Learn about design patterns in software design, including their definition, types, and benefits. Understand how creational, structural, and behavioral patterns provide reusable solutions to common problems, improving maintainability and flexibility in software development. Discover how design patterns can be applied in real-world projects for efficient coding.

Master responsive design by leveraging the `` tag to adapt your website seamlessly to various screen sizes, devices, and orientations, ensuring a great user experience. Learn the tag's basic syntax, common attributes, and best practices to create flexible and adaptable layouts. Discover how to control zooming, scaling, and viewport settings for optimal website display.

Implementing file versioning and processing in Yii applications to maintain a history of changes made to uploaded files and perform various operations on uploaded files.