~~~ function is_spam($text, $file, $split = ':', $regex = false){ ????$handle = fopen($file, 'rb'); ????$contents = fread($handle, filesize($file)); ????fclose($handle); ????$lines = explode("n", $contents); ????$arr = array(); ????foreach($lines as $line){ ????????list($word, $count) = explode($split, $line); ????????if($regex) ????????????$arr[$word] = $count; ????????else ????????????$arr[preg_quote($word)] = $count; ????} ????preg_match_all("~".implode('|', array_keys($arr))."~", $text, $matches); ????$temp = array(); ????foreach($matches[0] as $match){ ????????if(!in_array($match, $temp)){ ????????????$temp[$match] = $temp[$match] + 1; ????????????if($temp[$match] >= $arr[$word]) ????????????????return true; ????????} ????} ????return false; } ? $file = 'spam.txt'; $str = 'This string has cat, dog word'; if(is_spam($str, $file)) ????echo 'this is spam'; else ????echo 'this is not spam'; ~~~