What PHP version is required?

PHP 7.4 or later. The iexbase/tron-api package requires the GMP and bcmath extensions.

Why do I need a Node.js helper for signing?

The iexbase/tron-api PHP library does not expose tronWeb.trx.signMessageV2(), which is what the TronEnergy API requires. The Node.js helper is a small wrapper that does the signing and outputs the signature for PHP to read.

PHP集成 | TronEnergy Docs

使用 PHP 进行完全集成 iexbase/tron-api 库中的每一步都是一个独立的代码块，您可以将其复制到您的项目中。它适用于任何 PHP 框架或纯 PHP 代码。

先决条件： PHP 7.4+、Composer、ext-gmp 和 ext-bcmath 已启用、已充值的Tron钱包。

关于 PHP 登录： TronEnergy API需要使用钱包签名 tronWeb.trx.signMessageV2()。这 iexbase/tron-api 该库并未公开此签名原语，因此本指南使用了一个小型 Node.js 辅助函数来实现签名步骤。其他所有操作（发送TRX 、调用API 、发送USDT ）均在 PHP 中完成。如果您已有纯 PHP 签名方案，且该方案能够生成有效的 signMessageV2 签名，则可以替换此辅助函数，而无需更改任何其他步骤。

流程

无需API密钥，无需注册。您的代码会将TRX链上发送到TronEnergy支付地址，签署一条证明所有权的报文，然后领取委托。 Energy大约 3 秒后到账。之后，您的代码会使用委托的能量发送USDT 。

发送TRX

向链上支付地址发送 4 个或更多TRX （最少 4 个，最多 1000 个）。

符号

对 tx_hash:delegate_to 进行签名，以证明您是发送方。

宣称

使用 POST /delegate 命令发送交易哈希和签名。 Energy将在大约 3 秒后到达。

定价是线性的：每TRX 16,250 Energy 。 Minimum order 4 TRX (65,000 Energy — one standard USDT transfer), maximum 1,000 TRX (16.25M Energy). The amount you send determines exactly how much Energy is delegated back — no tiers, no packages. For a single standard transfer, use $trxAmount = 4. For a new-wallet transfer, use 8. For batch work, use more. The code below uses a $trxAmount variable so you can change it in one place.

步步

1. 安装

composer

composer require iexbase/tron-api

2. 设置

setup.php
require_once 'vendor/autoload.php';

use IEXBase\TronAPI\Tron;

$tron = new Tron();
$tron->setPrivateKey('YOUR_PRIVATE_KEY');
$tron->setAddress('YOUR_WALLET_ADDRESS');

$api  = 'https://api.tronnrg.com';
$addr = 'TFqUiCu1JwLHHnBNeaaVKH7Csm4aA3YhZx'; // API payment address
$usdt = 'TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t'; // USDT contract

切勿将凭据硬编码到代码中。 Use environment variables or a secrets manager. The example above is for illustration only.

3. 获取付款信息（可选）

get payment info
// Get pricing and payment address (optional, energy is always available)
$supply = json_decode(
    file_get_contents("${api}/supply"),
    true
);

echo "Pay to: " . $supply['pay_to'] . "\n";
echo "Energy per TRX: " . $supply['energy_per_trx'] . "\n";

4. 发送TRX

send TRX
// Send TRX to the API payment address — pricing is linear.
// 16,250 energy per TRX. Min 4 TRX, max 1,000 TRX.
//   $trxAmount = 4    → 65,000 energy   (standard USDT transfer)
//   $trxAmount = 8    → 130,000 energy  (new wallet transfer)
//   $trxAmount = 40   → 650,000 energy  (10 standard transfers)
//   $trxAmount = 1000 → 16,250,000 energy (max)

$trxAmount = 4;

$payment = $tron->sendTrx($addr, $trxAmount);

if (!isset($payment['result']) || !$payment['result']) {
    throw new Exception('TRX transfer failed');
}

$txHash = $payment['txid'];
echo "Payment sent: ${txHash}\n";

5. 签署留言

API需要一个签名来证明发送TRX钱包正在请求委托。我们使用一个简单的 Node.js 辅助函数来实现这一点。将其保存为 sign.js 在您的 PHP 文件旁边：

sign.js (run with node)
// Usage: node sign.js <tx_hash> <delegate_to>
// Outputs the signature to stdout. Reads private key from TRON_PRIVATE_KEY env var.
const { TronWeb } = require('tronweb');

const [, , txHash, delegateTo] = process.argv;
const tronWeb = new TronWeb({
  fullHost: 'https://api.trongrid.io',
  privateKey: process.env.TRON_PRIVATE_KEY,
});

tronWeb.trx.signMessageV2(`${txHash}:${delegateTo}`)
  .then(sig => process.stdout.write(sig))
  .catch(e => { console.error(e.message); process.exit(1); });

在同一文件夹中安装TronWeb ： npm install tronweb然后从 PHP 调用它：

sign from PHP
// Both the sender (in $tron) and the signer must be the SAME wallet.
// Make sure TRON_PRIVATE_KEY in your environment matches the wallet that sent the TRX.
$delegateTo = 'TWalletThatNeedsEnergy';

$signature = trim(shell_exec(
    sprintf('node sign.js %s %s',
        escapeshellarg($txHash),
        escapeshellarg($delegateTo)
    )
));

if (!$signature) {
    throw new Exception('Signing failed. Check that node and tronweb are installed and TRON_PRIVATE_KEY is set.');
}

echo "Signed: " . substr($signature, 0, 20) . "...\n";

6. 争取代表团席位

claim delegation
// $txHash, $delegateTo, and $signature are all defined in the previous steps.
$ch = curl_init("${api}/delegate");
curl_setopt_array($ch, [
    CURLOPT_POST           => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS     => json_encode([
        'tx_hash'     => $txHash,
        'delegate_to' => $delegateTo,
        'signature'   => $signature,
    ]),
]);

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$result = json_decode($response, true);

if (isset($result['error'])) {
    throw new Exception("Delegation failed: " . $result['message']);
}

echo "Delegated: " . $result['energy'] . " energy\n";
echo "Ref: " . $result['ref'] . "\n";

7. 发送USDT

send USDT
// Send USDT using the delegated energy
$usdtContract = $tron->contract($usdt);

// Amount in smallest unit (6 decimals for USDT)
// 10 USDT = 10 * 1,000,000 = 10000000
$amount    = 10 * pow(10, 6);
$recipient = 'TRecipientAddress';

$transfer = $usdtContract->transfer($recipient, $amount);

echo "USDT sent: " . $transfer . "\n";

错误处理

将声明调用封装在一个小型重试辅助函数中。最常见的错误是 payment_verification_failed 当交易尚未在链上建立索引时——请等待几秒钟，然后重试一次。

error handling
function claimDelegation($api, $txHash, $delegateTo, $signature, $retries = 3) {
    for ($i = 0; $i < $retries; $i++) {
        $ch = curl_init("${api}/delegate");
        curl_setopt_array($ch, [
            CURLOPT_POST           => true,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_HTTPHEADER     => ['Content-Type: application/json'],
            CURLOPT_POSTFIELDS     => json_encode([
                'tx_hash'     => $txHash,
                'delegate_to' => $delegateTo,
                'signature'   => $signature,
            ]),
        ]);

        $result = json_decode(curl_exec($ch), true);
        curl_close($ch);

        if (!isset($result['error'])) {
            return $result; // Success
        }

        switch ($result['error']) {
            case 'payment_verification_failed':
                // Most common: tx not yet indexed. Wait and retry.
                sleep(3);
                continue 2;

            case 'hash_already_used':
                throw new Exception('This tx hash has already been claimed');

            case 'signature_mismatch':
                throw new Exception('Signer does not match payment sender. Sign with the same wallet that sent TRX.');

            case 'delegation_failed':
                // Refund queued automatically if payment was verified
                throw new Exception('Delegation failed: ' . $result['message']);

            default:
                throw new Exception($result['message'] ?? 'Unknown error');
        }
    }

    throw new Exception('Transaction not found after retries');
}

完整示例

delegate-energy.php
<?php
require_once 'vendor/autoload.php';

use IEXBase\TronAPI\Tron;

$tron = new Tron();
$tron->setPrivateKey(getenv('TRON_PRIVATE_KEY'));
$tron->setAddress(getenv('TRON_WALLET_ADDRESS'));

$api  = 'https://api.tronnrg.com';
$addr = 'TFqUiCu1JwLHHnBNeaaVKH7Csm4aA3YhZx';

try {
    $delegateTo = 'TRecipientWallet';
    $trxAmount = 4; // min 4, max 1000 — energy = trxAmount × 16,250

    // 1. Send TRX (linear pricing: 16,250 energy per TRX)
    $payment = $tron->sendTrx($addr, $trxAmount);
    $txHash  = $payment['txid'];
    echo "Payment: ${txHash}\n";

    // 2. Sign via Node helper (see Step 5 above)
    $signature = trim(shell_exec(
        sprintf('node sign.js %s %s',
            escapeshellarg($txHash),
            escapeshellarg($delegateTo)
        )
    ));
    if (!$signature) throw new Exception('Signing failed');

    // 3. Claim delegation (with retry)
    $result = claimDelegation($api, $txHash, $delegateTo, $signature);
    echo "Energy: " . $result['energy'] . "\n";
    echo "Ref: "    . $result['ref'] . "\n";

    // 4. Send USDT (energy is now available)
    $contract = $tron->contract('TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t');
    $transfer = $contract->transfer($delegateTo, 10 * pow(10, 6));
    echo "USDT sent: ${transfer}\n";

} catch (Exception $e) {
    echo "Error: " . $e->getMessage() . "\n";
}