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hash_hmac 是 PHP 中用于生成基于密钥的哈希（HMAC）的方法。它结合了哈希函数和一个密钥，可以用于数据完整性和身份验证的场景。
基本用法
以下是如何使用 hash_hmac 的基本示例：
<?php
// 输入数据
$data = '1730187103326{"id":"evt_hkpd6zzxgh18sigbqh4_i5o34e","name":"payment_intent.succeeded","account_id":"acct_rGL_IoGyNzCfKN59a_mlDg","data":{"object":{"amount":38,"base_amount":38,"base_currency":"HKD","captured_amount":38,"created_at":"2024-10-27T11:42:14+0000","currency":"HKD","customer_id":"cus_hkpd78g4xh1141c0hf5","descriptor":"thegameclear","id":"int_hkpd4fmk6h18si5o34e","latest_payment_attempt":{"amount":38,"authentication_data":{"avs_result":"U","cvc_result":"U","ds_data":[],"fraud_data":{"action":"ACCEPT","risk_factors":[],"score":"0"}},"captured_amount":38,"created_at":"2024-10-27T11:42:18+0000","currency":"HKD","expires_at":"2024-10-27T11:56:18+0000","id":"att_hkpdwrjb6h18si7vewq_i5o34e","merchant_order_id":"F2024102719421427499854741005292","payment_intent_id":"int_hkpd4fmk6h18si5o34e","payment_method":{"alipayhk":{"flow":"mobile_web","os_type":"android","user_id":"210220900023343780022"},"type":"alipayhk"},"payment_method_options":{"card":[]},"payment_method_transaction_id":"20241027194010800100160410255062588","provider_transaction_id":"2024102719074101000990013366064","refunded_amount":0,"settle_via":"airwallex","status":"CAPTURE_REQUESTED","updated_at":"2024-10-27T11:42:32+0000"},"merchant_order_id":"F2024102719421427499854741005292","request_id":"241027194214322302","return_url":"https://api-pay.thegameclear.com/pay_for_web_third/notify/airwallex/sync_pay_notify?order_number=F2024102719421427499854741005292&sign=53a3b64ce1b05a6ca24c8b3218b00716","status":"SUCCEEDED","updated_at":"2024-10-27T11:42:32+0000"}},"created_at":"2024-10-27T11:42:32+0000","version":"2024-06-30"}2881bebb387796d05c8931156a822ec151dfe57b0b41cc4d35b42e15ac41ac18';
// 密钥
$key = 'your_secret_key';
// 计算 HMAC
$hmac = hash_hmac('sha256', $data, $key);
// 输出 HMAC
echo $hmac;
?>
PHP
说明
hash_hmac的第一个参数是你希望使用的哈希算法，这里使用的是sha256。- 第二个参数是需要进行哈希的数据。
- 第三个参数是密钥。
请确保将 'your_secret_key' 替换为你实际使用的密钥。运行该代码，你将获得输入数据的 HMAC 哈希值。
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