Question

php 中文转拼音首字母问题

<?php
function getfirstchar($s0) {
$fchar = ord(mb_substr($s0, 0, 1,"UTF-8"));
if (($fchar >= ord("a") and $fchar <= ord("z"))or($fchar >= ord("A") and $fchar <= ord("Z"))) return strtoupper(chr($fchar));
$s = iconv("UTF-8", "gb2312//IGNORE", $s0);
$asc = ord($s{0}) * 256 + ord($s{1})-65536;
if ($asc >= -20319 and $asc <= -20284)return "A";
if ($asc >= -20283 and $asc <= -19776)return "B";
if ($asc >= -19775 and $asc <= -19219)return "C";
if ($asc >= -19218 and $asc <= -18711)return "D";
if ($asc >= -18710 and $asc <= -18527)return "E";
if ($asc >= -18526 and $asc <= -18240)return "F";
if ($asc >= -18239 and $asc <= -17923)return "G";
if ($asc >= -17922 and $asc <= -17418)return "H";
if ($asc >= -17417 and $asc <= -16475)return "J";
if ($asc >= -16474 and $asc <= -16213)return "K";
if ($asc >= -16212 and $asc <= -15641)return "L";
if ($asc >= -15640 and $asc <= -15166)return "M";
if ($asc >= -15165 and $asc <= -14923)return "N";
if ($asc >= -14922 and $asc <= -14915)return "O";
if ($asc >= -14914 and $asc <= -14631)return "P";
if ($asc >= -14630 and $asc <= -14150)return "Q";
if ($asc >= -14149 and $asc <= -14091)return "R";
if ($asc >= -14090 and $asc <= -13319)return "S";
if ($asc >= -13318 and $asc <= -12839)return "T";
if ($asc >= -12838 and $asc <= -12557)return "W";
if ($asc >= -12556 and $asc <= -11848)return "X";
if ($asc >= -11847 and $asc <= -11056)return "Y";
if ($asc >= -11055 and $asc <= -10247)return "Z";
return null;
}

function getLetter($string)
{
$len=mb_strlen($string,'utf-8');
$pinyin='';
for ($i=0; $i<$len; $i++)
{
$word = mb_substr($string,$i,1,"UTF-8");
$pinyin.= getfirstchar($word);
}
return $pinyin;
}

echo strtolower(getLetter("妃"));?>
某些中文无法正常检测，比如那个‘妃’字是怎么回事

Answer 1

原始代码有些问题，我做了些更改，原地址github 的 chenall/chenall/blob/master/php/tools/ZH-cn_TO_pinyin.php

<?php
/*
    中文汉字转拼音首字母的PHP简易实现方法.
    要求: 只能是GB2312码表里面中文字符
    转换得到字符串对应的拼音首字母大写.
    用法:
    echo zh2py::conv('Chinese 中华人民共和国');//Chinese ZHRMGHG
    或
    $py = new zh2py;
    echo $py->conv('Chinese 中华人民共和国');//Chinese ZHRMGHG
*/
class zh2py
{
    //根据汉字区位表
    //我们可以看到从16-55区之间是按拼音字母排序的,所以我们只需要判断某个汉字的区位码就可以得知它的拼音首字母.
    //区位表第一部份,按拼音字母排序的.
    //16区-55区
    /*
        'A'=>0xB0A1, 'B'=>0xB0C5, 'C'=>0xB2C1, 'D'=>0xB4EE, 'E'=>0xB6EA, 'F'=>0xB7A2, 'G'=>0xB8C1,'H'=>0xB9FE,
    'J'=>0xBBF7, 'K'=>0xBFA6, 'L'=>0xC0AC, 'M'=>0xC2E8, 'N'=>0xC4C3, 'O'=>0xC5B6, 'P'=>0xC5BE,'Q'=>0xC6DA,
    'R'=>0xC8BB, 'S'=>0xC8F6, 'T'=>0xCBFA, 'W'=>0xCDDA, 'X'=>0xCEF4, 'Y'=>0xD1B9, 'Z'=>0xD4D1
    */
    private static $FirstTable = array(
    0xB0C5, 0xB2C1, 0xB4EE, 0xB6EA, 0xB7A2, 0xB8C1, 0xB9FE, 0xBBF7, 0xBFA6, 0xC0AC, 0xC2E8,
    0xC4C3, 0xC5B6, 0xC5BE, 0xC6DA, 0xC8BB, 0xC8F6, 0xCBFA, 0xCDDA, 0xCEF4, 0xD1B9, 0xD4D1,0xD7FA
    );
    private static $FirstLetter = "ABCDEFGHJKLMNOPQRSTWXYZ";
    //区位表第二部份,不规则的,下面的字母是每个区里面对应字的拼音首字母.从网上查询整理出来的,可能会有部份错误.
    //56区-87区
    private static $SecondTable = array(
        "CJWGNSPGCGNEGYPBTYYZDXYKYGTZJNMJQMBSGZSCYJSYYFPGKBZGYDYWJKGKLJSWKPJQHYJWRDZLSYMRYPYWWCCKZNKYYG",
        "TTNGJEYKKZYTCJNMCYLQLYPYSFQRPZSLWBTGKJFYXJWZLTBNCXJJJJTXDTTSQZYCDXXHGCKBPHFFSSTYBGMXLPBYLLBHLX",
        "SMZMYJHSOJNGHDZQYKLGJHSGQZHXQGKXZZWYSCSCJXYEYXADZPMDSSMZJZQJYZCJJFWQJBDZBXGZNZCPWHWXHQKMWFBPBY",
        "DTJZZKXHYLYGXFPTYJYYZPSZLFCHMQSHGMXXSXJYQDCSBBQBEFSJYHWWGZKPYLQBGLDLCDTNMAYDDKSSNGYCSGXLYZAYPN",
        "PTSDKDYLHGYMYLCXPYCJNDQJWXQXFYYFJLEJPZRXCCQWQQSBZKYMGPLBMJRQCFLNYMYQMSQYRBCJTHZTQFRXQHXMQJCJLY",
        "QGJMSHZKBSWYEMYLTXFSYDXWLYCJQXSJNQBSCTYHBFTDCYZDJWYGHQFRXWCKQKXEBPTLPXJZSRMEBWHJLBJSLYYSMDXLCL",
        "QKXLHXJRZJMFQHXHWYWSBHTRXXGLHQHFNMGYKLDYXZPYLGGSMTCFBAJJZYLJTYANJGBJPLQGSZYQYAXBKYSECJSZNSLYZH",
        "ZXLZCGHPXZHZNYTDSBCJKDLZAYFFYDLEBBGQYZKXGLDNDNYSKJSHDLYXBCGHXYPKDJMMZNGMMCLGWZSZXZJFZNMLZZTHCS",
        "YDBDLLSCDDNLKJYKJSYCJLKWHQASDKNHCSGAGHDAASHTCPLCPQYBSZMPJLPCJOQLCDHJJYSPRCHNWJNLHLYYQYYWZPTCZG",
        "WWMZFFJQQQQYXACLBHKDJXDGMMYDJXZLLSYGXGKJRYWZWYCLZMSSJZLDBYDCFCXYHLXCHYZJQSQQAGMNYXPFRKSSBJLYXY",
        "SYGLNSCMHCWWMNZJJLXXHCHSYZSTTXRYCYXBYHCSMXJSZNPWGPXXTAYBGAJCXLYXDCCWZOCWKCCSBNHCPDYZNFCYYTYCKX",
        "KYBSQKKYTQQXFCMCHCYKELZQBSQYJQCCLMTHSYWHMKTLKJLYCXWHEQQHTQKZPQSQSCFYMMDMGBWHWLGSLLYSDLMLXPTHMJ",
        "HWLJZYHZJXKTXJLHXRSWLWZJCBXMHZQXSDZPSGFCSGLSXYMJSHXPJXWMYQKSMYPLRTHBXFTPMHYXLCHLHLZYLXGSSSSTCL",
        "SLDCLRPBHZHXYYFHBMGDMYCNQQWLQHJJCYWJZYEJJDHPBLQXTQKWHLCHQXAGTLXLJXMSLJHTZKZJECXJCJNMFBYCSFYWYB",
        "JZGNYSDZSQYRSLJPCLPWXSDWEJBJCBCNAYTWGMPAPCLYQPCLZXSBNMSGGFNZJJBZSFZYNTXHPLQKZCZWALSBCZJXSYZGWK",
        "YPSGXFZFCDKHJGXTLQFSGDSLQWZKXTMHSBGZMJZRGLYJBPMLMSXLZJQQHZYJCZYDJWFMJKLDDPMJEGXYHYLXHLQYQHKYCW",
        "CJMYYXNATJHYCCXZPCQLBZWWYTWBQCMLPMYRJCCCXFPZNZZLJPLXXYZTZLGDLTCKLYRZZGQTTJHHHJLJAXFGFJZSLCFDQZ",
        "LCLGJDJZSNZLLJPJQDCCLCJXMYZFTSXGCGSBRZXJQQCTZHGYQTJQQLZXJYLYLBCYAMCSTYLPDJBYREGKLZYZHLYSZQLZNW",
        "CZCLLWJQJJJKDGJZOLBBZPPGLGHTGZXYGHZMYCNQSYCYHBHGXKAMTXYXNBSKYZZGJZLQJTFCJXDYGJQJJPMGWGJJJPKQSB",
        "GBMMCJSSCLPQPDXCDYYKYPCJDDYYGYWRHJRTGZNYQLDKLJSZZGZQZJGDYKSHPZMTLCPWNJYFYZDJCNMWESCYGLBTZZGMSS",
        "LLYXYSXXBSJSBBSGGHFJLYPMZJNLYYWDQSHZXTYYWHMCYHYWDBXBTLMSYYYFSXJCBDXXLHJHFSSXZQHFZMZCZTQCXZXRTT",
        "DJHNRYZQQMTQDMMGNYDXMJGDXCDYZBFFALLZTDLTFXMXQZDNGWQDBDCZJDXBZGSQQDDJCMBKZFFXMKDMDSYYSZCMLJDSYN",
        "SPRSKMKMPCKLGTBQTFZSWTFGGLYPLLJZHGJJGYPZLTCSMCNBTJBQFKDHBYZGKPBBYMTDSSXTBNPDKLEYCJNYCDYKZTDHQH",
        "SYZSCTARLLTKZLGECLLKJLQJAQNBDKKGHPJTZQKSECSHALQFMMGJNLYJBBTMLYZXDXJPLDLPCQDHZYCBZSCZBZMSLJFLKR",
        "ZJSNFRGJHXPDHYJYBZGDLQCSEZGXLBLGYXTWMABCHECMWYJYZLLJJYHLGNDJLSLYGKDZPZXJYYZLWCXSZFGWYYDLYHCLJS",
        "CMBJHBLYZLYCBLYDPDQYSXQZBYTDKYXJYYCNRJMPDJGKLCLJBCTBJDDBBLBLCZQRPYXJCJLZCSHLTOLJNMDDDLNGKATHQH",
        "JHYKHEZNMSHRPHQQJCHGMFPRXHJGDYCHGHLYRZQLCYQJNZSQTKQJYMSZSWLCFQQQXYFGGYPTQWLMCRNFKKFSYYLQBMQAMM",
        "MYXCTPSHCPTXXZZSMPHPSHMCLMLDQFYQXSZYJDJJZZHQPDSZGLSTJBCKBXYQZJSGPSXQZQZRQTBDKYXZKHHGFLBCSMDLDG",
        "DZDBLZYYCXNNCSYBZBFGLZZXSWMSCCMQNJQSBDQSJTXXMBLTXZCLZSHZCXRQJGJYLXZFJPHYMZQQYDFQJJLZZNZJCDGZYG",
        "CTXMZYSCTLKPHTXHTLBJXJLXSCDQXCBBTJFQZFSLTJBTKQBXXJJLJCHCZDBZJDCZJDCPRNPQCJPFCZLCLZXZDMXMPHJSGZ",
        "GSZZQLYLWTJPFSYASMCJBTZYYCWMYTZSJJLJCQLWZMALBXYFBPNLSFHTGJWEJJXXGLLJSTGSHJQLZFKCGNNNSZFDEQFHBS",
        "AQTGYLBXMMYGSZLDYDQMJJRGBJTKGDHGKBLQKBDMBYLXWCXYTTYBKMRTJZXQJBHLMHMJJZMQASLDCYXYQDLQCAFYWYXQHZ",
        );
    public static function utf8_to_gbk($string)//编码转换,必须转换成GB2312字符,这里只是简单的判断并不是很准确,可以自己写一个.
    {
    if (mb_check_encoding($string,'gb2312'))
        return $string;
    if (function_exists('iconv'))
        return iconv("utf-8","gb2312//IGNORE",$string);
    return mb_convert_encoding($string,'gb2312','utf-8'); 
    }
    public static function conv($str)
    {
    $str = self::utf8_to_gbk($str);
    $len = strlen($str);
    $newStr = '';
    for($i=0; $i<$len ; ++$i)
    {
        $H = ord($str[$i]);
        $L = ord($str[$i+1]);
        //字符集非法
        if ($H < 0xB0 ||  $L < 0xA1 || $H > 0xF7 || $L == 0xFF)
        {
        $newStr .= $str[$i];
        continue;
        }
        if ($H < 0xD8)//($H >= 0xB0 && $H <=0xD7)//查询文字在一级汉字区(16-55)
        {
        $W = ($H << 8) | $L;
        foreach(self::$FirstTable as $key=>$value)
        {
            if ($W < $value)
            {
            $newStr .= self::$FirstLetter[$key];
            break;
            }
        }
        }
        else// if (H >= 0xD8 && H <= 0xF7)//查询中文在二级汉字区(56-87)
        $newStr .=self::$SecondTable[$H - 0xD8][$L-0xA1];
        ++$i;
    }
    return $newStr;
    }
}


echo zh2py::conv('妃');//F

Answer 2

这是你自己写的类么 网上有这方面的类的

追问

就是网上找的