摘要：拼音字符轉換圖將中文編碼成拼音要轉換為拼音的字符串返回格式每個字的首字母全拼音字符串字母中文轉換到拼音每次處理一個字符待處理字符雙字節拼音結果為拼音首字母測試文字結果為全拼音測試文字結果為第一個拼音測試文字

class Pinyin {
    /**
     * 拼音字符轉換圖
     * @var array
     */
    private $data = array(
        "a"=>-20319,"ai"=>-20317,"an"=>-20304,"ang"=>-20295,"ao"=>-20292,
        "ba"=>-20283,"bai"=>-20265,"ban"=>-20257,"bang"=>-20242,"bao"=>-20230,"bei"=>-20051,"ben"=>-20036,"beng"=>-20032,"bi"=>-20026,"bian"=>-20002,"biao"=>-19990,"bie"=>-19986,"bin"=>-19982,"bing"=>-19976,"bo"=>-19805,"bu"=>-19784,
        "ca"=>-19775,"cai"=>-19774,"can"=>-19763,"cang"=>-19756,"cao"=>-19751,"ce"=>-19746,"ceng"=>-19741,"cha"=>-19739,"chai"=>-19728,"chan"=>-19725,"chang"=>-19715,"chao"=>-19540,"che"=>-19531,"chen"=>-19525,"cheng"=>-19515,"chi"=>-19500,"chong"=>-19484,"chou"=>-19479,"chu"=>-19467,"chuai"=>-19289,"chuan"=>-19288,"chuang"=>-19281,"chui"=>-19275,"chun"=>-19270,"chuo"=>-19263,"ci"=>-19261,"cong"=>-19249,"cou"=>-19243,"cu"=>-19242,"cuan"=>-19238,"cui"=>-19235,"cun"=>-19227,"cuo"=>-19224,
        "da"=>-19218,"dai"=>-19212,"dan"=>-19038,"dang"=>-19023,"dao"=>-19018,"de"=>-19006,"deng"=>-19003,"di"=>-18996,"dian"=>-18977,"diao"=>-18961,"die"=>-18952,"ding"=>-18783,"diu"=>-18774,"dong"=>-18773,"dou"=>-18763,"du"=>-18756,"duan"=>-18741,"dui"=>-18735,"dun"=>-18731,"duo"=>-18722,
        "e"=>-18710,"en"=>-18697,"er"=>-18696,
        "fa"=>-18526,"fan"=>-18518,"fang"=>-18501,"fei"=>-18490,"fen"=>-18478,"feng"=>-18463,"fo"=>-18448,"fou"=>-18447,"fu"=>-18446,
        "ga"=>-18239,"gai"=>-18237,"gan"=>-18231,"gang"=>-18220,"gao"=>-18211,"ge"=>-18201,"gei"=>-18184,"gen"=>-18183,"geng"=>-18181,"gong"=>-18012,"gou"=>-17997,"gu"=>-17988,"gua"=>-17970,"guai"=>-17964,"guan"=>-17961,"guang"=>-17950,"gui"=>-17947,"gun"=>-17931,"guo"=>-17928,
        "ha"=>-17922,"hai"=>-17759,"han"=>-17752,"hang"=>-17733,"hao"=>-17730,"he"=>-17721,"hei"=>-17703,"hen"=>-17701,"heng"=>-17697,"hong"=>-17692,"hou"=>-17683,"hu"=>-17676,"hua"=>-17496,"huai"=>-17487,"huan"=>-17482,"huang"=>-17468,"hui"=>-17454,"hun"=>-17433,"huo"=>-17427,
        "ji"=>-17417,"jia"=>-17202,"jian"=>-17185,"jiang"=>-16983,"jiao"=>-16970,"jie"=>-16942,"jin"=>-16915,"jing"=>-16733,"jiong"=>-16708,"jiu"=>-16706,"ju"=>-16689,"juan"=>-16664,"jue"=>-16657,"jun"=>-16647,
        "ka"=>-16474,"kai"=>-16470,"kan"=>-16465,"kang"=>-16459,"kao"=>-16452,"ke"=>-16448,"ken"=>-16433,"keng"=>-16429,"kong"=>-16427,"kou"=>-16423,"ku"=>-16419,"kua"=>-16412,"kuai"=>-16407,"kuan"=>-16403,"kuang"=>-16401,"kui"=>-16393,"kun"=>-16220,"kuo"=>-16216,
        "la"=>-16212,"lai"=>-16205,"lan"=>-16202,"lang"=>-16187,"lao"=>-16180,"le"=>-16171,"lei"=>-16169,"leng"=>-16158,"li"=>-16155,"lia"=>-15959,"lian"=>-15958,"liang"=>-15944,"liao"=>-15933,"lie"=>-15920,"lin"=>-15915,"ling"=>-15903,"liu"=>-15889,"long"=>-15878,"lou"=>-15707,"lu"=>-15701,"lv"=>-15681,"luan"=>-15667,"lue"=>-15661,"lun"=>-15659,"luo"=>-15652,
        "ma"=>-15640,"mai"=>-15631,"man"=>-15625,"mang"=>-15454,"mao"=>-15448,"me"=>-15436,"mei"=>-15435,"men"=>-15419,"meng"=>-15416,"mi"=>-15408,"mian"=>-15394,"miao"=>-15385,"mie"=>-15377,"min"=>-15375,"ming"=>-15369,"miu"=>-15363,"mo"=>-15362,"mou"=>-15183,"mu"=>-15180,
        "na"=>-15165,"nai"=>-15158,"nan"=>-15153,"nang"=>-15150,"nao"=>-15149,"ne"=>-15144,"nei"=>-15143,"nen"=>-15141,"neng"=>-15140,"ni"=>-15139,"nian"=>-15128,"niang"=>-15121,"niao"=>-15119,"nie"=>-15117,"nin"=>-15110,"ning"=>-15109,"niu"=>-14941,"nong"=>-14937,"nu"=>-14933,"nv"=>-14930,"nuan"=>-14929,"nue"=>-14928,"nuo"=>-14926,
        "o"=>-14922,"ou"=>-14921,
        "pa"=>-14914,"pai"=>-14908,"pan"=>-14902,"pang"=>-14894,"pao"=>-14889,"pei"=>-14882,"pen"=>-14873,"peng"=>-14871,"pi"=>-14857,"pian"=>-14678,"piao"=>-14674,"pie"=>-14670,"pin"=>-14668,"ping"=>-14663,"po"=>-14654,"pu"=>-14645,
        "qi"=>-14630,"qia"=>-14594,"qian"=>-14429,"qiang"=>-14407,"qiao"=>-14399,"qie"=>-14384,"qin"=>-14379,"qing"=>-14368,"qiong"=>-14355,"qiu"=>-14353,"qu"=>-14345,"quan"=>-14170,"que"=>-14159,"qun"=>-14151,
        "ran"=>-14149,"rang"=>-14145,"rao"=>-14140,"re"=>-14137,"ren"=>-14135,"reng"=>-14125,"ri"=>-14123,"rong"=>-14122,"rou"=>-14112,"ru"=>-14109,"ruan"=>-14099,"rui"=>-14097,"run"=>-14094,"ruo"=>-14092,
        "sa"=>-14090,"sai"=>-14087,"san"=>-14083,"sang"=>-13917,"sao"=>-13914,"se"=>-13910,"sen"=>-13907,"seng"=>-13906,"sha"=>-13905,"shai"=>-13896,"shan"=>-13894,"shang"=>-13878,"shao"=>-13870,"she"=>-13859,"shen"=>-13847,"sheng"=>-13831,"shi"=>-13658,"shou"=>-13611,"shu"=>-13601,"shua"=>-13406,"shuai"=>-13404,"shuan"=>-13400,"shuang"=>-13398,"shui"=>-13395,"shun"=>-13391,"shuo"=>-13387,"si"=>-13383,"song"=>-13367,"sou"=>-13359,"su"=>-13356,"suan"=>-13343,"sui"=>-13340,"sun"=>-13329,"suo"=>-13326,
        "ta"=>-13318,"tai"=>-13147,"tan"=>-13138,"tang"=>-13120,"tao"=>-13107,"te"=>-13096,"teng"=>-13095,"ti"=>-13091,"tian"=>-13076,"tiao"=>-13068,"tie"=>-13063,"ting"=>-13060,"tong"=>-12888,"tou"=>-12875,"tu"=>-12871,"tuan"=>-12860,"tui"=>-12858,"tun"=>-12852,"tuo"=>-12849,
        "wa"=>-12838,"wai"=>-12831,"wan"=>-12829,"wang"=>-12812,"wei"=>-12802,"wen"=>-12607,"weng"=>-12597,"wo"=>-12594,"wu"=>-12585,
        "xi"=>-12556,"xia"=>-12359,"xian"=>-12346,"xiang"=>-12320,"xiao"=>-12300,"xie"=>-12120,"xin"=>-12099,"xing"=>-12089,"xiong"=>-12074,"xiu"=>-12067,"xu"=>-12058,"xuan"=>-12039,"xue"=>-11867,"xun"=>-11861,
        "ya"=>-11847,"yan"=>-11831,"yang"=>-11798,"yao"=>-11781,"ye"=>-11604,"yi"=>-11589,"yin"=>-11536,"ying"=>-11358,"yo"=>-11340,"yong"=>-11339,"you"=>-11324,"yu"=>-11303,"yuan"=>-11097,"yue"=>-11077,"yun"=>-11067,
        "za"=>-11055,"zai"=>-11052,"zan"=>-11045,"zang"=>-11041,"zao"=>-11038,"ze"=>-11024,"zei"=>-11020,"zen"=>-11019,"zeng"=>-11018,"zha"=>-11014,"zhai"=>-10838,"zhan"=>-10832,"zhang"=>-10815,"zhao"=>-10800,"zhe"=>-10790,"zhen"=>-10780,"zheng"=>-10764,"zhi"=>-10587,"zhong"=>-10544,"zhou"=>-10533,"zhu"=>-10519,"zhua"=>-10331,"zhuai"=>-10329,"zhuan"=>-10328,"zhuang"=>-10322,"zhui"=>-10315,"zhun"=>-10309,"zhuo"=>-10307,"zi"=>-10296,"zong"=>-10281,"zou"=>-10274,"zu"=>-10270,"zuan"=>-10262,"zui"=>-10260,"zun"=>-10256,"zuo"=>-10254
    );

    /**
     * 將中文編碼成拼音
     * @param string $str 要轉換為拼音的字符串
     * @param string $RetFormat 返回格式 [first:每個字的首字母|all:全拼音|one:字符串字母]
     * @return string
     */
    public function get_pinyin($str, $RetFormat="first")
    {
        $GBK = iconv("UTF-8", "GBK", $str);
        $UTF8 = iconv("GBK", "UTF-8", $GBK);
        if($UTF8 != $str) $GBK = $str;
        $Buf = array();
        for ($i=0, $iLoop=strlen($GBK); $i<$iLoop; $i++) {
            $Chr = ord($GBK{$i});
            if ($Chr>160) {
                $Chr = ($Chr<<8) + ord($GBK{++$i}) - 65536;
            }
            if ("first" == $RetFormat || "one" == $RetFormat) {
                $Buf[] = substr($this->zh2py($Chr),0,1);
            }else{
                $Buf[] = $this->zh2py($Chr);
            }

        }
        if ("first" === $RetFormat) {
            return implode("", $Buf);
        }elseif("one" == $RetFormat) {
            return $Buf[0];
        }else{
            return implode(" ", $Buf);
        }
    }

    /**
     * 中文轉換到拼音(每次處理一個字符)
     * @param number $iWORD 待處理字符雙字節
     * @return string 拼音
     */
    private function zh2py($iWORD) 
    {
        if($iWORD>0 && $iWORD<160 ) {
            return chr($iWORD);
        } elseif ($iWORD<-20319||$iWORD>-10247) {
            return "";
        } else {
            foreach ($this->data as $py => $code) {
                if($code > $iWORD) break;
                $result = $py;
            }
            return $result;
        }
    }
}

$Pinyin = new Pinyin();
//結果為拼音首字母
echo $Pinyin->get_pinyin("測試文字"), "
"; 
//結果為全拼音
echo $Pinyin->get_pinyin("測試文字", "all"), "
"; 
//結果為第一個拼音
echo $Pinyin->get_pinyin("測試文字", "one"), "
";