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A PHP library for interacting with ERC-20 smart contracts on the Ethereum blockchain. This library uses the ethereum-php package for RPC communication and EVM interactions.
Features
Fetch token metadata (name, symbol, decimals, total supply).
Retrieve account balances and allowances.
Encode data for standard ERC-20 transactions (transfer, transferFrom, approve).
Support for custom/extended ERC-20 ABIs.
Fully compatible with PHP 8.5+.
Requirements
PHP: ^8.5
Extensions:openssl, gmp, bcmath
Installation
Install the package via Composer:
Usage
Initialization
To start, you need an Ethereum RPC client (e.g., Geth or an Infura/Alchemy endpoint) and the Erc20 handler.
Token Metadata
Balances and Allowances
Encoding Transactions
This library helps you encode the data field for Ethereum transactions.
Extending for Custom ABIs
If you are dealing with a contract that follows ERC-20 but has additional methods, you can extend Erc20ContractBase.
Testing
The library includes a PHPUnit test suite. To run the tests, ensure you have dependencies installed:
License
This package is open-source software licensed under the MIT license.
Composer command for our command line client (download client)This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free.Standard composer command
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