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Informations about the package simple-web3-php
simple-web3-php
A php interface for interacting with the Ethereum blockchain and ecosystem.
Features
- PHP >= 7.4
- Customizable curl calls
- Call: get net state
- Send signed transactions
- Batch call requests and signed transactions
- Address & private key creation
- Message signing
- Full ABIv2 encode/decode
- Contract creation
- Contract interaction (call/send)
- Contract Events/logs with filters
- Support for ERC20 contracts with non-nominative decimal values
- Examples provided interacting with simple types, strings, tuples, arrays, arrays of tuples with arrays, multi-dimension arrays...
- EIP712 Typed structured data hashing
Install
Latest stable release
Or you can add this line in composer.json
Development (main branch)
Or you can add this line in composer.json
Usage
New instance
Convert values
- Most calls return hex or BigNumber to represent numbers.
- Most calls expect numeric parameters represented as BigNumbers.
Hex to Big Number:
Number to BigNumber:
Get average-human readable string representation from Big Number:
Format 1 ether to wei (unit required for ether values in transactions):
Get average-human readable string representation from a value conversion:
ABI Encoding
Manually encode parameters:
Keccak 256 hash:
General ethereum block information call:
Refresh gas price
Estimate gas price (from send params)
Send 0.001 ether to address
Batch calls & transactions
Account
Contract interaction
Contract events (logs)
Contract creation (deployment)
Usual required includes
Provided Examples
In the folder Examples/ there are some extended examples with call & send examples:
- example.call.php
- example.send.php
- example.batch.php
- example.account.php
- example.contract_creation.php
-
example.erc20.php
Example configuration
To execute the examples you will need to add some data to the configuration file (example.config.php).
The example is pre-configured to work with an infura endpoint:
Just add your infura project keys. If you have not configured the api secret key requisite, just ignore it.
If you are using a private endpoint, just ignore all the infura definitions:
To enable contract interaction, set the contract data (address & ABI). The file is preconfigured to work with our example contract, already deployed on ropsten.
To enable transaction sending & signing, enter a valid pair of address and private key. Please take this advises before continuing:
- The address must be active on the ropsten network and have some ether available to send the transactions.
- Double check that you are using a test endpoint, otherwise you will be spending real eth to send the transactions
- Be sure to keep your private key secret!
Example contract
The solidity contract used in this example is available too in the same folder: swp_contract.sol
Example disclaimer
Don't base your code structure on this example. This example does not represent clean / efficient / performant aproach to implement them in a production environment. It's only aim is to show some of the features of Simple Web3 Php.
Modules
- Utils library forked & extended from web3p/web3.php
- Transaction signing: kornrunner/ethereum-offline-raw-tx
- sha3 encoding: from kornrunner/keccak
- BigNumber interaction: phpseclib3\Math
- Asymetric key handling: simplito/elliptic-php
TODO
- Node accounts creation / interaction
License
MIT
DONATIONS (ETH)
All versions of simple-web3-php with dependencies
kornrunner/keccak Version ~1
phpseclib/phpseclib Version ~2.0.30
simplito/elliptic-php Version ^1.0