PHP汉字转拼音，获取首字母

<?phpclass Pinyin{ private $_outEncoding = "GB2312"; public function getPinyin($str, $pix = ' ', $code = 'gb2312') { $_DataKey = "a|ai|an|ang|ao|ba|bai|ban|bang|bao|bei|ben|beng|bi|bian|biao|bie|bin|bing|bo|bu|ca|cai|can|cang|cao|ce|ceng|cha" . "|chai|chan|chang|chao|che|chen|cheng|chi|chong|chou|chu|chuai|chuan|chuang|chui|chun|chuo|ci|cong|cou|cu|" . "cuan|cui|cun|cuo|da|dai|dan|dang|dao|de|deng|di|dian|diao|die|ding|diu|dong|dou|du|duan|dui|dun|duo|e|en|er" . "|fa|fan|fang|fei|fen|feng|fo|fou|fu|ga|gai|gan|gang|gao|ge|gei|gen|geng|gong|gou|gu|gua|guai|guan|guang|gui" . "|gun|guo|ha|hai|han|hang|hao|he|hei|hen|heng|hong|hou|hu|hua|huai|huan|huang|hui|hun|huo|ji|jia|jian|jiang" . "|jiao|jie|jin|jing|jiong|jiu|ju|juan|jue|jun|ka|kai|kan|kang|kao|ke|ken|keng|kong|kou|ku|kua|kuai|kuan|kuang" . "|kui|kun|kuo|la|lai|lan|lang|lao|le|lei|leng|li|lia|lian|liang|liao|lie|lin|ling|liu|long|lou|lu|lv|luan|lue" . "|lun|luo|ma|mai|man|mang|mao|me|mei|men|meng|mi|mian|miao|mie|min|ming|miu|mo|mou|mu|na|nai|nan|nang|nao|ne" . "|nei|nen|neng|ni|nian|niang|niao|nie|nin|ning|niu|nong|nu|nv|nuan|nue|nuo|o|ou|pa|pai|pan|pang|pao|pei|pen" . "|peng|pi|pian|piao|pie|pin|ping|po|pu|qi|qia|qian|qiang|qiao|qie|qin|qing|qiong|qiu|qu|quan|que|qun|ran|rang" . "|rao|re|ren|reng|ri|rong|rou|ru|ruan|rui|run|ruo|sa|sai|san|sang|sao|se|sen|seng|sha|shai|shan|shang|shao|" . "she|shen|sheng|shi|shou|shu|shua|shuai|shuan|shuang|shui|shun|shuo|si|song|sou|su|suan|sui|sun|suo|ta|tai|" . "tan|tang|tao|te|teng|ti|tian|tiao|tie|ting|tong|tou|tu|tuan|tui|tun|tuo|wa|wai|wan|wang|wei|wen|weng|wo|wu" . "|xi|xia|xian|xiang|xiao|xie|xin|xing|xiong|xiu|xu|xuan|xue|xun|ya|yan|yang|yao|ye|yi|yin|ying|yo|yong|you" . "|yu|yuan|yue|yun|za|zai|zan|zang|zao|ze|zei|zen|zeng|zha|zhai|zhan|zhang|zhao|zhe|zhen|zheng|zhi|zhong|" . "zhou|zhu|zhua|zhuai|zhuan|zhuang|zhui|zhun|zhuo|zi|zong|zou|zu|zuan|zui|zun|zuo"; $_DataValue = "-20319|-20317|-20304|-20295|-20292|-20283|-20265|-20257|-20242|-20230|-20051|-20036|-20032|-20026|-20002|-19990" . "|-19986|-19982|-19976|-19805|-19784|-19775|-19774|-19763|-19756|-19751|-19746|-19741|-19739|-19728|-19725" . "|-19715|-19540|-19531|-19525|-19515|-19500|-19484|-19479|-19467|-19289|-19288|-19281|-19275|-19270|-19263" . "|-19261|-19249|-19243|-19242|-19238|-19235|-19227|-19224|-19218|-19212|-19038|-19023|-19018|-19006|-19003" . "|-18996|-18977|-18961|-18952|-18783|-18774|-18773|-18763|-18756|-18741|-18735|-18731|-18722|-18710|-18697" . "|-18696|-18526|-18518|-18501|-18490|-18478|-18463|-18448|-18447|-18446|-18239|-18237|-18231|-18220|-18211" . "|-18201|-18184|-18183|-18181|-18012|-17997|-17988|-17970|-17964|-17961|-17950|-17947|-17931|-17928|-17922" . "|-17759|-17752|-17733|-17730|-17721|-17703|-17701|-17697|-17692|-17683|-17676|-17496|-17487|-17482|-17468" . "|-17454|-17433|-17427|-17417|-17202|-17185|-16983|-16970|-16942|-16915|-16733|-16708|-16706|-16689|-16664" . "|-16657|-16647|-16474|-16470|-16465|-16459|-16452|-16448|-16433|-16429|-16427|-16423|-16419|-16412|-16407" . "|-16403|-16401|-16393|-16220|-16216|-16212|-16205|-16202|-16187|-16180|-16171|-16169|-16158|-16155|-15959" . "|-15958|-15944|-15933|-15920|-15915|-15903|-15889|-15878|-15707|-15701|-15681|-15667|-15661|-15659|-15652" . "|-15640|-15631|-15625|-15454|-15448|-15436|-15435|-15419|-15416|-15408|-15394|-15385|-15377|-15375|-15369" . "|-15363|-15362|-15183|-15180|-15165|-15158|-15153|-15150|-15149|-15144|-15143|-15141|-15140|-15139|-15128" . "|-15121|-15119|-15117|-15110|-15109|-14941|-14937|-14933|-14930|-14929|-14928|-14926|-14922|-14921|-14914" . "|-14908|-14902|-14894|-14889|-14882|-14873|-14871|-14857|-14678|-14674|-14670|-14668|-14663|-14654|-14645" . "|-14630|-14594|-14429|-14407|-14399|-14384|-14379|-14368|-14355|-14353|-14345|-14170|-14159|-14151|-14149" . "|-14145|-14140|-14137|-14135|-14125|-14123|-14122|-14112|-14109|-14099|-14097|-14094|-14092|-14090|-14087" . "|-14083|-13917|-13914|-13910|-13907|-13906|-13905|-13896|-13894|-13878|-13870|-13859|-13847|-13831|-13658" . "|-13611|-13601|-13406|-13404|-13400|-13398|-13395|-13391|-13387|-13383|-13367|-13359|-13356|-13343|-13340" . "|-13329|-13326|-13318|-13147|-13138|-13120|-13107|-13096|-13095|-13091|-13076|-13068|-13063|-13060|-12888" . "|-12875|-12871|-12860|-12858|-12852|-12849|-12838|-12831|-12829|-12812|-12802|-12607|-12597|-12594|-12585" . "|-12556|-12359|-12346|-12320|-12300|-12120|-12099|-12089|-12074|-12067|-12058|-12039|-11867|-11861|-11847" . "|-11831|-11798|-11781|-11604|-11589|-11536|-11358|-11340|-11339|-11324|-11303|-11097|-11077|-11067|-11055" . "|-11052|-11045|-11041|-11038|-11024|-11020|-11019|-11018|-11014|-10838|-10832|-10815|-10800|-10790|-10780" . "|-10764|-10587|-10544|-10533|-10519|-10331|-10329|-10328|-10322|-10315|-10309|-10307|-10296|-10281|-10274" . "|-10270|-10262|-10260|-10256|-10254"; $_TDataKey = explode('|', $_DataKey); $_TDataValue = explode('|', $_DataValue); $data = (PHP_VERSION >= '5.0') ? array_combine($_TDataKey, $_TDataValue) : $this->_Array_Combine($_TDataKey, $_TDataValue); arsort($data); reset($data); $str = $this->safe_encoding($str); $_Res = ''; for ($i = 0; $i < strlen($str); $i ) { $_P = ord(substr($str, $i, 1)); if ($_P > 160) { $_Q = ord(substr($str, $i, 1)); $_P = $_P * 256 $_Q - 65536; } $_Res .= $this->_Pinyin($_P, $data) . $pix; } return preg_replace("/[^a-z0-9" . $pix . "]*/", '', $_Res); } private function _Pinyin($_Num, $_Data) { if ($_Num > 0 && $_Num < 160) return chr($_Num); elseif ($_Num < -20319 || $_Num > -10247) return ''; else { foreach ($_Data as $k => $v) { if ($v <= $_Num) break; } return $k; } } public function getFirstChar($str = '') { if (!$str) return null; $fchar = ord($str{0}); if ($fchar >= ord("A") and $fchar <= ord("z")) return strtoupper($str{0}); $s = $this->safe_encoding($str); $asc = ord($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 $asc <= -10247) return "Z"; return null; } public function safe_encoding($string) { $encoding = "UTF-8"; for ($i = 0; $i < strlen($string); $i ) { if (ord($string{$i}) < 128) continue; if ((ord($string{$i}) & 224) == 224) { //第一个字节判断通过 $char = $string{ $i}; if ((ord($char) & 128) == 128) { //第二个字节判断通过 $char = $string{ $i}; if ((ord($char) & 128) == 128) { $encoding = "UTF-8"; break; } } } if ((ord($string{$i}) & 192) == 192) { //第一个字节判断通过 $char = $string{ $i}; if ((ord($char) & 128) == 128) { //第二个字节判断通过 $encoding = "GB2312"; break; } } } if (strtoupper($encoding) == strtoupper($this->_outEncoding)) return $string; else return iconv($encoding, $this->_outEncoding, $string); } private function _Array_Combine($_Arr1, $_Arr2) { for ($i = 0; $i < count($_Arr1); $i ) $_Res [$_Arr1 [$i]] = $_Arr2 [$i]; return $_Res; } public function getWordsFirstChar($str = '') { $strLen = strlen($str); if(3 == $strLen) { return $this->getFirstChar($str); } $fristWord = ''; for ($i = 3; $i <= $strLen; $i = 3) { $strItem = substr($str, $i-3, $i); $fristWord .= $this->getFirstChar($strItem); } return $fristWord; }}