What is an immutable object?
Middle
553
PHP
What are magic methods in PHP?
Junior
552
How did the decision come about that PHP does not support multiple inheritance?
Middle+
550
What are the advantages of hash indexes and B-tree indexes?
Middle
539
What are some common encoding methods in development?
Junior
533
What is partitioning in the context of databases?
Middle
512
What is the difference between coupling and cohesion in programming?
Middle
506
What is the difference between the 'adapter' and 'decorator' patterns?
Middle+
488
What types of locks exist in SQL?
Middle
480
What is the benefit of using namespaces in PHP?
Junior
478
How to optimize application deployment time in Docker?
Middle+
475
How are immutability and purity related?
Middle+
472
What problems can arise when using the JOIN operator in SQL?
Middle
471
What types of arrays exist in PHP?
Junior
470
How does referential integrity work in databases?
Middle
467
What are the disadvantages of asynchronous encryption?
Senior
465
What is a composite index?
Middle
465
How to calculate the result of a function if it performs many different actions inside?
Junior
465
What is referential integrity?
Middle
463
What are lambda functions and anonymous functions? Tell about them.
Junior
463