What are the differences between gbk and gb2312? (Summarize)

This article mainly introduces to you the differences between gbk and gb2312.

First of all, everyone needs to understand what is gbk? What is gb2312? We need to know that they are all a kind of character encoding. Of course, there are many kinds of character encodings.

And Character encodingWe can understand it this way:

The binary values ​​​​stored in the computer are all 0 and 1.

Eight digits correspond to one byte, commonly expressed in hexadecimal.

So what if we want to see the characters we want displayed on the computer instead of various numbers 0 and 1?

Here we need to make the computer convert the corresponding hexadecimal values ​​it stores into corresponding characters, including characters in other languages ​​such as English and Chinese, and then output them to the screen.

So Encoding That is, a set of rules is defined to specify which values ​​​​correspond to which characters.

Then Character encoding defines a set of rules that specifies which value among so many values ​​stored in the computer corresponds to which letter is displayed on the computer screen.

To sum up, everyone should be able to understand that GBK and GB2312 are a kind of character encoding.

Let’s talk about their differences and similarities in detail:

Similarities:

1, GBK and GB2312 are all 16-bit!

2. They are usually used in the meta tags of web pages.

Differences:

1. GBK character encoding supports Simplified Chinese and Traditional Chinese!

GBK stands for "Chinese Internal Code Specification" (GBK is the first letter of "National Standard" and "Extended" Chinese Pinyin, English name: Chinese Internal Code Specification), national information of the People's Republic of China The Technical Committee for Technical Standardization was formulated on December 1, 1995. The Standardization Department of the State Bureau of Technical Supervision and the Science and Technology and Quality Supervision Department of the Ministry of Electronic Industry jointly identified it as Technical Supervision Bid Letter No. 1995 229 on December 15, 1995. Technical specification guidance document.

2. GB2312 only supports Simplified Chinese!

"Chinese Coded Character Set for Information Exchange" is a set of national standards published by the State Administration of Standards of China in 1980 and implemented on May 1, 1981. The standard number is GB 2312-1980.
The GB 2312 standard contains a total of 6763 Chinese characters, including 3755 first-level Chinese characters and 3008 second-level Chinese characters. At the same time, GB 2312 includes Latin letters, Greek letters, Japanese hiragana and katakana letters, and Russian Cyrillic letters. 682 full-width characters included.

If your webpage is mainly for Chinese people who speak Chinese, it is very good to use GB2312 and GBK. The text storage volume should be small, which has some advantages. If your webpage is to be open to the world, and you use GB2312 and GBK as webpage encoding, some computer browsers do not have this encoding, and the Chinese character content of your webpage will become unrecognizable garbled characters.

At this time, you need to use UTF-8 encoding, which is common around the world. In later articles, we will continue to introduce UTF-8 encoding and other related knowledge to you. You are welcome to continue to pay attention to PHP Chinese website !

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

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