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本文和大家分享一下汉字转拼音问题。
以发现很多股票软件都有这问题，比如zgyh 出来的不是中国银行，而是找不到，
这是因为，中国银行的 “行” 查出来读的是 "xing" 。我篇文章我只是提供了一个原始的转换方法，就是查表。
和你以前看过的算法可能不一样的是，我加了一个二分查找，我看到的一个开源的解决方案是顺序查找的。
关于，多音字问题，我只有一个小规模的多音字表，从所有股票名称里面纠正过来的。解决方案是这样的：在查找拼音的时候，
查找一下这个字是否在多音字表里面，如果是，那么查找前后组成的词，来决定读什么。
Code [http://www.xueit.com]<?php /** * 初始化 * * @param string $file 拼音代码对应表 * @return array 把这个对应表映射成array的格式 */ function pinyin_init($file) { $pinyin = file($file); if (empty($pinyin)) { throw new Exception("load pinyin table error."); } foreach ($pinyin as $k => $item) { $item = explode("\t", $item); $item[0] = trim($item[0]); $item[1] = (int)trim($item[1]); $pinyin[$k] = $item; } $pinyin[] = array('', -10248); //最后一个拼音的妈是 -10247 return $pinyin; } /** * 查找一个字符串中，中文字符部分的拼音 * * @param array $pingyin * @param string $str 字符串 * @param string $in_encode 字符串的编码 * @return array */ function pingyin_get($pingyin, $str, $in_encode = 'gb2312') { if (strtolower($in_encode) != 'gb2312') { $str = iconv($in_encode, 'gb2312', $str); if (!$str) { throw new Exception('invalid input string.'); } } $pinyin_arr = array(); $len = strlen($str); for ($i = 0; $i < $len; $i ) { if ($i == $len -1) break; if (($code = pinyin_getcode_($str[$i], $str[$i 1])) != false) { $i ; if (($py = pinyin_find_($pingyin, $code)) !== false) { $pinyin_arr[substr($str, $i - 1 , 2)] = $py; } } } return $pinyin_arr; } /** * 内部函数，通过拼音码查找汉字 * * @param array $pingyin * @param int $code * @return string/false */ function pinyin_find_($pingyin, $code) { $start = 0; $count = count($pingyin) - 1; $end = $count; if ($code < $pingyin[0][1] || $code >= $pingyin[$end][1]) { //no found. return false; } while ($start <= $end) { $mid = (int)($start ($end - $start)/2); if ($mid == $count) { //正常情况下，应该是永远都不会执行到这里，但是为了逻辑上清晰点，还是决定写上 return $pingyin[$mid - 1][0]; } else if ($code >= $pingyin[$mid][1] && $code < $pingyin[$mid 1][1]) { return $pingyin[$mid][0]; } else if ($code >= $pingyin[$mid 1][1]) { $start = $mid 1; } else { $end = $mid - 1; } } return false; } /** * 内部函数，通过汉字的第一个字节 和 第二个字节，得到查找的code * * @param char $ch1 * @param char $ch2 * @return int */ function pinyin_getcode_($ch1, $ch2) { $num1 = ord($ch1); $num2 = ord($ch2); if ($num1 > 159 && $num1 < 248) { return $num1 * 256 $num2 - 65536; } return false; } /** * 基本配置信息 */ define("CURRENT_PATH", dirname(__FILE__)); $pingin_file = CURRENT_PATH . "/gb-pinyin.table"; $pinyin = pinyin_init($pingin_file); $py = pingyin_get($pinyin, "中国银行", 'utf-8'); echo iconv('gb2312', 'utf-8', print_r($py, true)); echo implode("'", $py); ?>
拼音表如下：
Code [http://www.xueit.com]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
