mb_convert_kana

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

mb_convert_kana — Convert "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 `mode`s 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");
?>

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＋添加备注

用户贡献的备注 3 notes

down

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");

down

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);
?>

down

-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).