[PHP]Funkcja usuwająca znaki niealfanumeryczne Opcje

[-Mesajah-]

Witam,

Czy jest jakaś funkcja, która pozwala usuwać wszystkie znaki niealfanumeryczne ze stringa (w celu stworzenia przyjaznego linka) ?

Np chciałbym zamienić:

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$a='Adam Mickiewicz - Dziady (1820)!'^&*_';
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na:

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$b='adam-mickiewicz-dziady-1820';
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Jak najprościej osiągnąć taki efekt ?

[thek]

To ja podam Ci złożony gotowiec złożony z nieco przerobionych 2 funkcji biblioteki utf8 i helpera url kohany 2.x (IMG:style_emoticons/default/smile.gif)

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function title($title, $separator = '-') {
    $separator = ($separator === '-') ? '-' : '_';
// Replace all characters that are national accents
    $UTF8_ACCENTS = array( 'ŕ' => 'a',  'ô' => 'o',  'ď' => 'd',  'ḟ' => 'f',  'ë' => 'e',  'š' => 's',  'ơ' => 'o', 'ß' => 'ss', 'ă' => 'a',  'ř' => 'r',  'ț' => 't',  'ň' => 'n',  'ā' => 'a',  'ķ' => 'k', 'ŝ' => 's',  'ỳ' => 'y',  'ņ' => 'n',  'ĺ' => 'l',  'ħ' => 'h',  'ṗ' => 'p',  'ó' => 'o', 'ú' => 'u',  'ě' => 'e',  'é' => 'e',  'ç' => 'c',  'ẁ' => 'w',  'ċ' => 'c',  'ő' => 'o', 	'ṡ' => 's',  'ř' => 'o',  'ģ' => 'g',  'ŧ' => 't',  'ș' => 's',  'ė' => 'e',  'ĉ' => 'c', 'ś' => 's',  'î' => 'i',  'ű' => 'u',  'ć' => 'c',  'ę' => 'e',  'ŵ' => 'w',  'ṫ' => 't', 'ū' => 'u',  'č' => 'c',  'ö' => 'o',  'č' => 'e',  'ŷ' => 'y',  'ą' => 'a',  'ł' => 'l', 'ų' => 'u',  'ů' => 'u',  'ş' => 's',  'ğ' => 'g',  'ļ' => 'l',  'ƒ' => 'f',  'ž' => 'z', 'ẃ' => 'w',  'ḃ' => 'b',  'ĺ' => 'a',  'ě' => 'i',  'ď' => 'i',  'ḋ' => 'd',  'ť' => 't', 'ŗ' => 'r',  'ä' => 'a',  'í' => 'i',  'ŕ' => 'r',  'ę' => 'e',  'ü' => 'u',  'ň' => 'o',  'ē' => 'e',  'ń' => 'n',  'ń' => 'n',  'ĥ' => 'h',  'ĝ' => 'g',  'đ' => 'd',  'ĵ' => 'j', '˙' => 'y',  'ũ' => 'u',  'ŭ' => 'u',  'ư' => 'u',  'ţ' => 't',  'ý' => 'y',  'ő' => 'o', 'â' => 'a',  'ľ' => 'l',  'ẅ' => 'w',  'ż' => 'z',  'ī' => 'i',  'ă' => 'a',  'ġ' => 'g', 'ṁ' => 'm',  'ō' => 'o',  'ĩ' => 'i',  'ů' => 'u',  'į' => 'i',  'ź' => 'z',  'á' => 'a', 'ű' => 'u',  'ţ' => 'th', 'đ' => 'dh', 'ć' => 'ae', 'ľ' => 'u',  'ĕ' => 'e', 'Ŕ' => 'A',  'Ô' => 'O',  'Ď' => 'D',  'Ḟ' => 'F',  'Ë' => 'E',  'Š' => 'S',  'Ơ' => 'O', 'Ă' => 'A',  'Ř' => 'R',  'Ț' => 'T',  'Ň' => 'N',  'Ā' => 'A',  'Ķ' => 'K',  'Ĕ' => 'E', 'Ŝ' => 'S',  'Ỳ' => 'Y',  'Ņ' => 'N',  'Ĺ' => 'L',  'Ħ' => 'H',  'Ṗ' => 'P',  'Ó' => 'O', 'Ú' => 'U',  'Ě' => 'E',  'É' => 'E',  'Ç' => 'C',  'Ẁ' => 'W',  'Ċ' => 'C',  'Ő' => 'O', 'Ṡ' => 'S',  'Ř' => 'O',  'Ģ' => 'G',  'Ŧ' => 'T',  'Ș' => 'S',  'Ė' => 'E',  'Ĉ' => 'C', 'Ś' => 'S',  'Î' => 'I',  'Ű' => 'U',  'Ć' => 'C',  'Ę' => 'E',  'Ŵ' => 'W',  'Ṫ' => 'T', 'Ū' => 'U',  'Č' => 'C',  'Ö' => 'O',  'Č' => 'E',  'Ŷ' => 'Y',  'Ą' => 'A',  'Ł' => 'L', 'Ų' => 'U',  'Ů' => 'U',  'Ş' => 'S',  'Ğ' => 'G',  'Ļ' => 'L',  'Ƒ' => 'F',  'Ž' => 'Z', 'Ẃ' => 'W',  'Ḃ' => 'B',  'Ĺ' => 'A',  'Ě' => 'I',  'Ď' => 'I',  'Ḋ' => 'D',  'Ť' => 'T', 'Ŗ' => 'R',  'Ä' => 'A',  'Í' => 'I',  'Ŕ' => 'R',  'Ę' => 'E',  'Ü' => 'U',  'Ň' => 'O', 'Ē' => 'E',  'Ń' => 'N',  'Ń' => 'N',  'Ĥ' => 'H',  'Ĝ' => 'G',  'Đ' => 'D',  'Ĵ' => 'J', 'Ÿ' => 'Y',  'Ũ' => 'U',  'Ŭ' => 'U',  'Ư' => 'U',  'Ţ' => 'T',  'Ý' => 'Y',  'Ő' => 'O', 	'Â' => 'A',  'Ľ' => 'L',  'Ẅ' => 'W',  'Ż' => 'Z',  'Ī' => 'I',  'Ă' => 'A',  'Ġ' => 'G', 'Ṁ' => 'M',  'Ō' => 'O',  'Ĩ' => 'I',  'Ů' => 'U',  'Į' => 'I',  'Ź' => 'Z',  'Á' => 'A', 'Ű' => 'U',  'Ţ' => 'Th', 'Đ' => 'Dh', 'Ć' => 'Ae' );
    $title = str_replace( array_keys($UTF8_ACCENTS), array_values($UTF8_ACCENTS), $title );
 
// Remove all characters that are not the separator, a-z, 0-9, or whitespace
    $title = preg_replace('/[^'.$separator.'a-z0-9\s]+/', '', strtolower($title));
 
// Replace all separator characters and whitespace by a single separator
    $title = preg_replace('/['.$separator.'\s]+/', $separator, $title);
 
// Trim separators from the beginning and end
    return trim($title, $separator);
}
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