1. Go to this page and download the library: Download soneso/stellar-php-sdk library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
soneso / stellar-php-sdk example snippets
$payment = (new PaymentOperationBuilder($receiverId, Asset::native(), '100'))->build();
$tx = (new TransactionBuilder($account))->addOperation($payment)->build();
$tx->sign($senderKeyPair, Network::testnet());
$sdk->submitTransaction($tx);
$asset = Asset::createNonNativeAsset('USDC', $issuerAccountId);
$trustOp = (new ChangeTrustOperationBuilder($asset))->build();
$tx = (new TransactionBuilder($account))->addOperation($trustOp)->build();
$tx->sign($accountKeyPair, Network::testnet());
$sdk->submitTransaction($tx);