Ben Stone Zhang developed native HEIF and HEIC image format support for PHP’s getimagesize function in the php/php-src repository, expanding the function’s ability to accurately report dimensions and MIME types for modern image formats. He implemented this feature using C programming, focusing on image processing and PHP extension development to integrate the new formats directly into the core codebase. This work addressed the need for improved media handling in PHP, reducing reliance on external tools and workarounds. The project demonstrated a focused, in-depth approach to feature development, enhancing the developer experience and aligning with ongoing efforts to modernize PHP’s image capabilities.