In the footer of my page, I would like to add something like \"last updated the xx/xx/200x\" with this date being the last time a certain mySQL table has been updated.
I don't have information_schema database, using mysql version 4.1.16, so in this case you can query this:
SHOW TABLE STATUS FROM your_database LIKE 'your_table';
It will return these columns:
| Name | Engine | Version | Row_format | Rows | Avg_row_length
| Data_length | Max_data_length | Index_length | Data_free | Auto_increment
| Create_time | Update_time | Check_time | Collation
| Checksum | Create_options | Comment |
As you can see there is a column called: "Update_time" that shows you the last update time for your_table.