Middle man webhook to send customer thermometer responses to a channel in MSTeams

cb-to-teams.php

<?php
/*
Use of this script assumes that you know how to create a webhook url in teams. Google is your friend.

STEPS IN THIS FILE:
-Create a random password with no special charcters, put it in the quotes after $postSecret=
-Create your teams webhook, put it in quotes after $teams_webhook_url = (look within the PostToTeams function)
-Upload it to a webhost with PHP 7 or better, and use HTTPS like a friggin grownup

STEPS IS CUSTOMER THERMOMETER:
-Login and go to https://app.customerthermometer.com/?template=webhooks
-Create a new webhook with these settings: https://i.imgur.com/jjAYciR.png
-Link your thermometers: https://i.imgur.com/Du2cSyJ.png
-THAT'S IT
*/
$postSecret = "create a unique secret right here";
$rt=time();
function CreateTeamsCard($input)
{
    $thermometer_name = $input->thermometer_name;
    $response = $input->response;
    $first_name = $input->first_name;
    $last_name = $input->last_name;
    $company = $input->company;
    $custom_one = $input->custom_1;

    //prevents $schema in the teams card from generating an issue.
    $schema = "\$schema";

    $teams_card = <<< TEAMSCARD
    {
        "@context": "https://schema.org/extensions",
        "@type": "MessageCard",
        "themeColor": "e77817",
        "title": "Customer Thermometer Response on {$thermometer_name}",
        "text": "{$first_name} {$last_name} ({$company}) left a **{$response}** response!",
        "potentialAction": [
          {
            "@type": "OpenUri",
            "name": "View Ticket",
            "targets": [
              { "os": "default", "uri": "https://bms.kaseya.com/MSP/TicketEdit.aspx?ID={$custom_one}" }
            ]
          }
        ]
      }
TEAMSCARD;
return $teams_card;
}

function PostToTeams($card) {
    $teams_webhook_url = "enter your teams webhook URL here";
    $ch = curl_init($teams_webhook_url);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $card);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
        'Content-Type: application/json',
        'Content-Length: ' . strlen($card)
    ));
    $result = curl_exec($ch);
    curl_close($ch);
    return $response;

}

if($_SERVER['REQUEST_METHOD'] === 'POST') {
    if($_GET['secret'] == $postSecret) {
        
        $customer_thermometer_post_body = file_get_contents('php://input');
        $customer_thermometer_decoded = json_decode($customer_thermometer_post_body);

        $teams_card = CreateTeamsCard($customer_thermometer_decoded);
        $api_result = PostToTeams($teams_card);
        //exit($api_result);
        header("Content-Type: application/json");
        exit($teams_card);


    } else {
        error_log("CT TO TEAMS ACCESS DENIED $rt");
        die("Access Denied");
    }
} else {
    error_log("CT TO TEAMS NON POST REQUEST $rt");
    die("Invalid Request");
}