Hi, I have recently done similar project which you can see at my profile as proof.
I have extensive experience in PHP which is key to your project. I have the skills to fetch and process emails effectively, and can quickly develop a process that checks if each email has an attachment, storing the relevant boolean value in an array as required. I guarantee my deliverables comply with the highest standard, ensuring you end up with an accurate array of emails with annotations showing attachment availability.
In addition to my PHP competence, I possess a thorough understanding of web programming, HTML, JavaScript, MySQL among other vital skills. This means I'm excellently well-positioned to tackle the various aspects involved in this task.
As for your tight deadline of 3 seconds for display time - I am up to the challenge! Throughout my career, I've been relied upon to deliver fast yet precision work – exactly what your project demands. Choosing me would not only guarantee a quality output but also substantial cost-effectiveness. Looking forward to working on this project and delivering results that exceed your expectations.