| return true;␊ |
| }␊ |
| ␊ |
| /**␊ |
| * Detect if a string is in a Russian charset.␊ |
| *␊ |
| * This should be used when the mb_string detection encoding is␊ |
| * failing. For example:␊ |
| *␊ |
| * <pre>␊ |
| * $encoding = mb_detect_encoding($string, mb_detect_order(), true);␊ |
| * if ($encoding == false) {␊ |
| * $encoding = Pluf_Text_UTF8::detect_cyr_charset($string);␊ |
| * }␊ |
| * </pre>␊ |
| *␊ |
| * @link http://forum.php.su/topic.php?forum=1&topic=1346␊ |
| *␊ |
| * @param string ␊ |
| * @return string Possible Russian encoding␊ |
| */␊ |
| public static function detect_cyr_charset($str) ␊ |
| {␊ |
| $charsets = array(␊ |
| 'KOI8-R' => 0,␊ |
| 'Windows-1251' => 0,␊ |
| 'CP-866' => 0,␊ |
| 'ISO-8859-5' => 0,␊ |
| 'MacCyrillic' => 0␊ |
| );␊ |
| $length = strlen($str);␊ |
| for ($i=0; $i<$length; $i++) {␊ |
| $char = ord($str[$i]);␊ |
| //non-russian characters␊ |
| if ($char < 128 || $char > 256) continue;␊ |
| ␊ |
| //CP866␊ |
| if (($char > 159 && $char < 176) || ($char > 223 && $char < 242))␊ |
| $charsets['CP-866']+=3;␊ |
| if (($char > 127 && $char < 160)) $charsets['CP-866']+=1;␊ |
| ␊ |
| //KOI8-R␊ |
| if (($char > 191 && $char < 223)) $charsets['KOI8-R']+=3;␊ |
| if (($char > 222 && $char < 256)) $charsets['KOI8-R']+=1;␊ |
| ␊ |
| //WIN-1251␊ |
| if ($char > 223 && $char < 256) $charsets['Windows-1251']+=3;␊ |
| if ($char > 191 && $char < 224) $charsets['Windows-1251']+=1;␊ |
| ␊ |
| //MAC␊ |
| if ($char > 221 && $char < 255) $charsets['MacCyrillic']+=3;␊ |
| if ($char > 127 && $char < 160) $charsets['MacCyrillic']+=1;␊ |
| ␊ |
| //ISO-8859-5␊ |
| if ($char > 207 && $char < 240) $charsets['ISO-8859-5']+=3;␊ |
| if ($char > 175 && $char < 208) $charsets['ISO-8859-5']+=1;␊ |
| ␊ |
| }␊ |
| arsort($charsets);␊ |
| return key($charsets);␊ |
| }␊ |
| ␊ |
| ␊ |
| /**␊ |
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