What professional literature or resources have you studied to improve your qualifications?

To improve my PHP skills, I studied the following resources:

• Official PHP documentation (php.net) — the primary source of information about the language's functions and capabilities.
• Books:
  • "PHP Objects, Patterns, and Practice" — for understanding object-oriented programming and design patterns.
  • "Modern PHP" — for mastering modern language features and best practices.
• Online courses and platforms such as Codecademy, Udemy, where you can practice on real tasks.
• Communities and forums (Stack Overflow, PHP Freaks) — for solving specific problems and sharing experiences.

Regular reading of articles and blogs dedicated to PHP helps stay updated on new trends and improve skills.