How many bytes is a Chinese character in php

Editor to share with you how many bytes a Chinese character is in php. I hope you will gain something after reading this article. Let's discuss it together.

For Chinese characters in php, if GBK and Big-5 versions are used, each Chinese character is equivalent to 2 bytes; if UTF-8 version is used, each Chinese character is equivalent to 3 bytes.

This article operating environment: Windows7 system, PHP7.4 version, Dell G3 computer.

A:

For Chinese characters, if GBK and Big-5 versions are used, each Chinese character is equivalent to 2 bytes

With the UTF-8 version, each Chinese character is equivalent to 3 bytes.

Bytes are units of binary data. A byte is usually 8 bits long. However, some older computer structures use different lengths. In order to avoid confusion, words are used instead of byte in most international literature. In most computer systems, a byte is an 8-bit long unit of data, and most computers use a byte to represent a character, number, or other character. A byte can also represent a series of binary bits. In some computer systems, four bytes represent a word, which is the unit in which the computer can effectively process data when executing instructions. Some language descriptions require two bytes to represent a character, which is called a double-byte character set. Some processors can handle double-byte or single-byte instructions. Bytes are usually abbreviated to "B", while bits are usually abbreviated to lowercase "b", and the size of computer memory is usually represented by bytes.

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