按照API写的来完全不能获得!也访问失败
$secretKey = 'Gu5t9xGARNpq86cd98joQYCN3EXAMPLE'; $srcStr = 'GETcvm.tencentcloudapi.com/?Action=DescribeInstances&InstanceIds.0=ins-09dx96dg&Limit=20&Nonce=11886&Offset=0&Region=ap-guangzhou&SecretId=AKIDz8krbsJ5yKBZQpn74WFkmLPx3EXAMPLE&Timestamp=1465185768&Version=2017-03-12'; $signStr = base64_encode(hash_hmac('sha1', $srcStr, $secretKey, true)); echo $signStr;