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Multibyte String Functions
PHP Manual

# mb_convert_kana

(PHP 4 >= 4.0.6, PHP 5)

mb_convert_kana — Convert "kana" one from another ("zen-kaku", "han-kaku" and more)

### Description

string mb_convert_kana ( string `$str` [, string `$option` [, string `$encoding` ]] )

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

### Parameters

`str`

  The string being converted.

`option`

  The conversion option. The default value is "KV".

  Specify with a combination of following options. The default value is KV.

  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`

  The `encoding` parameter is the character encoding. If it is omitted, the internal character encoding value will be used.

### Return Values

The converted string.

### Examples

Example#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" alpha-numeric to "han-kaku" */
$str = mb_convert_kana($str, "KVa");
?>`

mb_convert_encoding
mb_convert_variables
Multibyte String Functions
PHP Manual