Q
Which of the following PHP functions is used to get the number of rows affected by an SQL query in MySQLi extension?

Answer & Solution

Answer: Option B
Solution:
The mysqli_affected_rows() function in PHP MySQLi extension is used to get the number of rows affected by an SQL query such as INSERT, UPDATE, DELETE, or REPLACE. It returns the number of affected rows or -1 if the last query did not affect any rows.
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A). Establishing a database connection

B). Executing SQL queries

C). Fetching data from the database

D). Closing the database connection

What is the purpose of the mysqli_num_rows() function in PHP?

A). Establishing a database connection

B). Executing SQL queries

C). Fetching data from the database

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A). mysqli_execute()

B). mysqli_query()

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A). It updates existing records in a table

B). It removes specific records from a table

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A). pdo_execute()

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C). pdo_fetch()

D). pdo_prepare()

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A). Establishing a database connection

B). Executing an SQL query

C). Fetching data from the database

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B). It updates existing records in a table

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A). PDO

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