public function searchByPhone($phone) {
		if( isset($phone) ){
			$this->db->where('phone', $phone);
			$this->db->from( T_USER_PHONES );
			$result = array_to_assoc( $this->db->get()->result_array(), 'phone');
			$user = array();
			if(isset($result[$phone]['user_id'])){
				$user = $this->getUserById($result[$phone]['user_id']);
			}
			return $user;
		}
		return false;
	}