public function metaKeywordString()
    {
        $tagKeywords = array_map(
        function( $tag )
            {
                /** @var eZTagsObject $tag */
                return $tag->attribute( 'keyword' );
            },
            $this->tags()
        );

        return !empty( $tagKeywords ) ? implode( ', ', $tagKeywords ) : '';
    }
public function metaKeywordString()
    {
        $tagKeywords = array_map(
        function( $tag )
            {
                /** @var eZTagsObject $tag */
                return $tag->attribute( 'keyword' );
            },
            $this->tags()
        );

        return !empty( $tagKeywords ) ? implode( ', ', $tagKeywords ) : '';
    }
public function metaKeywordString ( ) { $ tagKeywords = array_map ( function ( $ tag ) { /** @var eZTagsObject $tag */ return $ tag -> attribute ( 'keyword' ) ; } , $ this -> tags ( ) ) ; return ! empty ( $ tagKeywords ) ? implode ( ', ' , $ tagKeywords ) : '' ; }
Returns the keywords as a string

@return string
Returns the keywords as a string