Programmatically extract keywords from domain names

Question

Let\'s say I have a list of domain names that I would like to analyze. Unless the domain name is hyphenated, I don\'t see a particularly easy way to \"extract\" the keywords use

Answer 1

function getwords( $string ) {
    if( strpos($string,"xn--") !== false ) {
        return false;
    }
    $string = trim( str_replace( '-', '', $string ) );
    $pspell = pspell_new( 'en' );
    $check = array();
    $words = array();
    for( $j = 0; $j < ( strlen( $string ) - 5 ); $j++ ) {
        for( $i = 4; $i < strlen( $string ); $i++ ) {
            if( pspell_check( $pspell, substr( $string, $j, $i ) ) ) {
                $check[$j]++;
                $words[] = substr( $string, $j, $i );
            }
        }
    }
    $words = array_unique( $words );
    if( count( $check ) > 0 ) {
        return $words;
    }
    return false;
}

print_r( getwords( 'ilikecheesehotels' ) );

Array
(
    [0] => like
    [1] => cheese
    [2] => hotel
    [3] => hotels
)

as a simple start with pspell. you might want to compare results and see if you got the stemm of a words without the "s" at the end and merge them.