Log amount of data sent back from mysql after php call

Question

If I have a PHP script that makes a MySQL call/query. Is there a way to log/audit the size of the response/data (in bytes) that is returned from that call?

I know I could use tcpdump, but that does not necessarily ensure the traffic stats I gather are for a certain transaction (IE: I may have 5 transactions at roughly the same time, making it impossible to determine one transaction from another).

Answer 1

mysqli has a couple of functions that will give you some stats:

• mysqli_get_client_stats()
• mysqli_get_connection_stats()
• mysqli_get_cache_stats()

Some of the statistics available include:

• bytes_sent - Number of bytes sent from PHP to the MySQL server
• bytes_received - Number of bytes received from MySQL server

Take a look at this page to see the all the stats you can get if you're using the MySQL Native Driver: MySQL Native Driver statistics