basic php not working

I’m new to Airpress and Airtable but it looks promising. I have successfully set up a connection and using Virtual Fields in the body copy of a post using shortcodes.

[apr field=”Adult”]
[apr field=”Cost Kids”]

However, I use the PHP Code Widget to build sidebars and was having trouble writing php code that works with Airpress. Airpress has a basic script on the site which I have modified with my column names. The only thing that displays is a colon. What else do I need to do to make the php work?:

Basic script that is on Airpress Plugin Page:

<?php
$e = $post->AirpressCollection[0];
echo $e[“Name”].”: “.$e[“Start Date”].”<br>”;
?>

With modification:

<?php
$e = $post->AirpressCollection[0];
echo $e[“Adult”].”: “.$e[“Cost Kids”].”<br>”;
?>