Q
What is the purpose of the PDO::lastInsertId() method in PDO extension?

Answer & Solution

Answer: Option A
Solution:
The PDO::lastInsertId() method in PDO extension is used to retrieve the ID generated by the last INSERT statement. It is commonly used to obtain the primary key value of the last inserted row in an auto-increment column.
Related Questions on Average

Which PHP extension provides better support for transaction management and error handling: MySQLi or PDO?

A). MySQLi

B). PDO

C). Both provide similar support

D). Neither supports transaction management

Which PHP extension offers a consistent interface for accessing different database engines, including MySQL, PostgreSQL, and SQLite?

A). MySQL

B). PDO

C). SQLI

D). MySQLi

Which PHP extension is specific to MySQL databases and offers both procedural and object-oriented approaches for database operations?

A). PDO

B). MySQL

C). SQLI

D). MySQLi

What is the primary purpose of database connection pooling in PHP applications?

A). Improving scalability and performance

B). Enhancing database security

C). Simplifying database configuration

D). Reducing server resource usage

Which of the following is NOT a valid database driver supported by PDO extension?

A). MySQL

B). PostgreSQL

C). MongoDB

D). SQLite

Which PHP function is used to establish a connection to a MySQL database server using MySQLi extension?

A). mysqli_connect()

B). mysqli_query()

C). mysqli_fetch_assoc()

D). mysqli_close()

Which of the following functions is used to prepare an SQL statement for execution with parameters in MySQLi extension?

A). mysqli_query()

B). mysqli_prepare()

C). mysqli_fetch_array()

D). mysqli_close()

What is the primary advantage of using prepared statements in MySQLi and PDO?

A). Improved security and protection against SQL injection

B). Faster execution of SQL queries

C). Simpler syntax for SQL statements

D). Compatibility with older PHP versions

What is the purpose of the PDO::beginTransaction() method in PDO extension?

A). Initiating a database transaction

B). Executing an SQL query

C). Fetching data from the database

D). Closing the database connection

What is the primary advantage of using PDO over MySQLi for database access in PHP?

A). Portability across different databases

B). Better performance

C). Easier syntax

D). More features