How can I count the numbers of rows that a MySQL query returned?

Question

How can I count the number of rows that a MySQL query returned?

Answer 1

Assuming you're using the mysql_ or mysqli_ functions, your question should already have been answered by others.

However if you're using PDO, there is no easy function to return the number of rows retrieved by a select statement, unfortunately. You have to use count() on the resultset (after assigning it to a local variable, usually).

Or if you're only interested in the number and not the data, PDOStatement::fetchColumn() on your SELECT COUNT(1)... result.