ConFoo 2025

mb_convert_kana

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

mb_convert_kanaConvert "kana" one from another ("zen-kaku", "han-kaku" and more)

说明

mb_convert_kana(string $string, string $mode = "KV", ?string $encoding = null): string

Performs a "han-kaku" - "zen-kaku" conversion for string string. This function is only useful for Japanese.

参数

string

The string being converted.

mode

The conversion option.

Specify with a combination of following options.

Applicable Conversion Options
Option Meaning
r Convert "zen-kaku" alphabets to "han-kaku"
R Convert "han-kaku" alphabets to "zen-kaku"
n Convert "zen-kaku" numbers to "han-kaku"
N Convert "han-kaku" numbers to "zen-kaku"
a Convert "zen-kaku" alphabets and numbers to "han-kaku"
A Convert "han-kaku" alphabets and numbers to "zen-kaku" (Characters included in "a", "A" options are U+0021 - U+007E excluding U+0022, U+0027, U+005C, U+007E)
s Convert "zen-kaku" space to "han-kaku" (U+3000 -> U+0020)
S Convert "han-kaku" space to "zen-kaku" (U+0020 -> U+3000)
k Convert "zen-kaku kata-kana" to "han-kaku kata-kana"
K Convert "han-kaku kata-kana" to "zen-kaku kata-kana"
h Convert "zen-kaku hira-gana" to "han-kaku kata-kana"
H Convert "han-kaku kata-kana" to "zen-kaku hira-gana"
c Convert "zen-kaku kata-kana" to "zen-kaku hira-gana"
C Convert "zen-kaku hira-gana" to "zen-kaku kata-kana"
V Collapse voiced sound notation and convert them into a character. Use with "K","H"

encoding

encoding 参数为字符编码。如果省略或是 null,则使用内部字符编码。

返回值

The converted string.

错误/异常

Throws a ValueError if the combination of different modes is invalid. For example "sS".

更新日志

版本 说明
8.2.0 A ValueError is now thrown if the combination of different modes is invalid.
8.0.0 现在 encoding 可以为 null。

示例

示例 #1 mb_convert_kana() example

<?php
/* Convert all "kana" to "zen-kaku" "kata-kana" */
$str = mb_convert_kana($str, "KVC");

/* Convert "han-kaku" "kata-kana" to "zen-kaku" "kata-kana"
and "zen-kaku" alphanumeric to "han-kaku" */
$str = mb_convert_kana($str, "KVa");
?>

添加备注

用户贡献的备注 3 notes

up
0
jdavide222 at hotmail dot com
11 years ago
to make this function work you have to add following two lines above this function.

mb_language("Ja");
mb_internal_encoding("utf-8");

mb_convert_kana($_POST['something_value'], "rna");
up
0
d at safetypub dot org
19 years ago
I didn't find Japanese sorting function.
(mb_sort_kana or something)
Only SJIS encoding treats hankaku kata kana,
I can't post here copy & paste version script.
I'm sorry...
You will replace comments with appropriate japanese string,
and write exception handlings between lines as you like.

<?php
mb_internal_encoding
("SJIS");

$moji = /*"aiueo...wawon -?.," <- serialized hankaku kata kana 50 on hyou goes here*/;
$moji .= "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxwz0123456789";

for(
$i = 0; isset($moji[$i]); $i++){
$pittan[$moji[$i]] = $i;
}

function
cmp($a, $b)
{
if (
$a == $b) {
return
0;
}
return
iter(mb_convert_kana($a, "askh") ,mb_convert_kana($b, "askh"), 0);
}

function
iter($a, $b, $i){
global
$pittan;
if(!isset(
$a[$i]) || !isset($b[$i])){
return (isset(
$b[$i]))? -1 : 1;
}
if (
$pittan[$a[$i]] == $pittan[$b[$i]]){
return
iter($a, $b, ++$i);
}
return ((
$pittan[$a[$i]]) < ($pittan[$b[$i]]))? -1 : 1;
}

echo
"<pre>";
$arr = array(/*some japanese array here*/);
usort($arr, "cmp");
var_dump($arr);
?>
up
-1
dn at littlealf dot net
21 years ago
It seems that mb_convert_kana() doesn't convert symbols such as ' (single quoatation). It affected my program when I insert data into database.

So, I've found 2 ways to solve this.
1) Use Javascript to convert those non-supported symbols before sending query string to your php page.
2) Use php function, str_replace $str, to replace those non-supported symbols. For example, $str = str_replace("'", "?", $str);
where the first single quot is half-width(han kaku), and the second one is full-width(zen kaku).
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