mb_strwidth
(PHP 4 >= 4.0.6, PHP 5)
mb_strwidth — Return width of string
说明
int mb_strwidth ( string $str [, string $encoding ] )Returns the width of string str.
Multi-byte characters are usually twice the width of single byte characters.
| 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 |
参数
- str
-
The string being decoded.
- encoding
-
encoding 参数为字符编码。如果省略，则使用内部字符编码。
返回值
The width of string str.
参见
- mb_strimwidth() - Get truncated string with specified width
- mb_internal_encoding() - Set/Get internal character encoding
