本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# 使用第 3 適用於 PHP 的 AWS SDK 版的 IAM 政策
<a name="iam-examples-working-with-policies"></a>

您將授與建立政策的權限給使用者。政策為列出使用者可執行的動作以及這些動作可影響的資源之清單文件，在預設情況下，未明確允許的任何動作或資源將被拒絕。可建立政策並連接至使用者、使用者群組、使用者擔任的角色以及資源。

下列範例示範如何：
+ 使用 [CreatePolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#createpolicy) 建立受管政策。
+ 使用 [AttachRolePolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#attachrolepolicy) 附加政策到角色。
+ 使用 [AttachUserPolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#attachuserpolicy) 附加政策到使用者。
+ 使用 [AttachGroupPolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#attachgrouppolicy) 將政策連接到角色。
+ 使用 [DetachRolePolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#detachrolepolicy) 移除角色政策。
+ 使用 [DetachUserPolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#detachuserpolicy) 移除使用者政策。
+ 使用 [DetachGroupPolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#detachgrouppolicy) 移除群組政策。
+ 使用 [DeletePolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#deletepolicy) 刪除受管政策。
+ 使用 [DeleteRolePolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#deleterolepolicy) 刪除角色政策。
+ 使用 [DeleteUserPolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#deleteuserpolicy) 刪除使用者政策。
+ 使用 [DeleteGroupPolicy](https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-iam-2010-05-08.html#deletegrouppolicy) 刪除群組政策。

您可以在 GitHub 適用於 PHP 的 AWS SDK 上取得 的所有範例程式碼。 [ GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/php/example_code)

## 登入資料
<a name="examplecredentials"></a>

執行範例程式碼之前，請先設定您的 AWS 登入資料，如中所述[AWS 使用第 3 適用於 PHP 的 AWS SDK 版向 驗證](credentials.md)。然後匯入 適用於 PHP 的 AWS SDK，如 中所述[安裝第 3 適用於 PHP 的 AWS SDK 版](getting-started_installation.md)。

## 建立政策
<a name="create-a-policy"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

$myManagedPolicy = '{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "logs:CreateLogGroup",
            "Resource": "RESOURCE_ARN"
        },
        {
            "Effect": "Allow",
            "Action": [
            "dynamodb:DeleteItem",
            "dynamodb:GetItem",
            "dynamodb:PutItem",
            "dynamodb:Scan",
            "dynamodb:UpdateItem"
        ],
            "Resource": "RESOURCE_ARN"
        }
    ]
}';

try {
    $result = $client->createPolicy(array(
        // PolicyName is required
        'PolicyName' => 'myDynamoDBPolicy',
        // PolicyDocument is required
        'PolicyDocument' => $myManagedPolicy
    ));
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 將政策連接至角色
<a name="attach-a-policy-to-a-role"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

$roleName = 'ROLE_NAME';

$policyName = 'AmazonDynamoDBFullAccess';

$policyArn = 'arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess';

try {
    $attachedRolePolicies = $client->getIterator('ListAttachedRolePolicies', ([
        'RoleName' => $roleName,
    ]));
    if (count($attachedRolePolicies) > 0) {
        foreach ($attachedRolePolicies as $attachedRolePolicy) {
            if ($attachedRolePolicy['PolicyName'] == $policyName) {
                echo $policyName . " is already attached to this role. \n";
                exit();
            }
        }
    }
    $result = $client->attachRolePolicy(array(
        // RoleName is required
        'RoleName' => $roleName,
        // PolicyArn is required
        'PolicyArn' => $policyArn
    ));
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 將政策連接至使用者
<a name="attach-a-policy-to-a-user"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

$userName = 'USER_NAME';

$policyName = 'AmazonDynamoDBFullAccess';

$policyArn = 'arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess';

try {
    $attachedUserPolicies = $client->getIterator('ListAttachedUserPolicies', ([
        'UserName' => $userName,
    ]));
    if (count($attachedUserPolicies) > 0) {
        foreach ($attachedUserPolicies as $attachedUserPolicy) {
            if ($attachedUserPolicy['PolicyName'] == $policyName) {
                echo $policyName . " is already attached to this role. \n";
                exit();
            }
        }
    }
    $result = $client->attachUserPolicy(array(
        // UserName is required
        'UserName' => $userName,
        // PolicyArn is required
        'PolicyArn' => $policyArn,
    ));
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 將政策連接至群組
<a name="attach-a-policy-to-a-group"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

try {
    $result = $client->attachGroupPolicy(array(
        // GroupName is required
        'GroupName' => 'string',
        // PolicyArn is required
        'PolicyArn' => 'string',
    ));
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 分離使用者政策
<a name="detach-a-user-policy"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

try {
    $result = $client->detachUserPolicy([
        // UserName is required
        'UserName' => 'string',
        // PolicyArn is required
        'PolicyArn' => 'string',
    ]);
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 分離群組政策
<a name="detach-a-group-policy"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

try {
    $result = $client->detachGroupPolicy([
        // GroupName is required
        'GroupName' => 'string',
        // PolicyArn is required
        'PolicyArn' => 'string',
    ]);
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 刪除政策
<a name="delete-a-policy"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

try {
    $result = $client->deletePolicy(array(
        // PolicyArn is required
        'PolicyArn' => 'string'
    ));
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 刪除角色政策
<a name="delete-a-role-policy"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

try {
    $result = $client->deleteRolePolicy([
        // RoleName is required
        'RoleName' => 'string',
        // PolicyName is required
        'PolicyName' => 'string'
    ]);
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 刪除使用者政策
<a name="delete-a-user-policy"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

try {
    $result = $client->deleteUserPolicy([
        // UserName is required
        'UserName' => 'string',
        // PolicyName is required
        'PolicyName' => 'string',
    ]);
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## 刪除群組政策
<a name="delete-a-group-policy"></a>

 **匯入** 

```
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Iam\IamClient;
```

 **範例程式碼** 

```
$client = new IamClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2010-05-08'
]);

try {
    $result = $client->deleteGroupPolicy(array(
        // GroupName is required
        'GroupName' => 'string',
        // PolicyName is required
        'PolicyName' => 'string',
    ));
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```