How to insert timestamp into mysql with php properly?

Problem :

Here is my table num structure:

mysql> show columns from num;
| Field | Type      | Null | Key | Default           | Extra                       |
| ip    | char(20)  | YES  |     | NULL              |                             |
| time  | timestamp | NO   |     | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
2 rows in set (0.00 sec)

I insert record with the following codes:

    $ip = $_SERVER['REMOTE_ADDR'];
    $query="insert into  num(ip,time) values('$ip','$time')";
    mysql_query($query, $db);
    echo "ok";

The time is wrong after i inserted two records into table num,
What is matter with my database or php code?

mysql> select * from num;
| ip        | time                |
| | 0000-00-00 00:00:00 |
| | 0000-00-00 00:00:00 |
2 rows in set (0.00 sec)

Solution :

To insert the current timestamp, use:


If your server time is different from what you want, you can add hours (or minutes, etc) to the timestamp:


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