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
D). Getting the number of rows in a result set
Which of the following PHP functions is used to get the number of rows affected by an SQL query in MySQLi extension?
A). mysqli_num_rows()
B). mysqli_affected_rows()
C). mysqli_num_fields()
D). mysqli_fetch_row()
Which of the following statements is true regarding SQL SELECT operation?
A). It updates existing records in a table
B). It removes specific records from a table
C). It adds new records to a table
D). It retrieves data from a table
What is the purpose of the mysqli_fetch_object() function in PHP?
A). Establishing a database connection
B). Executing SQL queries
C). Fetching data from the database
D). Closing the database connection
Which of the following SQL operations is used to update existing data in a database table?
A). INSERT
B). SELECT
C). UPDATE
D). DELETE
What is the primary purpose of the PDO::exec() method in PHP PDO extension?
A). Establishing a database connection
B). Executing an SQL query
C). Fetching data from the database
D). Closing the database connection
Which of the following PHP functions is used to execute an SQL query in PDO extension?
A). pdo_execute()
B). pdo_query()
C). pdo_fetch()
D). pdo_prepare()
Which PHP extension is commonly used for executing SQL queries and interacting with databases?
A). MySQL
B). PDO
C). SQLI
D). PHPDB
What is the purpose of the mysqli_close() function in PHP?
A). Establishing a database connection
B). Executing SQL queries
C). Fetching data from the database
D). Closing the database connection
Which of the following SQL operations is used to insert new data into a database table?
A). INSERT
B). SELECT
C). UPDATE
D). DELETE