26FF
Dingbats	9984-10175	2700-27BF

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