Top 10 PHP Interview Questions and Answers
MySQLi: mysqli_connect()
PDO: new PDO()
It’s best practice to use prepared statements while connecting to the database in PHP to prevent SQL injection attacks.
- How do you perform a query in PHP?
Once you have connected to a database in PHP, you can perform queries on the database using various functions or methods depending on the library or extension you are using.
Examples of different functions and methods used to perform queries in PHP include:
MySQLi: mysqli_query()
PDO: PDO::query()
It’s important to check for errors after performing a query to ensure that the query was successful. You can use functions such as mysqli_error() or PDO::errorInfo() to check for errors.
- How do you create a session in PHP?
