Developers & Programmers Interview

Interview Question:

Can you explain the difference between GET and POST methods in PHP?

Candidate's Answer:

Get methods are often used for retrieving data from the datatabse to the view of the application meanwhile POST is often used for submitting data while not letting it shown in the routes or in the search bar of the application

AI Evaluation:

Your answer is on the right track, but it can be improved to provide more comprehensive explanation to the interviewer.

GET method is used to request data from a specified resource and should only be used for retrieving data. It appends the data to the URL which can be seen in the browser's address bar. It has a limitation on the amount of data that can be sent, typically around 2048 characters.

POST method, on the other hand, is used to submit data to be processed to a specified resource. It sends the data in the body of the HTTP request, making it more secure as the data is not visible in the URL. POST method does not have a limitation on the amount of data that can be sent.

In summary, GET method is used for retrieving data from the server, while POST method is used for sending data to the server without exposing it in the URL.

To improve your answer, you can provide more examples or scenarios where each method would be more appropriate to use in a PHP application.

Overall, I would rate your answer a 3.5/5.

Interview Question:

How do you prevent SQL injection in PHP?

Candidate's Answer:

There are many ways of preventing sql injections in php. One of them is by using frameworks where code is regulated and is often done with middlewares to avoid unauthorized access. Another way is to optimize queries in your login methods.

AI Evaluation:

Your answer is partially correct and touches on some important points for preventing SQL injection in PHP. Using frameworks like Laravel or CodeIgniter can help prevent SQL injection by providing built-in security features like query builders and parameterized queries. These frameworks also often have input validation and sanitization functions that can help prevent attackers from injecting malicious SQL code.

However, optimizing queries in your login methods alone may not be enough to fully prevent SQL injection. It's important to always use parameterized queries and never concatenate user input directly into your SQL queries. This means using prepared statements or PDO with bound parameters to ensure that user input is properly escaped before being included in a query.

To improve your answer, you could also mention other security measures such as input validation, whitelisting, and blacklisting of input data. Additionally, emphasizing the importance of educating developers on the risks of SQL injection and the best practices for preventing it can also strengthen your answer.

Overall, I would rate your answer a 3/5. It addresses some important points but could benefit from more detailed examples and explanation of best practices for preventing SQL injection in PHP.