如何从PHP字符串中的字符中删除重音符号？

Question

我正在尝试从PHP字符串中的字符中删除重音符号，作为使字符串在URL中可用的第一步。我正在使用以下代码：$input = "Fóø Bår";setlocale(LC_ALL, "en_US.utf8");$output = iconv("utf-8", "ascii//TRANSLIT", $input);print($output);我期望的输出将是这样的：F'oo Bar但是，不是将重音字符音译，而是将它们替换为问号：F?? B?r我在网上可以找到的所有内容都表明，设置语言环境将解决此问题，但是我已经这样做了。我已经检查了以下详细信息：服务器支持我设置的语言环境（包含在产生的列表中locale -a）服务器的iconv版本（包含在产生的列表中）支持源编码和目标编码（UTF-8和ASCII iconv -l）。输入字符串是UTF-8编码的（使用PHP mb_check_encoding函数进行了验证，如墨卡托的答案所示）的调用setlocale成功（返回'en_US.utf8'而不是FALSE）问题原因：服务器正在使用错误的iconv实现。它具有glibc版本，而不是必需的libiconv版本。请注意，某些系统上的iconv功能可能无法按预期工作。在这种情况下，最好安装GNU libiconv库。最终可能会得到更一致的结果。– PHP手册对iconv的介绍该phpinfo函数的输出中包含有关PHP使用的iconv实现的详细信息。（我无法在与此项目一起使用的服务器上使用正确的iconv库重新编译PHP，因此下面我接受的答案是在没有iconv支持的情况下删除重音符号的最有用的答案。）

Answer 1

什么WordPress的实现？

function remove_accents($string) {

    if ( !preg_match('/[\x80-\xff]/', $string) )

        return $string;

    $chars = array(

    // Decompositions for Latin-1 Supplement

    chr(195).chr(128) => 'A', chr(195).chr(129) => 'A',

    chr(195).chr(130) => 'A', chr(195).chr(131) => 'A',

    chr(195).chr(132) => 'A', chr(195).chr(133) => 'A',

    chr(195).chr(135) => 'C', chr(195).chr(136) => 'E',

    chr(195).chr(137) => 'E', chr(195).chr(138) => 'E',

    chr(195).chr(139) => 'E', chr(195).chr(140) => 'I',

    chr(195).chr(141) => 'I', chr(195).chr(142) => 'I',

    chr(195).chr(143) => 'I', chr(195).chr(145) => 'N',

    chr(195).chr(146) => 'O', chr(195).chr(147) => 'O',

    chr(195).chr(148) => 'O', chr(195).chr(149) => 'O',

    chr(195).chr(150) => 'O', chr(195).chr(153) => 'U',

    chr(195).chr(154) => 'U', chr(195).chr(155) => 'U',

    chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y',

    chr(195).chr(159) => 's', chr(195).chr(160) => 'a',

    chr(195).chr(161) => 'a', chr(195).chr(162) => 'a',

    chr(195).chr(163) => 'a', chr(195).chr(164) => 'a',

    chr(195).chr(165) => 'a', chr(195).chr(167) => 'c',

    chr(195).chr(168) => 'e', chr(195).chr(169) => 'e',

    chr(195).chr(170) => 'e', chr(195).chr(171) => 'e',

    chr(195).chr(172) => 'i', chr(195).chr(173) => 'i',

    chr(195).chr(174) => 'i', chr(195).chr(175) => 'i',

    chr(195).chr(177) => 'n', chr(195).chr(178) => 'o',

    chr(195).chr(179) => 'o', chr(195).chr(180) => 'o',

    chr(195).chr(181) => 'o', chr(195).chr(182) => 'o',

    chr(195).chr(182) => 'o', chr(195).chr(185) => 'u',

    chr(195).chr(186) => 'u', chr(195).chr(187) => 'u',

    chr(195).chr(188) => 'u', chr(195).chr(189) => 'y',

    chr(195).chr(191) => 'y',

    // Decompositions for Latin Extended-A

    chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',

    chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',

    chr(196).chr(132) => 'A', chr(196).chr(133) => 'a',

    chr(196).chr(134) => 'C', chr(196).chr(135) => 'c',

    chr(196).chr(136) => 'C', chr(196).chr(137) => 'c',

    chr(196).chr(138) => 'C', chr(196).chr(139) => 'c',

    chr(196).chr(140) => 'C', chr(196).chr(141) => 'c',

    chr(196).chr(142) => 'D', chr(196).chr(143) => 'd',

    chr(196).chr(144) => 'D', chr(196).chr(145) => 'd',

    chr(196).chr(146) => 'E', chr(196).chr(147) => 'e',

    chr(196).chr(148) => 'E', chr(196).chr(149) => 'e',

    chr(196).chr(150) => 'E', chr(196).chr(151) => 'e',

    chr(196).chr(152) => 'E', chr(196).chr(153) => 'e',

    chr(196).chr(154) => 'E', chr(196).chr(155) => 'e',

    chr(196).chr(156) => 'G', chr(196).chr(157) => 'g',

    chr(196).chr(158) => 'G', chr(196).chr(159) => 'g',

    chr(196).chr(160) => 'G', chr(196).chr(161) => 'g',

    chr(196).chr(162) => 'G', chr(196).chr(163) => 'g',

    chr(196).chr(164) => 'H', chr(196).chr(165) => 'h',

    chr(196).chr(166) => 'H', chr(196).chr(167) => 'h',

    chr(196).chr(168) => 'I', chr(196).chr(169) => 'i',

    chr(196).chr(170) => 'I', chr(196).chr(171) => 'i',

    chr(196).chr(172) => 'I', chr(196).chr(173) => 'i',

    chr(196).chr(174) => 'I', chr(196).chr(175) => 'i',

    chr(196).chr(176) => 'I', chr(196).chr(177) => 'i',

    chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij',

    chr(196).chr(180) => 'J', chr(196).chr(181) => 'j',

    chr(196).chr(182) => 'K', chr(196).chr(183) => 'k',

    chr(196).chr(184) => 'k', chr(196).chr(185) => 'L',

    chr(196).chr(186) => 'l', chr(196).chr(187) => 'L',

    chr(196).chr(188) => 'l', chr(196).chr(189) => 'L',

    chr(196).chr(190) => 'l', chr(196).chr(191) => 'L',

    chr(197).chr(128) => 'l', chr(197).chr(129) => 'L',

    chr(197).chr(130) => 'l', chr(197).chr(131) => 'N',

    chr(197).chr(132) => 'n', chr(197).chr(133) => 'N',

    chr(197).chr(134) => 'n', chr(197).chr(135) => 'N',

    chr(197).chr(136) => 'n', chr(197).chr(137) => 'N',

    chr(197).chr(138) => 'n', chr(197).chr(139) => 'N',

    chr(197).chr(140) => 'O', chr(197).chr(141) => 'o',

    chr(197).chr(142) => 'O', chr(197).chr(143) => 'o',

    chr(197).chr(144) => 'O', chr(197).chr(145) => 'o',

    chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe',

    chr(197).chr(148) => 'R',chr(197).chr(149) => 'r',

    chr(197).chr(150) => 'R',chr(197).chr(151) => 'r',

    chr(197).chr(152) => 'R',chr(197).chr(153) => 'r',

    chr(197).chr(154) => 'S',chr(197).chr(155) => 's',

    chr(197).chr(156) => 'S',chr(197).chr(157) => 's',

    chr(197).chr(158) => 'S',chr(197).chr(159) => 's',

    chr(197).chr(160) => 'S', chr(197).chr(161) => 's',

    chr(197).chr(162) => 'T', chr(197).chr(163) => 't',

    chr(197).chr(164) => 'T', chr(197).chr(165) => 't',

    chr(197).chr(166) => 'T', chr(197).chr(167) => 't',

    chr(197).chr(168) => 'U', chr(197).chr(169) => 'u',

    chr(197).chr(170) => 'U', chr(197).chr(171) => 'u',

    chr(197).chr(172) => 'U', chr(197).chr(173) => 'u',

    chr(197).chr(174) => 'U', chr(197).chr(175) => 'u',

    chr(197).chr(176) => 'U', chr(197).chr(177) => 'u',

    chr(197).chr(178) => 'U', chr(197).chr(179) => 'u',

    chr(197).chr(180) => 'W', chr(197).chr(181) => 'w',

    chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y',

    chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z',

    chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',

    chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',

    chr(197).chr(190) => 'z', chr(197).chr(191) => 's'

    );

    $string = strtr($string, $chars);

    return $string;

}

为了更好地了解此功能的作用，请在此处检查以下相应的转换表：

À => A

Á => A

 => A

à => A

Ä => A

Å => A

Ç => C

È => E

É => E

Ê => E

Ë => E

Ì => I

Í => I

Î => I

Ï => I

Ñ => N

Ò => O

Ó => O

Ô => O

Õ => O

Ö => O

Ù => U

Ú => U

Û => U

Ü => U

Ý => Y

ß => s

à => a

á => a

â => a

ã => a

ä => a

å => a

ç => c

è => e

é => e

ê => e

ë => e

ì => i

í => i

î => i

ï => i

ñ => n

ò => o

ó => o

ô => o

õ => o

ö => o

ù => u

ú => u

û => u

ü => u

ý => y

ÿ => y

Ā => A

ā => a

Ă => A

ă => a

Ą => A

ą => a

Ć => C

ć => c

Ĉ => C

ĉ => c

Ċ => C

ċ => c

Č => C

č => c

Ď => D

ď => d

Đ => D

đ => d

Ē => E

ē => e

Ĕ => E

ĕ => e

Ė => E

ė => e

Ę => E

ę => e

Ě => E

ě => e

Ĝ => G

ĝ => g

Ğ => G

ğ => g

Ġ => G

ġ => g

Ģ => G

ģ => g

Ĥ => H

ĥ => h

Ħ => H

ħ => h

Ĩ => I

ĩ => i

Ī => I

ī => i

Ĭ => I

ĭ => i

Į => I

į => i

İ => I

ı => i

IJ => IJ

ij => ij

Ĵ => J

ĵ => j

Ķ => K

ķ => k

ĸ => k

Ĺ => L

ĺ => l

Ļ => L

ļ => l

Ľ => L

ľ => l

Ŀ => L

ŀ => l

Ł => L

ł => l

Ń => N

ń => n

Ņ => N

ņ => n

Ň => N

ň => n

ʼn => N

Ŋ => n

ŋ => N

Ō => O

ō => o

Ŏ => O

ŏ => o

Ő => O

ő => o

Π=> OE

œ => oe

Ŕ => R

ŕ => r

Ŗ => R

ŗ => r

Ř => R

ř => r

Ś => S

ś => s

Ŝ => S

ŝ => s

Ş => S

ş => s

Š => S

š => s

Ţ => T

ţ => t

Ť => T

ť => t

Ŧ => T

ŧ => t

Ũ => U

ũ => u

Ū => U

ū => u

Ŭ => U

ŭ => u

Ů => U

ů => u

Ű => U

ű => u

Ų => U

ų => u

Ŵ => W

ŵ => w

Ŷ => Y

ŷ => y

Ÿ => Y

Ź => Z

ź => z

Ż => Z

ż => z

Ž => Z

ž => z

ſ => s

您可以通过简单地遍历$chars函数数组自己生成此convecon表：

foreach($chars as $k=>$v) {

   printf("%s -> %s", $k, $v);

}