php 中文转换拼音

方法一：根据ASCII码转换，GB2312库对多音字也无能为力。

    GB2312标准共收录6763个汉字，不在范围内的汉字是无法转换，如：中国前总理朱镕基的“镕”字。

    GB2312中对所收汉字进行了“分区”处理，每区含有94个汉字／符号。这种表示方式也称为区位码。

    01-09区为特殊符号。

    16-55区为一级汉字，按拼音排序。（3755个）

    56-87区为二级汉字，按部首／笔画排序。（3008个）

    10-15区及88-94区则未有编码。

    占用的码位是72*94=6768。其中有5个空位是D7FA-D7FE。所以实际共6763个汉字。其中一级汉字3755个，二级汉字3008个。而此类算法实际只能转换3755个汉字。

    优点：没有使用大文字库，文件相对较小，没有使用正则表达式，性能相对较高。支持首字母转换。

    缺点：没有在GB2312中收录的汉字无法转换，多音字无法识别。

    （如果对拼音转换要求不高的朋友，建议使用这个。）

    [php] view plaincopy

// 此类是根据ASCII码转换，GB2312库对多音字也无能为力。

// GB2312标准共收录6763个汉字，不在范围内的汉字是无法转换，如：中国前总理朱镕基的“镕”字。

class pinyin{

public static function utf8_to($s, $isfirst = false) {

return self::to(self::utf8_to_gb2312($s), $isfirst);

}

public static function utf8_to_gb2312($s) {

return iconv('UTF-8', 'GB2312//IGNORE', $s);

}

// 字符串必须为GB2312编码

public static function to($s, $isfirst = false) {

$res = '';

$len = strlen($s);

$pinyin_arr = self::get_pinyin_array();

for($i=0; $i<$len; $i++) {

$ascii = ord($s{$i});

if($ascii > 0x80) {

$ascii2 = ord($s{++$i});

$ascii = $ascii * 256 + $ascii2 - 65536;

}

if($ascii < 255 && $ascii > 0) {

if(($ascii >= 48 && $ascii <= 57) || ($ascii >= 97 && $ascii <= 122)) {

$res .= $s{$i}; // 0-9 a-z

}elseif($ascii >= 65 && $ascii <= 90) {

$res .= strtolower($s{$i}); // A-Z

}else{

$res .= '_';

}

}elseif($ascii < -20319 || $ascii > -10247) {

$res .= '_';

}else{

foreach($pinyin_arr as $py=>$asc) {

if($asc <= $ascii) {

$res .= $isfirst ? $py{0} : $py;

break;

}

}

}

}

return $res;

}

public static function to_first($s) {

$ascii = ord($s{0});

if($ascii > 0xE0) {

$s = self::utf8_to_gb2312($s{0}.$s{1}.$s{2});

}elseif($ascii < 0x80) {

if($ascii >= 65 && $ascii <= 90) {

return strtolower($s{0});

}elseif($ascii >= 97 && $ascii <= 122) {

return $s{0};

}else{

return false;

}

}

if(strlen($s) < 2) {

return false;

}

$asc = ord($s{0}) * 256 + ord($s{1}) - 65536;

if($asc>=-20319 && $asc<=-20284) return 'a';

if($asc>=-20283 && $asc<=-19776) return 'b';

if($asc>=-19775 && $asc<=-19219) return 'c';

if($asc>=-19218 && $asc<=-18711) return 'd';

if($asc>=-18710 && $asc<=-18527) return 'e';

if($asc>=-18526 && $asc<=-18240) return 'f';

if($asc>=-18239 && $asc<=-17923) return 'g';

if($asc>=-17922 && $asc<=-17418) return 'h';

if($asc>=-17417 && $asc<=-16475) return 'j';

if($asc>=-16474 && $asc<=-16213) return 'k';

if($asc>=-16212 && $asc<=-15641) return 'l';

if($asc>=-15640 && $asc<=-15166) return 'm';

if($asc>=-15165 && $asc<=-14923) return 'n';

if($asc>=-14922 && $asc<=-14915) return 'o';

if($asc>=-14914 && $asc<=-14631) return 'p';

if($asc>=-14630 && $asc<=-14150) return 'q';

if($asc>=-14149 && $asc<=-14091) return 'r';

if($asc>=-14090 && $asc<=-13319) return 's';

if($asc>=-13318 && $asc<=-12839) return 't';

if($asc>=-12838 && $asc<=-12557) return 'w';

if($asc>=-12556 && $asc<=-11848) return 'x';

if($asc>=-11847 && $asc<=-11056) return 'y';

if($asc>=-11055 && $asc<=-10247) return 'z';

return false;

}

public static function get_pinyin_array() {

static $py_arr;

if(isset($py_arr)) return $py_arr;

$k = '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';

$v = '-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';

$key = explode('|', $k);

$val = explode('|', $v);

$py_arr = array_combine($key, $val);

arsort($py_arr);

return $py_arr;

}

}

/*

var_dump(0xE0);

for($i=0; $i<=255; $i++) {

var_dump("$i :". chr($i));

}

*/

var_dump(pinyin::utf8_to('PHP汉字转拼音类'));

var_dump(pinyin::utf8_to('GB2312标准共收录6763个汉字，不在范围内的汉字是无法转换，如：中国前总理朱镕基的“镕”字。'));

var_dump(pinyin::utf8_to('`1234567890-=QWERTYUIOP[]ASDFGHJKL;ZXCVBNM,./abcdefghijklmnopqrstuvwxyz'));

var_dump(pinyin::utf8_to('PHP汉字转拼音类', 1));

var_dump(pinyin::utf8_to('GB2312标准共收录6763个汉字，不在范围内的汉字是无法转换，如：中国前总理朱镕基的“镕”字。', 1));

var_dump(pinyin::utf8_to('`1234567890-=QWERTYUIOP[]ASDFGHJKL;ZXCVBNM,./abcdefghijklmnopqrstuvwxyz', 1));

var_dump(pinyin::to_first('PHP汉字转拼音类'));

var_dump(pinyin::to_first('GB2312标准共收录6763个汉字，不在范围内的汉字是无法转换，如：中国前总理朱镕基的“镕”字。'));

var_dump(pinyin::to_first('▂`1234567890-=QWERTYUIOP[]ASDFGHJKL;ZXCVBNM,./abcdefghijklmnopqrstuvwxyz'));

?>

    方法二：根据拼音组合数组检索

    [php] view plaincopy

class pinyin{

private $d=array(

array("a",-20319),

array("ai",-20317),

array("an",-20304),

array("ang",-20295),

array("ao",-20292),

array("ba",-20283),

array("bai",-20265),

array("ban",-20257),

array("bang",-20242),

array("bao",-20230),

array("bei",-20051),

array("ben",-20036),

array("beng",-20032),

array("bi",-20026),

array("bian",-20002),

array("biao",-19990),

array("bie",-19986),

array("bin",-19982),

array("bing",-19976),

array("bo",-19805),

array("bu",-19784),

array("ca",-19775),

array("cai",-19774),

array("can",-19763),

array("cang",-19756),

array("cao",-19751),

array("ce",-19746),

array("ceng",-19741),

array("cha",-19739),

array("chai",-19728),

array("chan",-19725),

array("chang",-19715),

array("chao",-19540),

array("che",-19531),

array("chen",-19525),

array("cheng",-19515),

array("chi",-19500),

array("chong",-19484),

array("chou",-19479),

array("chu",-19467),

array("chuai",-19289),

array("chuan",-19288),

array("chuang",-19281),

array("chui",-19275),

array("chun",-19270),

array("chuo",-19263),

array("ci",-19261),

array("cong",-19249),

array("cou",-19243),

array("cu",-19242),

array("cuan",-19238),

array("cui",-19235),

array("cun",-19227),

array("cuo",-19224),

array("da",-19218),

array("dai",-19212),

array("dan",-19038),

array("dang",-19023),

array("dao",-19018),

array("de",-19006),

array("deng",-19003),

array("di",-18996),

array("dian",-18977),

array("diao",-18961),

array("die",-18952),

array("ding",-18783),

array("diu",-18774),

array("dong",-18773),

array("dou",-18763),

array("du",-18756),

array("duan",-18741),

array("dui",-18735),

array("dun",-18731),

array("duo",-18722),

array("e",-18710),

array("en",-18697),

array("er",-18696),

array("fa",-18526),

array("fan",-18518),

array("fang",-18501),

array("fei",-18490),

array("fen",-18478),

array("feng",-18463),

array("fo",-18448),

array("fou",-18447),

array("fu",-18446),

array("ga",-18239),

array("gai",-18237),

array("gan",-18231),

array("gang",-18220),

array("gao",-18211),

array("ge",-18201),

array("gei",-18184),

array("gen",-18183),

array("geng",-18181),

array("gong",-18012),

array("gou",-17997),

array("gu",-17988),

array("gua",-17970),

array("guai",-17964),

array("guan",-17961),

array("guang",-17950),

array("gui",-17947),

array("gun",-17931),

array("guo",-17928),

array("ha",-17922),

array("hai",-17759),

array("han",-17752),

array("hang",-17733),

array("hao",-17730),

array("he",-17721),

array("hei",-17703),

array("hen",-17701),

array("heng",-17697),

array("hong",-17692),

array("hou",-17683),

array("hu",-17676),

array("hua",-17496),

array("huai",-17487),

array("huan",-17482),

array("huang",-17468),

array("hui",-17454),

array("hun",-17433),

array("huo",-17427),

array("ji",-17417),

array("jia",-17202),

array("jian",-17185),

array("jiang",-16983),

array("jiao",-16970),

array("jie",-16942),

array("jin",-16915),

array("jing",-16733),

array("jiong",-16708),

array("jiu",-16706),

array("ju",-16689),

array("juan",-16664),

array("jue",-16657),

array("jun",-16647),

array("ka",-16474),

array("kai",-16470),

array("kan",-16465),

array("kang",-16459),

array("kao",-16452),

array("ke",-16448),

array("ken",-16433),

array("keng",-16429),

array("kong",-16427),

array("kou",-16423),

array("ku",-16419),

array("kua",-16412),

array("kuai",-16407),

array("kuan",-16403),

array("kuang",-16401),

array("kui",-16393),

array("kun",-16220),

array("kuo",-16216),

array("la",-16212),

array("lai",-16205),

array("lan",-16202),

array("lang",-16187),

array("lao",-16180),

array("le",-16171),

array("lei",-16169),

array("leng",-16158),

array("li",-16155),

array("lia",-15959),

array("lian",-15958),

array("liang",-15944),

array("liao",-15933),

array("lie",-15920),

array("lin",-15915),

array("ling",-15903),

array("liu",-15889),

array("long",-15878),

array("lou",-15707),

array("lu",-15701),

array("lv",-15681),

array("luan",-15667),

array("lue",-15661),

array("lun",-15659),

array("luo",-15652),

array("ma",-15640),

array("mai",-15631),

array("man",-15625),

array("mang",-15454),

array("mao",-15448),

array("me",-15436),

array("mei",-15435),

array("men",-15419),

array("meng",-15416),

array("mi",-15408),

array("mian",-15394),

array("miao",-15385),

array("mie",-15377),

array("min",-15375),

array("ming",-15369),

array("miu",-15363),

array("mo",-15362),

array("mou",-15183),

array("mu",-15180),

array("na",-15165),

array("nai",-15158),

array("nan",-15153),

array("nang",-15150),

array("nao",-15149),

array("ne",-15144),

array("nei",-15143),

array("nen",-15141),

array("neng",-15140),

array("ni",-15139),

array("nian",-15128),

array("niang",-15121),

array("niao",-15119),

array("nie",-15117),

array("nin",-15110),

array("ning",-15109),

array("niu",-14941),

array("nong",-14937),

array("nu",-14933),

array("nv",-14930),

array("nuan",-14929),

array("nue",-14928),

array("nuo",-14926),

array("o",-14922),

array("ou",-14921),

array("pa",-14914),

array("pai",-14908),

array("pan",-14902),

array("pang",-14894),

array("pao",-14889),

array("pei",-14882),

array("pen",-14873),

array("peng",-14871),

array("pi",-14857),

array("pian",-14678),

array("piao",-14674),

array("pie",-14670),

array("pin",-14668),

array("ping",-14663),

array("po",-14654),

array("pu",-14645),

array("qi",-14630),

array("qia",-14594),

array("qian",-14429),

array("qiang",-14407),

array("qiao",-14399),

array("qie",-14384),

array("qin",-14379),

array("qing",-14368),

array("qiong",-14355),

array("qiu",-14353),

array("qu",-14345),

array("quan",-14170),

array("que",-14159),

array("qun",-14151),

array("ran",-14149),

array("rang",-14145),

array("rao",-14140),

array("re",-14137),

array("ren",-14135),

array("reng",-14125),

array("ri",-14123),

array("rong",-14122),

array("rou",-14112),

array("ru",-14109),

array("ruan",-14099),

array("rui",-14097),

array("run",-14094),

array("ruo",-14092),

array("sa",-14090),

array("sai",-14087),

array("san",-14083),

array("sang",-13917),

array("sao",-13914),

array("se",-13910),

array("sen",-13907),

array("seng",-13906),

array("sha",-13905),

array("shai",-13896),

array("shan",-13894),

array("shang",-13878),

array("shao",-13870),

array("she",-13859),

array("shen",-13847),

array("sheng",-13831),

array("shi",-13658),

array("shou",-13611),

array("shu",-13601),

array("shua",-13406),

array("shuai",-13404),

array("shuan",-13400),

array("shuang",-13398),

array("shui",-13395),

array("shun",-13391),

array("shuo",-13387),

array("si",-13383),

array("song",-13367),

array("sou",-13359),

array("su",-13356),

array("suan",-13343),

array("sui",-13340),

array("sun",-13329),

array("suo",-13326),

array("ta",-13318),

array("tai",-13147),

array("tan",-13138),

array("tang",-13120),

array("tao",-13107),

array("te",-13096),

array("teng",-13095),

array("ti",-13091),

array("tian",-13076),

array("tiao",-13068),

array("tie",-13063),

array("ting",-13060),

array("tong",-12888),

array("tou",-12875),

array("tu",-12871),

array("tuan",-12860),

array("tui",-12858),

array("tun",-12852),

array("tuo",-12849),

array("wa",-12838),

array("wai",-12831),

array("wan",-12829),

array("wang",-12812),

array("wei",-12802),

array("wen",-12607),

array("weng",-12597),

array("wo",-12594),

array("wu",-12585),

array("xi",-12556),

array("xia",-12359),

array("xian",-12346),

array("xiang",-12320),

array("xiao",-12300),

array("xie",-12120),

array("xin",-12099),

array("xing",-12089),

array("xiong",-12074),

array("xiu",-12067),

array("xu",-12058),

array("xuan",-12039),

array("xue",-11867),

array("xun",-11861),

array("ya",-11847),

array("yan",-11831),

array("yang",-11798),

array("yao",-11781),

array("ye",-11604),

array("yi",-11589),

array("yin",-11536),

array("ying",-11358),

array("yo",-11340),

array("yong",-11339),

array("you",-11324),

array("yu",-11303),

array("yuan",-11097),

array("yue",-11077),

array("yun",-11067),

array("za",-11055),

array("zai",-11052),

array("zan",-11045),

array("zang",-11041),

array("zao",-11038),

array("ze",-11024),

array("zei",-11020),

array("zen",-11019),

array("zeng",-11018),

array("zha",-11014),

array("zhai",-10838),

array("zhan",-10832),

array("zhang",-10815),

array("zhao",-10800),

array("zhe",-10790),

array("zhen",-10780),

array("zheng",-10764),

array("zhi",-10587),

array("zhong",-10544),

array("zhou",-10533),

array("zhu",-10519),

array("zhua",-10331),

array("zhuai",-10329),

array("zhuan",-10328),

array("zhuang",-10322),

array("zhui",-10315),

array("zhun",-10309),

array("zhuo",-10307),

array("zi",-10296),

array("zong",-10281),

array("zou",-10274),

array("zu",-10270),

array("zuan",-10262),

array("zui",-10260),

array("zun",-10256),

array("zuo",-10254)

);

public function get_pinyin($str,$charset="utf-8"){

if($charset!="gb2312"){

$str=$this->set_char($str,$charset,"gb2312");

$str=$this->c($str);

$str=$this->set_char($str,"gb2312",$charset);

}else{

$str=$this->c($str);

}

return $str;

}

private function set_char($str,$charset="utf-8",$charset_out="gb2312"){

if(function_exists('iconv')){

$str=iconv($charset,$charset_out,$str);

}elseif(function_exists("mb_convert_encoding")){

$str=mb_convert_encoding($str,$charset_out,$charset);

}

return $str;

}

private function g($num){

if($num>0 && $num<160){

return chr($num);

}elseif($num<-20319||$num>-10247){

return "";

}else{

for($i=count($this->d)-1;$i>=0;$i--){

if($this->d[$i][1]<=$num) break;

}

return $this->d[$i][0];

}

}

private function c($str){

$ret="";

for($i=0;$i

$p=ord(substr($str,$i,1));

if($p>160){

$q=ord(substr($str,++$i,1));

$p=$p*256+$q-65536;

}

$ret.=$this->g($p);

}

return $ret;

}

}

function get_pinyin($str,$charset="utf-8"){

$pinyin=new pinyin();

return $pinyin->get_pinyin($str,$charset);

}

?>

    PHP取得汉字(中文)：

    [php] view plaincopy

function getChinese($str,$charset='utf8'){

if($charset=='gb2312'){

if(!preg_match_all("/^[".chr(0xa1)."-".chr(0xff)."]+/",$str,$match)){

return false;

}

return implode('',$match[0]);

}

//

if($charset=='utf8'){

if(!preg_match_all("/[\x{4e00}-\x{9fa5}]+/u",$str,$match)){

return false;

}

return implode('',$match[0]);

}

return false;

}PHP取得汉字拼音字母数组标点：

    [php] view plaincopy

//取得字符串中汉字字符数字下划线和短连接符、逗号、句号、分号、冒号、书名号、问号等非特殊字符

function getChinese($str,$charset='utf8'){

if($charset=='gb2312'){

if(!preg_match_all("/^[".chr(0xa1)."-".chr(0xff)."A-Za-z0-9_\-\,\。\，\.\；\;\：\:\《\》\？\?\%\%\！\!\~\~]+/",$str,$match)){

return false;

}

return implode('',$match[0]);

}

if($charset=='utf8'){

if(!preg_match_all("/[\x{4e00}-\x{9fa5}A-Za-z0-9_\-\,\。\，\.\；\;\：\:\《\》\？\?\%\%\！\!\~\~]+/u",$str,$match)){

return false;

}

return implode('',$match[0]);

}

return false;

}