How many bytes does one character occupy in php?

The bytes occupied by characters in different encoding formats in php are different. In ANSI encoding format, one Chinese character occupies 2 bytes and one English character occupies 1 byte; in UTF-8 encoding format, one Chinese character occupies 3 bytes and one English character occupies 1 byte.

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

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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) "Bytes" Definition

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

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(2) Definition of "Character"

Characters refer to text and characters used in computers Symbols, such as 1, 2, 3, A, B, C, ~! ·#￥%……—*()——, etc.

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

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