Fix PHP/Node Backend JSON Bugs

I have a live application whose core runs on PHP while several service layers are written in Node.js. Everything works—until the JSON we pass between layers silently shifts and breaks the backend. Right now I only need bug fixes; no new features or tuning, just rock-solid stability... (Budget: ₹1500 - ₹12500 INR, Jobs: API Development, Backend Development, Git, JavaScript, JSON, Node.js, PHP, Socket IO)