blocks|key|705441|text|对于当前的EC2实例，您是指运行在EC2上的PHP代码吗?您希望将这些元数据注入一些变量中以供使用？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|705442|还是您的意思是使用PHP创建了一个对象，例如：|705443|$ec2Client+=+new+Aws\Ec2\Ec2Client([
++++'region'+=>+'us-east-1',
++++'version'+=>+'latest'
]);|code-block|syntax|javascript|705444|如果您的意思是第二种方式，您可以像这样通过describeInstances访问这些数据：|offset|length|style|CODE|705445|$result+=+$ec2Client->describeInstances();
echo+"Instances:+\n";
foreach+($result['Reservations']+as+$reservation)+{
++++foreach+($reservation['Instances']+as+$instance)+{
++++++++echo+"InstanceId:+{$instance['InstanceId']}+-+{$instance['State']['Name']}+\n";
++++++++echo+"Availability+Zone:+{$instance['Placement']['AvailabilityZone']}+\n";
++++}
++++echo+"\n";
}|705446|还可以通过将参数添加到方法调用(如按类型或instanceId+)进行筛选。|705447|如果您只是在EC2实例上运行PHP代码，并且您需要该信息，您可以查看这个页面以获得一些选项：https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html|705448|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html^0|0|0|0|L|H|0|0|0|1A|2C|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|14|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|15|8|@$K|16|L|17|M|N]]|9|@]|A|$]]|$1|O|3|P|5|F|7|18|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1A|8|@]|9|@$K|1B|L|1C|1|1D]]|A|$]]|$1|U|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

By current EC2 instance, are you referring to PHP code running on an EC2, and you would like to inject that metadata into some variables for use?
Or do you mean you have an object created with the PHP SDK such as with something like:
<pre><code>$ec2Client = new Aws\Ec2\Ec2Client([
 'region' =&gt; 'us-east-1',
 'version' =&gt; 'latest'
]);
</code></pre>
If you mean the second way, you can access that data through <code>describeInstances</code> like this:
<pre><code>$result = $ec2Client-&gt;describeInstances();
echo &quot;Instances: \n&quot;;
foreach ($result['Reservations'] as $reservation) {
 foreach ($reservation['Instances'] as $instance) {
 echo &quot;InstanceId: {$instance['InstanceId']} - {$instance['State']['Name']} \n&quot;;
 echo &quot;Availability Zone: {$instance['Placement']['AvailabilityZone']} \n&quot;;
 }
 echo &quot;\n&quot;;
}
</code></pre>
You can also filter by adding parameters to the method call such as by type or instanceId.
If you're just running PHP code on the EC2 instance and you want that info, you can check out this page for some options: <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html" rel="nofollow noreferrer">https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html</a>

blocks|key|705467|text|我不认为这是可能的。IMDSv2信息(如AZ、实例-id、实例类型等)可以通过https://169.254.169.254读取，如果您查看SDK的源代码，它只通过IMDSv2+(https://github.com/aws/aws-sdk-php/search?q=169.254)获取临时凭据，并且不允许任意的IMDSv2查询。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|705468|除非我遗漏了什么，否则您需要自己提取这些数据，或者使用第三方库在PHP中为您提供这些数据。|705469|entityMap|0|LINK|mutability|MUTABLE|url|https://169.254.169.254/|1|https://github.com/aws/aws-sdk-php/search?q=169.254^0|13|N|0|2I|1F|1|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]|$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

I don't think this is possible at all. IMDSv2 info like AZ, instance-id, instance-type, etc is readable via <a href="https://169.254.169.254" rel="nofollow noreferrer">https://169.254.169.254</a> and if you look into the source code for the SDK, it only pulls temporary credentials via IMDSv2 (<a href="https://github.com/aws/aws-sdk-php/search?q=169.254" rel="nofollow noreferrer">https://github.com/aws/aws-sdk-php/search?q=169.254</a>)
and does not allow arbitrary IMDSv2 queries.
Unless I'm missing something, you need to pull this data yourself or use some 3rd-party library which does that for you in PHP.

blocks|key|823010|text|JasonQ提出的解决方案对于获取帐户中所有实例和应用程序的信息非常有用。但是，它并没有告诉您什么信息描述了由当前进程真正执行的实例。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|823011|为此，您必须使用IMDSv2，它需要两个CURL命令，第一个命令获取令牌，第二个命令获取当前实例的实际元数据。|823012|因此，在PHP中，代码可以是：|823013|$ch+=+curl_init();

//+get+a+valid+TOKEN
$headers+=+array+(
++++++++'X-aws-ec2-metadata-token-ttl-seconds:+10'+);
$url+=+"http://169.254.169.254/latest/api/token";

curl_setopt(+$ch,+CURLOPT_URL,+$url+);
curl_setopt(+$ch,+CURLOPT_HTTPHEADER,+$headers+);
curl_setopt(+$ch,+CURLOPT_RETURNTRANSFER,+true+);
curl_setopt(+$ch,+CURLOPT_CUSTOMREQUEST,+"PUT"+);
curl_setopt(+$ch,+CURLOPT_URL,+$url+);
$token+=+curl_exec(+$ch+);

echo+"+TOKEN+:"+.+$token;

//+then+get+metadata+of+the+current+instance+
$headers+=+array+(
++++++++'X-aws-ec2-metadata-token:+'.$token+);
$url+=+"http://169.254.169.254/latest/dynamic/instance-identity/document";

curl_setopt(+$ch,+CURLOPT_URL,+$url+);
curl_setopt(+$ch,+CURLOPT_HTTPHEADER,+$headers+);
curl_setopt(+$ch,+CURLOPT_RETURNTRANSFER,+true+);
curl_setopt(+$ch,+CURLOPT_CUSTOMREQUEST,+"GET"+);
$result+=+curl_exec(+$ch+);

echo+"+RESULT+:"+.+$result;|code-block|syntax|javascript|823014|你要做的就是提取想要的信息。您还可以请求一个唯一的信息，例如具有更具体url的实例id，如：|823015|$url+=+"http://169.254.169.254/latest/meta-data/instance-id";|823016|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|T|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|V|8|@]|9|@]|A|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

The solution proposed by JasonQ-AWS is useful to get information about all instances and applications in your account. However, it does not tell you what information describes the instance that is really executed by the current process.
For that you have to use IMDSv2 which requires two CURL commands, the first one to get a TOKEN and the second one to get the actual metadata of the current instance.
In PHP the code can therefore be :
<pre><code>$ch = curl_init();

// get a valid TOKEN
$headers = array (
 'X-aws-ec2-metadata-token-ttl-seconds: 10' );
$url = &quot;http://169.254.169.254/latest/api/token&quot;;

curl_setopt( $ch, CURLOPT_URL, $url );
curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch, CURLOPT_CUSTOMREQUEST, &quot;PUT&quot; );
curl_setopt( $ch, CURLOPT_URL, $url );
$token = curl_exec( $ch );

echo &quot;&lt;p&gt; TOKEN :&quot; . $token;

// then get metadata of the current instance 
$headers = array (
 'X-aws-ec2-metadata-token: '.$token );
$url = &quot;http://169.254.169.254/latest/dynamic/instance-identity/document&quot;;

curl_setopt( $ch, CURLOPT_URL, $url );
curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch, CURLOPT_CUSTOMREQUEST, &quot;GET&quot; );
$result = curl_exec( $ch );

echo &quot;&lt;p&gt; RESULT :&quot; . $result;
</code></pre>
All you have to do is to extract the desired information. You can also ask for a unique information, such as the instance id with a more specific url like :
<pre><code>$url = &quot;http://169.254.169.254/latest/meta-data/instance-id&quot;;
</code></pre>

I would like to get the instance metadata (like AZ) for the current EC2, using <a href="https://aws.amazon.com/sdk-for-php/" rel="nofollow noreferrer">AWS SDK</a>.
I was able to find <a href="https://stackoverflow.com/questions/50773669/how-to-get-aws-ec2-instance-id-in-php">an alternative solution</a>, but it is not using the SDK just a <code>file_get_contents</code>
How is it possible with the SDK?

How is it possible to get instance metadata using PHP AWS SDK?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我希望使用EC2获取当前的实例元数据(如AZ)。我找到了，但是它不是使用SDK --只是一个file_get_contents --怎么可能使用SDK呢？

问如何使用PHP获取实例元数据？
EN

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问如何使用PHP获取实例元数据？EN