- Code: Select all
function make_keywords($keywordIn) {
$var = preg_replace('/[\s]+/',' ',preg_replace('/[^0-9a-zæøå\s]+/i',' ',$keywordIn)); $ex = explode(' ',$var); foreach($ex as $i => $value) if (trim($value) == "") unset($ex[$i]); else $ex[$i] = strtolower($value); $ex = array_unique($ex); return join(', ',$ex);
}
brug
$string = "Script / Med , mange mange mange, . forskellige tegn. .#¤%";
echo make_keywords($string); // giver "script, med, mange, forskellige, tegn"