public function remove( $id ) {
		$id = $this->get_class_prefix( $id );
		unset( $this->keys[$id], $this->values[$id] );
	}
public function remove( $id ) {
		$id = $this->get_class_prefix( $id );
		unset( $this->keys[$id], $this->values[$id] );
	}
public function remove ( $ id ) { $ id = $ this -> get_class_prefix ( $ id ) ; unset ( $ this -> keys [ $ id ] , $ this -> values [ $ id ] ) ; }
Unset value by identifier.

@param string $id
Unset value by identifier .