Manual do PHP
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# mb_strwidth

(PHP 4 >= 4.0.6, PHP 5)

mb_strwidth -- Return width of string

## Description

int mb_strwidth ( string str [, string encoding] )

mb_strwidth() returns width of string `str`.

Multi-byte character usually twice of width compare to single byte character.

Tabela 1. Characters width

Chars | Width
--- | ---
U+0000 - U+0019 | 0
U+0020 - U+1FFF | 1
U+2000 - U+FF60 | 2
U+FF61 - U+FF9F | 1
U+FFA0 - | 2

`encoding` is character encoding. If it is omitted, internal encoding is used.

See also: mb_strimwidth(), mb_internal_encoding().

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