How many bytes does one character occupy in php?

The bytes occupied by characters in different encoding formats in php are different, which are: 1. ANSI Chinese characters occupy 2 bytes, and English characters occupy 1 byte; 2. UTF-8 Chinese characters Occupying 3 bytes, English characters occupy 1 byte; 3. Unicode Chinese characters occupy 2 bytes, and English characters occupy 2 bytes.

The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.

The bytes occupied by characters in different encoding formats are different:

ANSI Chinese characters occupy 2 bytes and English characters occupy 1 byte;

UTF-8 Chinese characters occupy 3 bytes and English characters occupy 1 byte;

Unicode Chinese characters occupy 2 bytes and English characters occupy 2 bytes;

Talk about the difference between characters and bytes:

(1) Definition of "byte"

Byte (Byte) is a unit of measurement that represents data It is a unit of measurement used by computer information technology to measure storage capacity.

(2) Definition of "Character"

Characters refer to the words and symbols used in computers, such as 1, 2, 3, A, B, C, ~!·#￥% ……-*()-- ,etc.

Numbers, letters and other symbols are characters. Characters only occupy one byte, and Chinese characters occupy two (UTF-8).

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