在做项目的时候我们有时会需要提取字符串的首字母
先来看第一种只提取第一个字符的首字母
我们只要在tp的公众函数库中写这样一个方法
function Getzimu($str)
{
$str= iconv("UTF-8","gb2312", $str);//如果程序是gbk的，此行就要注释掉
if (preg_match("/^[\x7f-\xff]/", $str)) //判断是否全是中文
{
$fchar=ord($str{0});
if($fchar>=ord("A") and $fchar<=ord("z") )return strtoupper($str{0});
$a = $str;
$val=ord($a{0})*256+ord($a{1})-65536;
if($val>=-20319 and $val<=-20284)return "A";
if($val>=-20283 and $val<=-19776)return "B";
if($val>=-19775 and $val<=-19219)return "C";
if($val>=-19218 and $val<=-18711)return "D";
if($val>=-18710 and $val<=-18527)return "E";
if($val>=-18526 and $val<=-18240)return "F";
if($val>=-18239 and $val<=-17923)return "G";
if($val>=-17922 and $val<=-17418)return "H";
if($val>=-17417 and $val<=-16475)return "J";
if($val>=-16474 and $val<=-16213)return "K";
if($val>=-16212 and $val<=-15641)return "L";
if($val>=-15640 and $val<=-15166)return "M";
if($val>=-15165 and $val<=-14923)return "N";
if($val>=-14922 and $val<=-14915)return "O";
if($val>=-14914 and $val<=-14631)return "P";
if($val>=-14630 and $val<=-14150)return "Q";
if($val>=-14149 and $val<=-14091)return "R";
if($val>=-14090 and $val<=-13319)return "S";
if($val>=-13318 and $val<=-12839)return "T";
if($val>=-12838 and $val<=-12557)return "W";
if($val>=-12556 and $val<=-11848)return "X";
if($val>=-11847 and $val<=-11056)return "Y";
if($val>=-11055 and $val<=-10247)return "Z";
}
else
{
return false;
}
}就可以了
只要在控制器中
$is = '你大爷的';
echo Getzimu($is);die;
就会输出一个N
接下来我们看输出多个字符的首字母
同样的我们只要在公共函数库中写两个方法就行
/**
* 中文转换到拼音(每次处理一个字符)
* @param number $iWORD 待处理字符双字节
* @return string 拼音
*/
function zh2py($iWORD) {
//拼音字符转换图
$_aMaps = 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,'GOU'=>-18447,'GU'=>-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,'PEO'=>-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
);
if($iWORD>0 && $iWORD<160 ) {
return chr($iWORD);
} elseif ($iWORD<-20319||$iWORD>-10247) {
return '';
} else {
foreach ($_aMaps as $py => $code) {
if($code > $iWORD) break;
$result = $py;
}
return $result;
}
}
/**
* 将中文编码成拼音
* @param string $utf8Data utf8字符集数据
* @param string $sRetFormat 返回格式 [head:首字母|all:全拼音]
* @return string
*/
function encode($utf8Data, $sRetFormat='head'){
$sGBK = iconv('UTF-8', 'GBK', $utf8Data);
$aBuf = array();
for ($i=0, $iLoop=strlen($sGBK); $i<$iLoop; $i++) {
$iChr = ord($sGBK{$i});
if ($iChr>160)
$iChr = ($iChr<<8) + ord($sGBK{++$i}) - 65536;
if ('head' === $sRetFormat)
$aBuf[] = substr(zh2py($iChr),0,1);
else
$aBuf[] = zh2py($iChr);
}
if ('head' === $sRetFormat)
return implode('', $aBuf);
else
return implode(' ', $aBuf);
}
在控制其中输入
$is = '你大爷的';
echo encode($is);die;
就会输出NDYD是不是很简单，点个赞收藏啊一下下楼；
