Which one of the following method is used to retrieve the number of rows affected by an INSERT, UPDATE, or DELETE query?(a) num_rows()(b) affected_rows()(c) changed_rows()(d) mysqli_affected_rows()This question was posed to me in my homework.I want to ask this question from Working with Databases-2 in portion Objects and Databases in PHP of PHP

Which one of the following method is used to retrieve the number of ro

1.	Which one of the following method is used to retrieve the number of rows affected by an INSERT, UPDATE, or DELETE query?(a) num_rows()(b) affected_rows()(c) changed_rows()(d) mysqli_affected_rows()This question was posed to me in my homework.I want to ask this question from Working with Databases-2 in portion Objects and Databases in PHP of PHP
Answer» The correct option is (d) mysqli_affected_rows() Easy explanation: The method mysqli_num_rows() is only useful for determining the number of ROWS RETRIEVED by a SELECT QUERY. But to retrieve the number of rows affected by INSERT, UPDATE, or DELETE query, use mysqli_affected_rows(). Num_rows() andaffected_rows() were used in previous version of PHP.

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