rekogition-php-sdk.php

<?php
use Aws\Rekognition\RekognitionClient;

$rekognition = new RekognitionClient([
    'version' => 'latest',
    'region'  => 'AWS_REGION',
]);

$params = [
    'Attributes' => ['DEFAULT'],
    'Image' => [
        'S3Object' => [
            'Bucket' => 'S3_BUCKET',
            'Name'   => 'OBJECT_KEY',
        ],
    ],
];

$result = $rekognition->detectFaces($params);