What are the differences between gb2312 and utf-8? how to choose? (Summarize)

This article mainly introduces the difference between gb2312 and utf-8.

I believe everyone should know that Chinese characters cannot be stored directly in the computer, but codes are stored.

Then under different environmental requirements, there will be different character encodings.

gb2312 and utf-8 are both character encodings. In the previous article [What are the differences between gbk and gb2312? ], we have summarized the differences between gbk and gb2312, and also introduced in detail what character encoding is? Friends in need can go and refer to it.

GB2312 is a simplified Chinese character set, consisting of 6763 commonly used Chinese characters and 682 full-width non-Chinese characters. gb2312 is a national standard and a Chinese character library. It only covers Chinese characters and some commonly used foreign languages, such as Japanese katakana, and common symbols.

UTF-8（8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, also known as Unicode, created by Ken Thompson in 1992. Now standardized as RFC 3629. UTF-8 encodes Unicode characters using 1 to 6 bytes.

UTF-8 stores 3 bytes of a Chinese character. In gb2312, a Chinese character is stored in 2 bytes.

The main difference between gb2312 and utf-8:

About the font size: UTF-8 > gb2312 (utf8 full character And gb2312 only has Chinese characters)

About saving size: UTF-8> gb2312 (utf8 is more bloated and loads slower, gb2312 is smaller and loads faster)

About scope of application: gb2312 is mainly used in mainland China. It is a localized character set. UTF-8 contains characters that need to be used in all countries around the world. It is an international encoding and has strong versatility. UTF-8 encoded text can be displayed on browsers in various countries that support the UTF8 character set.

So how to choose the coding during project development?

This requires everyone to make a choice based on their own needs and the advantages of different encodings.

For example, if the website contains a lot of data and is only for domestic users, it is recommended to use gb2312 encoding.

If the website has more English content or a corporate website with less content, it is recommended to use UTF-8 encoding.

This is mainly selected based on the different database storage spaces of gb2312 and utf8 encoding.

This article is about the difference between gb2312 and utf-8. I hope it will be helpful to friends in need!

The above is the detailed content of What are the differences between gb2312 and utf-8? how to choose? (Summarize). For more information, please follow other related articles on the PHP Chinese website!