Question

Which one of the following statements can be used to select the database?

(a) $mysqli=select_db('databasename');

(b) mysqli=select_db('databasename');

(c) mysqli->select_db('databasename');

(d) $mysqli->select_db('databasename');

I got this question in an interview for job.

This is a very interesting question from Working with Databases-1 in chapter Objects and Databases in PHP of PHP

Answer 1

The correct option is (d) $mysqli->select_db('databasename');

To explain I would say: $mysqli->select_db(‘databasename’); can be used to select the database.