php根据汉字获取拼音（php基于拼音搜索实现原理）

代码一：获取字符串汉字首字母，兼容GBK和UTF-8

function  getfirstchar( $s0 ){    //获取单个汉字拼音首字母。注意:此处不要纠结。汉字拼音是没有以U和V开头的
    $fchar  = ord( $s0 {0});
    if ( $fchar  >= ord( "A" )  and  $fchar  <= ord( "z" ) ) return  strtoupper ( $s0 {0});
    $s1  = iconv( "UTF-8" , "gb2312" ,  $s0 );
    $s2  = iconv( "gb2312" , "UTF-8" ,  $s1 );
    if ( $s2  ==  $s0 ){ $s  =  $s1 ;} else { $s  =  $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  >= -17922  and  $asc  <= -17418)  return  "I" ;
    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;
    //return $s0;
}
function  pinyin_long( $zh ){   //获取整条字符串汉字拼音首字母
    $ret  =  "" ;
    $s1  = iconv( "UTF-8" , "gb2312" ,  $zh );
    $s2  = iconv( "gb2312" , "UTF-8" ,  $s1 );
    if ( $s2  ==  $zh ){ $zh  =  $s1 ;}
    for ( $i  = 0;  $i  <  strlen ( $zh );  $i ++){
        $s1  =  substr ( $zh , $i ,1);
        $p  = ord( $s1 );
        if ( $p  > 160){
            $s2  =  substr ( $zh , $i ++,2);
            $ret  .= getfirstchar( $s2 );
        } else {
            $ret  .=  $s1 ;
        }
    }
    return  $ret ;
}
echo  pinyin_long( '*《，@#$123HAHadf一年后' );
?>

 

输出：

代码二：获取字符串全拼，仅支持GBK

 

class  ChineseSpell { //注意仅支持：GBK，故传入参数前须转码
    /**
    * @var array $chineseSpellList 拼音编码对应表
    * @access private
    */
    private  $chineseSpellList  =  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'