PHP

How can you implement the creation of an instance that uses an abstract class?

Have you used tools for building SQL queries programmatically?

Can you provide an example illustrating the concept of encapsulation from real life?

What types of join operators are you familiar with?

What is the main purpose of the Singleton pattern and when is it used?

Do you have experience writing and working with native SQL queries or similar low-level commands to a database?

Can you explain how the Singleton pattern is implemented and how it ensures a single instance of a class?

What types of arrays exist in programming?

Have you used subqueries inside other SQL queries when working with databases?

Can you list the main operators used for data retrieval in SQL?

Can you name the main types of tables used in databases?

Are you familiar with the concept of interfaces in programming?

Can you explain what PSR standards are in PHP and why they are needed?

Junior — Middle

МТСSimtech GroupИНДИНС+1

How is the guaranteed creation of only one instance of the Singleton class implemented?

Explain what Docker Compose is and how it is used to manage multi-container applications.

How to convert a data array into JSON format in your programming language?

Could you develop an interest in project management?

Can you name the main access modifiers and their features?

How often do you consider switching to a different field or specialization?

Can you list the main design patterns for classes?