如何使用适用于PHP的AWS开发工具包显示调试信息

Question

我在调试模式下使用适用于PHP的AWS开发工具包。 但是我看不到控制台上的调试信息。 我想观看AWS开发工具包中的调用堆栈。

我的代码是

<?php

require_once('./vendor/autoload.php');
use Aws\Sns\SnsClient;

$arn = "arn:aws:sns:ap-northeast-1:xxxxxx:yyyyyyy";
$message = 'dummy message';

$client = SnsClient::factory(array(
    'profile' => 'default',
    'region'  => 'ap-northeast-1',
    'debug'   => true,
));

$result = $client->publish(array(
    'TopicArn' => $arn,
    'Message' => $message
));
echo $result.PHP_EOL;

此代码输出

$ php publish.php
=====================
Debug output of model
=====================

Model data
-----------

This data can be retrieved from the model object using the get() method of the model (e.g. $model->get($key)) or accessing the model like an associative array (e.g. $model['key']).

    [MessageId] => a2b0f132-06cb-5514-b043-a289d7e2bb40
    [ResponseMetadata] => Array
        (
            [RequestId] => a848f1de-4a39-584e-8f28-a2659b10561a
        )

请告诉我