recode_string()
(PHP 4, PHP 5, PHP 7 < 7.4.0)
根据重新编码请求重新编码字符串t
说明
recode_string(string $request,string $string): string
Recode the string$stringaccording to the recode request$request.
参数
- $request
The desired recode request type
- $string
The string to be recoded
返回值
Returns the recoded string or FALSE
, if unable to perform the recode request.
范例
Basic recode_string() example
<?php echo recode_string("us..flat", "The following character has a diacritical mark: á"); ?>
注释
A simple recode request may be "lat1..iso646-de".
参见
- The GNU Recode documentation of your installation for detailed instructions about recode requests.
Here's how to convert romaji to katakana/hiragana with PHP (transliterating Japanese text). The function Romaji2Kana($s) will return with keys 'hira' and 'kata' that respectively contain the hiragana and katakana versions of the given string in UTF-8 encoding. <?php // eucjp: 2421; unicode: 3041 define('HIRATABLE', 'a A i I u U e E o O KAGAKIGIKUGUKEGEKOGOSAZASIZISUZUSEZESOZO'. 'TADATIDItuTUDUTEDETODONANINUNENOHABAPAHIBIPIHUBUPUHEBEPEHOBOPO'. 'MAMIMUMEMOyaYAyuYUyoYORARIRUREROwaWAWIWEWOn '); // eucjp: 2521; unicode: 30A1 define('KATATABLE', 'a A i I u U e E o O KAGAKIGIKUGUKEGEKOGOSAZASIZISUZUSEZESOZO'. 'TADATIDItuTUDUTEDETODONANINUNENOHABAPAHIBIPIHUBUPUHEBEPEHOBOPO'. 'MAMIMUMEMOyaYAyuYUyoYORARIRUREROwaWAWIWEWOn VUkake'); function HiraTrans($s) { #print "trans('$s')\n"; $pos = strpos(HIRATABLE, $s); if($pos===false) return 0xA1BC; // ^ return 0xA4A1 + $pos/2; } function KataTrans($s) { $pos = strpos(KATATABLE, $s); if($pos===false) return 0xA1BC; // ^ return 0xA5A1 + $pos/2; } function Romaji2Kana($s) { $s = strtoupper(str_replace( Array('shi', 'sh', 'fu', 'chi', 'ch', 'tsu', 'dz', 'l', '-', 'â', 'î', 'û', 'ê', 'ô', 'ā', 'ī', 'ū', 'ē', 'ō'), Array('si', 'sy', 'hu', 'ti', 'ty', 'tu', 'j', 'r', '^', 'a^', 'i^', 'u^', 'e^', 'o^', 'a^', 'i^', 'u^', 'e^', 'o^'), $s)); // FO -> FUxo $s = preg_replace('@F([AIOE])@e', '"HU".strtolower("\1")', $s); // VO -> VUxo $s = preg_replace('@V([AIUEO])@e', '"VU".strtolower("\1")', $s); // KYA -> KYya $s = preg_replace('@([KSTNHMRGZBPD])Y([AUO])@e', '"\1Iy".strtolower("\2")', $s); // XTU -> tu (make them actually small) $s = preg_replace('@X(TU|Y[AUO]|[AIUEO]|KA|KE)@e', 'strtolower("\1")', $s); // KKO -> tuKO $s = preg_replace('@([KSTHMRYWGZBPDV]{2,})@e', 'str_pad("",2*strlen("\1")-2,"tu").substr("\1",0,1)', $s); // N -> n (but not NO -> nO) // At this point, N' will work correctly $s = preg_replace('@N(?![AIUEO])@', 'n', $s); // Unrecognized characters off $s = eregi_replace('[^^VAIUEOKSTNHMYRWGZBPD]', '', $s); $pat = '@([AIUEOnaiueo^]|..)@e'; $rec = 'EUCJP..UTF8'; return Array('hira' => recode_string($rec,preg_replace($pat, 'pack("n", HiraTrans("\1"))', $s)), 'kata' => recode_string($rec,preg_replace($pat, 'pack("n", KataTrans("\1"))', $s))); } print_r( Romaji2Kana('konnichiha') ); ?> Note: Due to technical limitations in the manual pages, there are two errors in this code: - Some characters in the first str_replace may appear wrong in some php.net mirrors. It supposed to contain aiueo with circumflex and aiueo with macron. - The strings in the defines should be constant, not appendage expressions. (Line length limitation) -Joel Yliluoma
I came across a bug (and workaround) when using recode_string. When converting from utf-8 to iso-2022-jp, it would always return an empty string (although it would work fine for conversions from html to utf8). Converting with recode on the command line worked fine, which was odd. I noticed that if I specified "-v" on the command line, recode stated that it was using libiconv to do the conversion. Using "iconv" instead of recode got the right results. i.e. Works: $str = recode_string("html..utf-8", "日本語"); // Unicode for "Japanese" Doesn't work: $str = recode_string("utf-8..iso-2022-jp", $mystring); Works: $str = iconv("utf-8", "iso-2022-jp", $mystring); Don't ask me why. Hope this saves someone some frustrating hours debugging.
function Romaji2Kana works pretty good but few exception: "JA" and "DZA" were not converted correctly as Japanese speekes expected. Following is a correction of that behavior. public function convert($s, $mode='hiragana') { $s = strtoupper(str_replace( - Array('shi', 'sh', 'fu', 'chi', 'ch', 'tsu', 'dz', 'l', '-', + Array('shi', 'sh', 'fu', 'chi', 'ch', 'tsu', 'dzi', 'ji', 'j', 'l', '-', 'â', 'î', 'û', 'ê', 'ô', 'ā', 'ī', 'ū', 'ē', 'ō'), - Array('si', 'sy', 'hu', 'ti', 'ty', 'tu', 'j', 'r', '^', + Array('si', 'sy', 'hu', 'ti', 'ty', 'tu', 'zi', 'zi', 'dz','r', '^', 'a^', 'i^', 'u^', 'e^', 'o^', 'a^', 'i^', 'u^', 'e^', 'o^'), $s)); + // DZA -> ZIya + $s = preg_replace('/DZ([AUO])/e', '"ZI".strtolower("y\1")', $s); + // DZE -> ZIe + $s = preg_replace('/DZ([E])/e', '"ZI".strtolower("\1")', $s); // FO -> FUxo $s = preg_replace('@F([AIOE])@e', '"HU".strtolower("\1")', $s); // VO -> VUxo
Seems to require that librecode be installed. Try iconv() instead.