PHP Birth Certificate code to create Birth Certificate

birth_certificate.php

// Include the web3.php library
require 'vendor/autoload.php';

use Web3\Web3;
use Web3\Contract;

// Check if the request method is POST
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Retrieve the data from the POST request
    $recipient = $_POST['recipient'];
    $childName = $_POST['childName'];
    $dateOfBirth = $_POST['dateOfBirth'];
    $placeOfBirth = $_POST['placeOfBirth'];
    $sex = $_POST['sex'];
    $parent1Name = $_POST['parent1Name'];
    $parent2Name = $_POST['parent2Name'];

    // Connect to an Ethereum node
    $web3 = new Web3('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');

    // Define the contract ABI and address
    $contractAbi = json_decode('[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"string","name":"childName","type":"string"},{"internalType":"uint256","name":"dateOfBirth","type":"uint256"},{"internalType":"string","name":"placeOfBirth","type":"string"},{"internalType":"string","name":"sex","type":"string"},{"internalType":"string","name":"parent1Name","type":"string"},{"internalType":"string","name":"parent2Name","type":"string"}],"name":"issueBirthCertificate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"_birthCertificates","outputs":[{"internalType":"string","name":"childName","type":"string"},{"internalType":"uint256","name":"dateOfBirth","type":"uint256"},{"internalType":"string","name":"placeOfBirth","type":"string"},{"internalType":"string","name":"sex","type":"string"},{"internalType":"string","name":"parent1Name","type":"string"},{"internalType":"string","name":"parent2Name","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_tokenCounter","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]');
    $contractAddress = 'CONTRACT_ADDRESS';

    // Create a contract instance
    $contract = new Contract($web3->provider, $contractAbi);
    $contract->at($contractAddress, function ($err, $instance) use ($recipient, $childName, $dateOfBirth, $placeOfBirth, $sex, $parent1Name, $parent2Name) {
        if ($err !== null) {
            echo "Error: " . $err;
            return;
        }

        // Call the issueBirthCertificate function
        $instance->issueBirthCertificate($recipient, $childName, $dateOfBirth, $placeOfBirth, $sex, $parent1Name, $parent2Name, function ($err, $result) {
            if ($err !== null) {
                echo "Error: " . $err;
                return;
            }

            echo "Transaction hash: " . $result;
        });
    });
}