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<?php function prepareKeywordsForDatabase($string) { $keywords = preg_split('#[\,|\v]#', $string); $keywords = array_map('trim', $keywords); for ($i = 0; $i < count($keywords); ++$i) { if ($keywords[$i] == '') { unset($keywords[$i]); } } return implode('.', $keywords); } echo prepareKeywordsForDatabase('ciao, come , , , , va ?!! !!');

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