Important, if you're looking to trim/cut/truncate a string so that it will fit a certain byte size (for example to fit in a database field), look at: mb_strcut()
(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
mb_strwidth — Return width of string
Returns the width of string string
,
where halfwidth characters count as 1
, and fullwidth
characters count as 2
.
See » http://www.unicode.org/reports/tr11/
for details regarding East Asian character widths.
The fullwidth characters are:
U+1100
-U+115F
,
U+11A3
-U+11A7
,
U+11FA
-U+11FF
,
U+2329
-U+232A
,
U+2E80
-U+2E99
,
U+2E9B
-U+2EF3
,
U+2F00
-U+2FD5
,
U+2FF0
-U+2FFB
,
U+3000
-U+303E
,
U+3041
-U+3096
,
U+3099
-U+30FF
,
U+3105
-U+312D
,
U+3131
-U+318E
,
U+3190
-U+31BA
,
U+31C0
-U+31E3
,
U+31F0
-U+321E
,
U+3220
-U+3247
,
U+3250
-U+32FE
,
U+3300
-U+4DBF
,
U+4E00
-U+A48C
,
U+A490
-U+A4C6
,
U+A960
-U+A97C
,
U+AC00
-U+D7A3
,
U+D7B0
-U+D7C6
,
U+D7CB
-U+D7FB
,
U+F900
-U+FAFF
,
U+FE10
-U+FE19
,
U+FE30
-U+FE52
,
U+FE54
-U+FE66
,
U+FE68
-U+FE6B
,
U+FF01
-U+FF60
,
U+FFE0
-U+FFE6
,
U+1B000
-U+1B001
,
U+1F200
-U+1F202
,
U+1F210
-U+1F23A
,
U+1F240
-U+1F248
,
U+1F250
-U+1F251
,
U+20000
-U+2FFFD
,
U+30000
-U+3FFFD
.
All other characters are halfwidth characters.
The width of string string
.
Версія | Опис |
---|---|
8.0.0 |
encoding тепер може бути null .
|
Приклад #1 mb_strwidth() example
<?php
var_dump(
mb_strwidth('a'), // LATIN SMALL LETTER A
mb_strwidth("\u{ff41}") // FULLWIDTH LATIN SMALL LETTER A
);
?>
Поданий вище приклад виведе:
int(1) int(2)
Important, if you're looking to trim/cut/truncate a string so that it will fit a certain byte size (for example to fit in a database field), look at: mb_strcut()