Displaying the last row of a mysql table on a website page?

Question

PHP

Hello, I need to output the last row from table tbl1, mysql database (name: sensor), to a website page.
The table has the following columns: id, temp, vlaj, datetime.
Please tell me what can be used, what commands, functions, or where you can read about it, at least from what to build on. In mysql and php full zero. I would really appreciate your help, thanks in advance.
ps If possible, it would be nice if you could help write the complete structure of this code.

Answer 1

The short algorithm is as follows.
1. Connect to the database (you can also work with MySQL via PDO or the mysql extension (deprecated and removed in php7))
2. Make a query
www.mysql.ru/docs/man/SELECT.html
3. Read the result from what will return item 2
4. Display the result on the page.

Answer 2

SELECT * FROM tbl1 ORDER BY id DESC LIMIT 1