Skip to content

Instantly share code, notes, and snippets.

@kijtra

kijtra/kana2alpha.php

Created May 21, 2011 04:43
Show Gist options
  • Save kijtra/984256 to your computer and use it in GitHub Desktop.
Save kijtra/984256 to your computer and use it in GitHub Desktop.
Download ZIP
[PHP] ひらがな、カタカナからアルファベットに変換する処理をクラス化。こちらのJavaScriptを参考にした。 → http://tenderfeel.xsrv.jp/mootools/382/
Raw
kana2alpha.php
<?php
class kana2roma {
var $charset='utf-8';
var $mode_Krows = 'k'; //か・く・こ(k or c)
var $mode_XArows = 'l'; //小文字ぁ行と「っ」( L or X)
var $mode_TYrows = 'ch'; //ち行＋小文字や行(ty or ch or cy)
var $mode_SYrows = 'sh'; //し行＋小文字や行(sy or sh)
var $mode_JYrows = 'j'; //じ行＋小文字や行(j or zy or jy)
var $mode_Sstr = 'sh'; //し(s or sh or c)
var $mode_Jstr = 'j'; //じ(j or z)
var $mode_TUstr = 'ts'; //つ(t or ts)
var $mode_FUstr = 'f'; //ふ(h or f)
var $mode_TIstr = 'ch'; //ち(t or ch)
var $mode_Nstr = 'n'; //ん(n or nn)
var $strout = true; //配列でなく文字で返すかどうか
var $chop = false; //ローマ字文字列をアルファベット１文字ごとに分解するかどうか
var $vowel = array("a","i","u","e","o");
var $child = array("a","k","s","t","n","h","m","y","r","w","g","z","d","b","p","x","y","t");
var $symbol = array("!","?","-","'",",");
var $number = array("0","1","2","3","4","5","6","7","8","9");
var $cols_H = array(
"A"=>array("あ","か","さ","た","な","は","ま","や","ら","わ","が","ざ","だ","ば","ぱ","ぁ","ゃ"),
"I"=>array("い","き","し","ち","に","ひ","み","＠","り","＠","ぎ","じ","ぢ","び","ぴ","ぃ"),
"U"=>array("う","く","す","つ","ぬ","ふ","む","ゆ","る","ん","ぐ","ず","づ","ぶ","ぷ","ぅ","ゅ","っ"),
"E"=>array("え","け","せ","て","ね","へ","め","＠","れ","＠","げ","ぜ","で","べ","ぺ","ぇ"),
"O"=>array("お","こ","そ","と","の","ほ","も","よ","ろ","を","ご","ぞ","ど","ぼ","ぽ","ぉ","ょ")
);
var $const=NULL;
function __construct($txt=NULL){
if(!empty($txt)){
$this->const=$txt;
return $this->conv($txt);
}
}
//パブリックメソッド
//文字列分割→字数で分岐→ローマ字変換
function conv($txt=NULL){
if(empty($txt) && !empty($this->const)){
$txt=$this->const;
}
if(empty($txt) && empty($this->const)){
return NULL;
}
$txt=mb_convert_kana($txt,"c",$this->charset);
$stack = $this->_TextSlice($txt);
$out = array();
for ($i = 0; $i <count($stack); $i++) {
if(mb_strlen($stack[$i],$this->charset) == 1){
$str = $this->_baseOne($stack[$i]);
$out[]=$this->stringChopper($str);
}else{
$str2 = $this->_baseTwo($stack[$i]);
$out[]=$this->stringChopper($str2);
}
}
if ($this->strout) {
return implode('',$out);
}
return $this->flatten($out);
}
//ローマ字文字列分解
//$this->chop　がtrueならアルファベット毎に分解
//@param {Object} str　ローマ字（日本語１文字分）
function stringChopper($str){
$out = array();
if ($this->chop && !$this->strout) {
for ($n = 0; $n <mb_strlen($str,$this->charset); $n++) {
$out[]=mb_substr($str,$n,1);
}
return $out;
}else{
return $str;
}
}
//文章を1文字単位に分割する
//@param {Object} str　文章
function _TextSlice($txt){
$max = mb_strlen($txt,$this->charset);
$n = 0;
$array = array();
for ($i = 0; $i <$max; $i++) {
++$n;//次
$str = mb_substr($txt,$i,1);//今の文字
$nxt = mb_substr($txt,$n,1);//次の文字
//隣接する１文字目が小文字や行なら
if(ereg("(ゃ|ゅ|ょ)",$nxt)){
$array[]=$str.$nxt;
$i++;
$n++;
}else if($str=="っ" && array_search($nxt,$this->symbol)===false ){
if(array_search($nxt,$this->number)===false){
$array[]=$str.$nxt;
$i++;
$n++;
}else{
$array[]=$str;
}
}else{
$array[]=$str;
}
}
return $array;
}
//変換ベース（2文字）
//小文字とセットで2文字になってる文字を判別して処理を分配する
//@param {Object} str　変換する文字（小文字とセットで2文字）
function _baseTwo($str){
if (ereg("っ",$str)) {
if(mb_strlen($str,$this->charset)==2){
$txt = $this->_baseOne(mb_substr($str,1,1));
return mb_substr($txt,0,1).$txt;
}else{
return $this->_baseOne($str);
}
}else{
switch($str){
case "ちゃ":
return $this->mode_TYrows.$this->vowel[0];
break;
case "ちゅ":
return $this->mode_TYrows.$this->vowel[2];
break;
case "ちょ":
return $this->mode_TYrows.$this->vowel[4];
break;
case "しゃ":
return $this->mode_SYrows.$this->vowel[0];
break;
case "しゅ":
return $this->mode_SYrows.$this->vowel[2];
break;
case "しょ":
return $this->mode_SYrows.$this->vowel[4];
break;
case "じゃ":
return $this->mode_JYrows.$this->vowel[0];
break;
case "じゅ":
return $this->mode_JYrows.$this->vowel[2];
break;
case "じょ":
return $this->mode_JYrows.$this->vowel[4];
break;
default:
$first = $this->_baseOne(mb_substr($str,0,1));
$second = $this->_baseOne(mb_substr($str,1,1));
return mb_substr($first,0,1).$second;
}
}
}
//変換ベース（1文字）
//あいうえお行の配列（cols_H,number,symbol）から文字が何かを判別して各関数へ処理を分配する
//@param {Object} str　変換する文字（１文字のみ）
function _baseOne($str){
if(array_search($str,$this->cols_H['A'])!==false){//あ行
return $this->_Change_A_Rows(array_search($str,$this->cols_H['A']));
}else if(array_search($str,$this->cols_H['I'])!==false){//い行
return $this->_Change_I_Rows(array_search($str,$this->cols_H['I']));
}else if(array_search($str,$this->cols_H['U'])!==false){//う行
return $this->_Change_U_Rows(array_search($str,$this->cols_H['U']));
}else if(array_search($str,$this->cols_H['E'])!==false){//え行
return $this->_Change_E_Rows(array_search($str,$this->cols_H['E']));
}else if(array_search($str,$this->cols_H['O'])!==false){//お行
return $this->_Change_O_Rows(array_search($str,$this->cols_H['O']));
}else if(array_search($str,$this->symbol) !== false){//記号
return $this->symbol[array_search($str,$this->symbol)];
}else if(array_search($str,$this->number) !== false){//数字
return $str;
}else{
return NULL;
}
}
//単音あ行文字をローマ字に
//@param {Object} key　ひらがな配列のキー番号
function _Change_A_Rows($key){
if ($key == 1){//か行
return $this->mode_Krows.$this->vowel[0];
}else if($key == 15){//小文字ぁ行
return $this->mode_XArows.$this->vowel[0];
}else if($key == 0){
return $this->vowel[0];
}else{
return $this->child[$key].$this->vowel[0];
}
}
//単音い行文字をローマ字に　
//@param {Object} key　ひらがな配列のキー番号
function _Change_I_Rows($key){
if ($key == 0){//母音
return $this->vowel[1];
}else if($key == 15){//小文字ぁ行
return $this->mode_XArows.$this->vowel[1];
}else if($key == 2){//し
return $this->mode_Sstr.$this->vowel[1];
}else if($key == 11){//じ
return $this->mode_Jstr.$this->vowel[1];
}else if($key == 3){//ち
return $this->mode_TIstr.$this->vowel[1];
}else{
return $this->child[$key].$this->vowel[1];
}
}
//単音う行文字をローマ字に　
//@param {Object} key　ひらがな配列のキー番号
function _Change_U_Rows($key){
if ($key == 0){//母音
return $this->vowel[2];
}else if($key == 1){//く
return $this->mode_Krows.$this->vowel[2];
}else if($key == 15){//小文字ぁ行
return $this->mode_XArows.$this->vowel[2];
}else if($key == 3){//つ
return $this->mode_TUstr.$this->vowel[2];
}else if($key == 5){//ふ
return $this->mode_FUstr.$this->vowel[2];
}else if($key == 9){//ん
return $this->mode_Nstr;
}else if($key == 17){//っ
return $this->mode_XArows.$this->mode_TUstr.$this->vowel[2];
}else{
return $this->child[$key].$this->vowel[2];
}
}
//単音え行文字をローマ字に　
//@param {Object} key　ひらがな配列のキー番号
function _Change_E_Rows($key){
if ($key == 0){//母音
return $this->vowel[3];
}else if($key == 15){//小文字ぁ行
return $this->mode_XArows.$this->vowel[3];
}else{
return $this->child[$key].$this->vowel[3];
}
}
//単音お行文字をローマ字に　
//@param {Object} key　ひらがな配列のキー番号
function _Change_O_Rows($key){
if ($key == 0){//母音
return $this->vowel[4];
}else if($key == 1){//こ
return $this->mode_Krows.$this->vowel[4];
}else if($key == 15){//小文字ぁ行
return $this->mode_XArows.$this->vowel[4];
}else{
return $this->child[$key].$this->vowel[4];
}
}
function flatten($array) {
$tmp = array();
while (($v = array_shift($array)) !== null) {
if (is_array($v)) {
$array = array_merge($v, $array);
} else {
$tmp[] = $v;
}
}
return $tmp;
}
}
?>
Raw
use.php
<?php
$roma=new kana2roma();
echo $roma->conv('アキハバラあったかまつり');
//または
$roma=new kana2roma('アキハバラあったかまつり');
echo $roma->conv();
//結果 = akihabaraattakamatsuri
?>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment