PHP Binance Smart Chain Integration

I already have a working PHP application and now need to weave Binance Smart Chain directly into it. The goal is to add new blockchain capabilities—primarily transaction and smart-contract interactions—so the system can read on-chain data and push signed transactions without leaving the current tech stack.

Here’s what I need from you:

1. Connect my codebase to both BSC testnet and mainnet via JSON-RPC (or a reliable node provider) using a mature PHP Web3 library.
2. Deliver clear, well-documented PHP classes or functions that let me:
• call a contract method
• send BEP-20 token transfers
• fetch basic block / transaction info
3. Supply a concise README that explains configuration (keys, RPC URL, gas limits) and a quick test script.

Acceptance criteria: when I run your sample script the transaction shows as confirmed on testnet BscScan, and your helper functions slot smoothly into my existing project with no namespace conflicts.

If you’ve done similar BSC or Ethereum JSON-RPC work in PHP, please let me see a code snippet or repo so I can gauge style and reliability.