如何取得汉字字符的拼音首字母？

Question

用php和别的语言没有大的区别,具体思路为：
 1.对应汉字库文件如常用的hzk16，自己建议一个拼音首字母文件。
 2.根据输入的汉字查出其区位，然后定位得到其首字母。
 3.对于生僻字，可在字库文件的空白区内直接指定其字头。
 我有一个字库文件和对应的处理文件源码（foxpro版），如需要可发给你参考。---------------------------------
 诚、义、礼、信

Answer 1

给你个对照表，右边的数字是对应拼音的汉字GB码的开始值，你该知道后面的情节了吧：$pinyin_table = 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
//max = -10247
);

Answer 2

skywatcher (天空守望者) 程序挺快的http://skywatcher.51.net/sw_work.php挺快的  您去请教她吧

Answer 3

地址为：
http://skywatcher.51.net/pinyin/index.php确实比较酷～～