# Sending and receiving messages in Amazon SQS with Amazon SDK for PHP Version 3
<a name="sqs-examples-send-receive-messages"></a>

To learn about Amazon SQS messages, see [Sending a Message to an SQS Queue](https://docs.amazonaws.cn/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-send-message.html) and [Receiving and Deleting a Message from an SQS Queue](https://docs.amazonaws.cn/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-receive-delete-message.html.html) in the Service Quotas User Guide.

The following examples show how to:
+ Deliver a message to a specified queue using [SendMessage](https://docs.amazonaws.cn/aws-sdk-php/v3/api/api-sqs-2012-11-05.html#sendmessage).
+ Retrieve one or more messages (up to 10) from a specified queue using [ReceiveMessage](https://docs.amazonaws.cn/aws-sdk-php/v3/api/api-sqs-2012-11-05.html#receivemessage).
+ Delete a message from a queue using [DeleteMessage](https://docs.amazonaws.cn/aws-sdk-php/v3/api/api-sqs-2012-11-05.html#deletemessage).

All the example code for the Amazon SDK for PHP is available [here on GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/php/example_code).

## Credentials
<a name="examplecredentials"></a>

Before running the example code, configure your Amazon credentials, as described in [Authenticating with Amazon using Amazon SDK for PHP Version 3](credentials.md). Then import the Amazon SDK for PHP, as described in [Installing the Amazon SDK for PHP Version 3](getting-started_installation.md).

## Send a message
<a name="send-a-message"></a>

 **Imports** 

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

use Aws\Exception\AwsException;
use Aws\Sqs\SqsClient;
```

 **Sample Code** 

```
$client = new SqsClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2012-11-05'
]);

$params = [
    'DelaySeconds' => 10,
    'MessageAttributes' => [
        "Title" => [
            'DataType' => "String",
            'StringValue' => "The Hitchhiker's Guide to the Galaxy"
        ],
        "Author" => [
            'DataType' => "String",
            'StringValue' => "Douglas Adams."
        ],
        "WeeksOn" => [
            'DataType' => "Number",
            'StringValue' => "6"
        ]
    ],
    'MessageBody' => "Information about current NY Times fiction bestseller for week of 12/11/2016.",
    'QueueUrl' => 'QUEUE_URL'
];

try {
    $result = $client->sendMessage($params);
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```

## Receive and delete messages
<a name="receive-and-delete-messages"></a>

 **Imports** 

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

use Aws\Exception\AwsException;
use Aws\Sqs\SqsClient;
```

 **Sample Code** 

```
$queueUrl = "QUEUE_URL";

$client = new SqsClient([
    'profile' => 'default',
    'region' => 'us-west-2',
    'version' => '2012-11-05'
]);

try {
    $result = $client->receiveMessage([
        'AttributeNames' => ['SentTimestamp'],
        'MaxNumberOfMessages' => 1,
        'MessageAttributeNames' => ['All'],
        'QueueUrl' => $queueUrl, // REQUIRED
        'WaitTimeSeconds' => 0,
    ]);
    if (!empty($result->get('Messages'))) {
        var_dump($result->get('Messages')[0]);
        $result = $client->deleteMessage([
            'QueueUrl' => $queueUrl, // REQUIRED
            'ReceiptHandle' => $result->get('Messages')[0]['ReceiptHandle'] // REQUIRED
        ]);
    } else {
        echo "No messages in queue. \n";
    }
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}
```