The mb_strwidth Function
The mb_strwidth function measures the width of a string, considering that full-width characters (for example, Chinese characters) occupy 2 positions, while regular characters occupy 1 position. The first parameter is the string to be measured, the second optional parameter is the encoding.
Syntax
phpmb_strwidth(string, [encoding]);
Example
Let's measure the width of a string with Latin characters:
php<?php
echo mb_strwidth('Hello');
?>
Code execution result:
php5
Example
Let's measure the width of a string with Japanese characters:
php<?php
echo mb_strwidth('こんにちは');
?>
Code execution result:
php10
Example
Let's measure the width of a mixed string:
php<?php
echo mb_strwidth('Hello 世界');
?>
Code execution result:
php9