Question

我想阻止用户名注册字段中的用户使用非英文字符。

我有这段代码：

if (preg_match('/[^\p{Arabic}\p{Latin}\d ]/u', $name)) return t('The username contains characters different than latin and arabic characters');

但它只会阻止以下字符：_ - （）！@＃$％^“：＆gt;＆lt; ....而不是像š，č，ć，ž，đ等字符...

我想要一个能够对阿拉伯字符或其他东西产生影响的代码。

请帮助

Answer 1

这是检查用户名是否为阿拉伯语的函数：

function isArabic($str)
{
    return preg_match('/^\p{Arabic}*$/u', $str);
}

示例：

var_dump(isArabic('الق')); var_dump(isArabic('القd')); // 0 since it contains 'd'

要验证用户名，我会这样做：

function isValidUsername($username) { return (preg_match('/^[A-Za-z0-9]+(?:[ _-][A-Za-z0-9]+)*$/', $username) || isArabic($username)); }

或者你可以这个正则表达式：

'/(?:^[A-Za-z0-9]+(?:[ _-][A-Za-z0-9]+)*$)|(?:^\p{Arabic}+(?:[ _-]\p{Arabic}+)*$)/u'

<强> DEMO

示例：

var_dump(isValidUsername('Želda')); // false var_dump(isValidUsername('Zel-da')); // true var_dump(isValidUsername('Zelda whaever,.')); // false var_dump(isValidUsername('الق')); // true var_dump(isValidUsername('الق.الق')); // false var_dump(isValidUsername('القd')); // false

但是，您可能希望使用此功能转换它，而不是阻止用户使用非英语字符：

function toAscii($input) { $str = html_entity_decode($input,ENT_COMPAT,"UTF-8"); $oldLocale = setlocale(LC_CTYPE, 0); setlocale(LC_CTYPE, 'en_US.UTF-8'); $str = iconv("UTF-8", "ASCII//TRANSLIT", $str); setlocale(LC_CTYPE, $oldLocale); return $str; }

它将返回转换后的字符串。

示例：

echo toAscii('Želda'); // Zelda

为此我还想使用函数remove_accents形式Wordpress：

/** * Converts all accent characters to ASCII characters. * * If there are no accent characters, then the string given is just returned. * * @since 1.2.1 * * @param string $string Text that might have accent characters * @return string Filtered string with replaced "nice" characters. */ function remove_accents($string, $locale = null) { if ( !preg_match('/[\x80-\xff]/', $string) ) return $string; if (seems_utf8($string)) { $chars = array( // Decompositions for Latin-1 Supplement chr(194).chr(170) => 'a', chr(194).chr(186) => 'o', 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(134) => 'AE',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(144) => 'D', 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(158) => 'TH',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(166) => 'ae',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(176) => 'd', 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(184) => '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(190) => 'th', chr(195).chr(191) => 'y', chr(195).chr(152) => 'O', // 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', // Decompositions for Latin Extended-B chr(200).chr(152) => 'S', chr(200).chr(153) => 's', chr(200).chr(154) => 'T', chr(200).chr(155) => 't', // Euro Sign chr(226).chr(130).chr(172) => 'E', // GBP (Pound) Sign chr(194).chr(163) => '', // Vowels with diacritic (Vietnamese) // unmarked chr(198).chr(160) => 'O', chr(198).chr(161) => 'o', chr(198).chr(175) => 'U', chr(198).chr(176) => 'u', // grave accent chr(225).chr(186).chr(166) => 'A', chr(225).chr(186).chr(167) => 'a', chr(225).chr(186).chr(176) => 'A', chr(225).chr(186).chr(177) => 'a', chr(225).chr(187).chr(128) => 'E', chr(225).chr(187).chr(129) => 'e', chr(225).chr(187).chr(146) => 'O', chr(225).chr(187).chr(147) => 'o', chr(225).chr(187).chr(156) => 'O', chr(225).chr(187).chr(157) => 'o', chr(225).chr(187).chr(170) => 'U', chr(225).chr(187).chr(171) => 'u', chr(225).chr(187).chr(178) => 'Y', chr(225).chr(187).chr(179) => 'y', // hook chr(225).chr(186).chr(162) => 'A', chr(225).chr(186).chr(163) => 'a', chr(225).chr(186).chr(168) => 'A', chr(225).chr(186).chr(169) => 'a', chr(225).chr(186).chr(178) => 'A', chr(225).chr(186).chr(179) => 'a', chr(225).chr(186).chr(186) => 'E', chr(225).chr(186).chr(187) => 'e', chr(225).chr(187).chr(130) => 'E', chr(225).chr(187).chr(131) => 'e', chr(225).chr(187).chr(136) => 'I', chr(225).chr(187).chr(137) => 'i', chr(225).chr(187).chr(142) => 'O', chr(225).chr(187).chr(143) => 'o', chr(225).chr(187).chr(148) => 'O', chr(225).chr(187).chr(149) => 'o', chr(225).chr(187).chr(158) => 'O', chr(225).chr(187).chr(159) => 'o', chr(225).chr(187).chr(166) => 'U', chr(225).chr(187).chr(167) => 'u', chr(225).chr(187).chr(172) => 'U', chr(225).chr(187).chr(173) => 'u', chr(225).chr(187).chr(182) => 'Y', chr(225).chr(187).chr(183) => 'y', // tilde chr(225).chr(186).chr(170) => 'A', chr(225).chr(186).chr(171) => 'a', chr(225).chr(186).chr(180) => 'A', chr(225).chr(186).chr(181) => 'a', chr(225).chr(186).chr(188) => 'E', chr(225).chr(186).chr(189) => 'e', chr(225).chr(187).chr(132) => 'E', chr(225).chr(187).chr(133) => 'e', chr(225).chr(187).chr(150) => 'O', chr(225).chr(187).chr(151) => 'o', chr(225).chr(187).chr(160) => 'O', chr(225).chr(187).chr(161) => 'o', chr(225).chr(187).chr(174) => 'U', chr(225).chr(187).chr(175) => 'u', chr(225).chr(187).chr(184) => 'Y', chr(225).chr(187).chr(185) => 'y', // acute accent chr(225).chr(186).chr(164) => 'A', chr(225).chr(186).chr(165) => 'a', chr(225).chr(186).chr(174) => 'A', chr(225).chr(186).chr(175) => 'a', chr(225).chr(186).chr(190) => 'E', chr(225).chr(186).chr(191) => 'e', chr(225).chr(187).chr(144) => 'O', chr(225).chr(187).chr(145) => 'o', chr(225).chr(187).chr(154) => 'O', chr(225).chr(187).chr(155) => 'o', chr(225).chr(187).chr(168) => 'U', chr(225).chr(187).chr(169) => 'u', // dot below chr(225).chr(186).chr(160) => 'A', chr(225).chr(186).chr(161) => 'a', chr(225).chr(186).chr(172) => 'A', chr(225).chr(186).chr(173) => 'a', chr(225).chr(186).chr(182) => 'A', chr(225).chr(186).chr(183) => 'a', chr(225).chr(186).chr(184) => 'E', chr(225).chr(186).chr(185) => 'e', chr(225).chr(187).chr(134) => 'E', chr(225).chr(187).chr(135) => 'e', chr(225).chr(187).chr(138) => 'I', chr(225).chr(187).chr(139) => 'i', chr(225).chr(187).chr(140) => 'O', chr(225).chr(187).chr(141) => 'o', chr(225).chr(187).chr(152) => 'O', chr(225).chr(187).chr(153) => 'o', chr(225).chr(187).chr(162) => 'O', chr(225).chr(187).chr(163) => 'o', chr(225).chr(187).chr(164) => 'U', chr(225).chr(187).chr(165) => 'u', chr(225).chr(187).chr(176) => 'U', chr(225).chr(187).chr(177) => 'u', chr(225).chr(187).chr(180) => 'Y', chr(225).chr(187).chr(181) => 'y', // Vowels with diacritic (Chinese, Hanyu Pinyin) chr(201).chr(145) => 'a', // macron chr(199).chr(149) => 'U', chr(199).chr(150) => 'u', // acute accent chr(199).chr(151) => 'U', chr(199).chr(152) => 'u', // caron chr(199).chr(141) => 'A', chr(199).chr(142) => 'a', chr(199).chr(143) => 'I', chr(199).chr(144) => 'i', chr(199).chr(145) => 'O', chr(199).chr(146) => 'o', chr(199).chr(147) => 'U', chr(199).chr(148) => 'u', chr(199).chr(153) => 'U', chr(199).chr(154) => 'u', // grave accent chr(199).chr(155) => 'U', chr(199).chr(156) => 'u', ); if ( 'de_DE' == $locale ) { $chars[ chr(195).chr(132) ] = 'Ae'; $chars[ chr(195).chr(164) ] = 'ae'; $chars[ chr(195).chr(150) ] = 'Oe'; $chars[ chr(195).chr(182) ] = 'oe'; $chars[ chr(195).chr(156) ] = 'Ue'; $chars[ chr(195).chr(188) ] = 'ue'; $chars[ chr(195).chr(159) ] = 'ss'; } elseif ( 'da_DK' === $locale ) { $chars[ chr(195).chr(134) ] = 'Ae'; $chars[ chr(195).chr(166) ] = 'ae'; $chars[ chr(195).chr(152) ] = 'Oe'; $chars[ chr(195).chr(184) ] = 'oe'; $chars[ chr(195).chr(133) ] = 'Aa'; $chars[ chr(195).chr(165) ] = 'aa'; } $string = strtr($string, $chars); } else { // Assume ISO-8859-1 if not UTF-8 $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158) .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194) .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202) .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210) .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218) .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227) .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235) .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243) .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251) .chr(252).chr(253).chr(255); $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy"; $string = strtr($string, $chars['in'], $chars['out']); $double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254)); $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th'); $string = str_replace($double_chars['in'], $double_chars['out'], $string); } return $string; } /** * Set the mbstring internal encoding to a binary safe encoding when func_overload * is enabled. * * When mbstring.func_overload is in use for multi-byte encodings, the results from * strlen() and similar functions respect the utf8 characters, causing binary data * to return incorrect lengths. * * This function overrides the mbstring encoding to a binary-safe encoding, and * resets it to the users expected encoding afterwards through the * `reset_mbstring_encoding` function. * * It is safe to recursively call this function, however each * `mbstring_binary_safe_encoding()` call must be followed up with an equal number * of `reset_mbstring_encoding()` calls. * * @since 3.7.0 * * @see reset_mbstring_encoding() * * @param bool $reset Optional. Whether to reset the encoding back to a previously-set encoding. * Default false. */ function mbstring_binary_safe_encoding( $reset = false ) { static $encodings = array(); static $overloaded = null; if ( is_null( $overloaded ) ) $overloaded = function_exists( 'mb_internal_encoding' ) && ( ini_get( 'mbstring.func_overload' ) & 2 ); if ( false === $overloaded ) return; if ( ! $reset ) { $encoding = mb_internal_encoding(); array_push( $encodings, $encoding ); mb_internal_encoding( 'ISO-8859-1' ); } if ( $reset && $encodings ) { $encoding = array_pop( $encodings ); mb_internal_encoding( $encoding ); } } /** * Checks to see if a string is utf8 encoded. * * NOTE: This function checks for 5-Byte sequences, UTF8 * has Bytes Sequences with a maximum length of 4. * * @author bmorel at ssi dot fr (modified) * @since 1.2.1 * * @param string $str The string to be checked * @return bool True if $str fits a UTF-8 model, false otherwise. */ function seems_utf8($str) { mbstring_binary_safe_encoding(); $length = strlen($str); reset_mbstring_encoding(); for ($i=0; $i < $length; $i++) { $c = ord($str[$i]); if ($c < 0x80) $n = 0; # 0bbbbbbb elseif (($c & 0xE0) == 0xC0) $n=1; # 110bbbbb elseif (($c & 0xF0) == 0xE0) $n=2; # 1110bbbb elseif (($c & 0xF8) == 0xF0) $n=3; # 11110bbb elseif (($c & 0xFC) == 0xF8) $n=4; # 111110bb elseif (($c & 0xFE) == 0xFC) $n=5; # 1111110b else return false; # Does not match any model for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ? if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80)) return false; } } return true; } /** * Reset the mbstring internal encoding to a users previously set encoding. * * @see mbstring_binary_safe_encoding() * * @since 3.7.0 */ function reset_mbstring_encoding() { mbstring_binary_safe_encoding( true ); }

示例：

echo remove_accents('Želda'); // Zelda

Answer 2

在这种情况下，您可以使用仅包含ascii字母和数字的[:alnum:]字符类：

if (preg_match('/[^\p{Arabic}[:alnum:]]/u', $name))

如果您想允许其他语言的数字：

if (preg_match('/[^\p{Arabic}a-z\d]/ui', $name))

如何防止用户在用户名中使用非英文字母字符，如“š，č，ć，ž，đ...等”？

2 个答案: