Worked on documentation improvements for the kamranahmedse/developer-roadmap repository, focusing on PHP-specific learning resources. Addressed a broken link in the PHP Type Declarations documentation, ensuring readers could access the correct reference material. Enhanced the PHP Roadmap by updating memory management examples, providing clearer demonstrations of how the unset() function affects memory usage. These updates aimed to reduce confusion and support more reliable implementation decisions for learners and practitioners. The work involved technical writing, PHP code examples, and Markdown formatting, resulting in more accurate and accessible documentation that streamlines onboarding and helps users better understand PHP memory management concepts in practice.