用PHP检查； 如果连接的动态MySQL数据库已更改？

Question

I'm wondering if there's any ability from the PHP side ; to detected if the connected mySQL database has changed; or updated?

I would like to eventually print a time stamp if it was / has.

So, I have a connection file.

ie

$host = "BIGHOST:3306";
$user = "root";
$password = "TWIN@*";
$db = "bigDB_db88";

then in other .php files; I call it before queries.

ie

require_once('core/include/connection.php');

Context.

ie

I'm trying to print a time stamp in a .html file when the connected, dynamic database has changed or updated. ie ' Last Updated at '

Answer 1

Not sure if this is what you are asking... You can try:

SHOW TABLE STATUS FROM your-db-name;

The query will return Update_time for each table.

You can limit result set (to exclude views or federated tables for example) by adding WHERE clause:

SHOW TABLE STATUS FROM your-db-name WHERE Engine IS NOT NULL AND Update_time IS NOT NULL;