What is the primary purpose of the mysqli_close() function in PHP?
A). Establishing a database connection
B). Inserting records into the database
C). Updating records in the database
D). Closing the database connection
What is the primary purpose of the mysqli_fetch_assoc() function in PHP?
A). Inserting records into the database
B). Updating records in the database
C). Fetching data from the database
D). Closing the database connection
What is the purpose of the PDO::commit() method in PHP PDO extension?
A). Fetching data from the database
B). Inserting records into the database
C). Closing the database connection
D). Committing a transaction
Which SQL operation is used to remove all records from a database table?
A). TRUNCATE
B). CLEAR
C). DELETE
D). REMOVE
Which SQL operation is used to add new records to a database table?
A). CREATE
B). INSERT
C). ADD
D). APPEND
What is the primary advantage of using prepared statements in PHP for database operations?
A). Better performance
B). Improved security against SQL injection
C). Easier syntax
D). Compatibility with older PHP versions
Which PHP function is used to execute an SQL query in MySQLi extension?
A). mysqli_query()
B). mysqli_fetch()
C). mysqli_insert()
D). mysqli_update()
What is the primary purpose of the PDO::beginTransaction() method in PHP PDO extension?
A). Fetching data from the database
B). Inserting records into the database
C). Initiating a transaction
D). Closing the database connection
Which SQL operation is used to update the structure of an existing database table?
A). ALTER
B). UPDATE
C). MODIFY
D). CHANGE
Which PHP function is used to execute an SQL query in MySQLi extension?
A). mysqli_execute()
B). mysqli_query()
C). mysqli_fetch()
D). mysqli_prepare()