(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)
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.
stringThe string being converted.
modeThe conversion option.
Specify with a combination of following 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" |
encodingThe encoding parameter is the character encoding. If it is omitted or null, the internal character encoding value will be used.
The converted string.
Throws a ValueError if the combination of different modes is invalid. For example "sS".
| Version | Description |
|---|---|
| 8.2.0 | A ValueError is now thrown if the combination of different modes is invalid. |
| 8.0.0 | encoding is nullable now. |
Example #1 mb_convert_kana() example
<?php
/* Convert all "han-kaku" "kata-kana" to "zen-kaku" "hira-gana" */
echo mb_convert_kana('ﾔﾏﾀﾞ ﾊﾅｺ', "HV") . "\n";
/* Convert "han-kaku" "kata-kana" to "zen-kaku" "kata-kana"
and "zen-kaku" alphanumeric to "han-kaku" */
echo mb_convert_kana('ｺｳｻﾞﾊﾞﾝｺﾞｳ ０１２３４５６', "KVa") . "\n";
?> The above example will output:
やまだ はなこ コウザバンゴウ 0123456
© 1997–2025 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.mb-convert-kana.php