Pubnub does not show the output through subscribe written in php
<p>I have tried executing the PubNub publish/subscribe code from the different browsers. First I have executed pubnub_subscribe.php file, then pubnub_publish.php.
pubnub_publish.php code shows the following output. I have already register with PubNub. I can not see the message in publish and subscribe.
Could anyone guide me how to find out the answer. It will be appreciated. </p>

<p>output (in pubnub_publish.php)</p>

<pre><code>Array ( [0] =&gt; 1 [1] =&gt; Sent [2] =&gt; 14647684832679527 )
</code></pre>

<h2>pubnub_publish.php</h2>

<pre><code>&lt;?php
require_once('Pubnub/lib/autoloader.php');
use Pubnub\Pubnub;
$publish_key = "pub-c-34b22d9f...";
$subscribe_key = "sub-c-54cb22de...";
$pubnub = new Pubnub(array("publish_key" =&gt;$publish_key, 
                    "subscribe_key" =&gt;$subscribe_key,
                    "ssl" =&gt; true,
                    "uuid" =&gt;"user1",
                    'verify_peer' =&gt; true)
                    );
$publish_result = $pubnub-&gt;publish('Channel-m2cerlovh','Hello PubNub!');
print_r($publish_result);
?&gt;
</code></pre>

<h2>pubnub_subscribe.php</h2>

<pre><code>&lt;?php
require_once('Pubnub/lib/autoloader.php');
use Pubnub\Pubnub;

$publish_key = "pub-c-34b22d9f...";
$subscribe_key = "sub-c-54cb22de...";
$pubnub = new Pubnub(array("publish_key" =&gt;$publish_key, 
                    "subscribe_key" =&gt;$subscribe_key,
                    "ssl" =&gt; true,
                    "uuid" =&gt;"user1",
                    'verify_peer' =&gt; true)
                    );

$pubnub-&gt;setSubscribeTimeout(10); 

$pubnub-&gt;subscribe('Channel-n9zu05kxi', function ($envelope) {
       print_r($envelope['message']);
});
?&gt;
</code></pre>