Question

The variable used as a handle to an open file is ______________

(a) $dbh

(b) $sth

(c) $fh

(d) $h

This question was posed to me in an online quiz.

I would like to ask this question from Date and Time Data Types topic in portion Data Type Reference, Operators and Functions of MySQL

Answer 1

The correct answer is (c) $fh

For explanation I would say: The variable named ‘$fh’ is a handle to an open file. ‘$h’ is a generic handle and the meaning depends on context. ‘$dbh’ is a handle to a database object. ‘$sth’ is a handle to a query object.