A very rough PHP script for posting form data via slack

demorequest.php

<?php
$slack_domain = '';
$slack_token = '';

if ( isset($_POST['email']) && isset($_POST['name'])  && filter_var($_POST['email'], FILTER_VALIDATE_EMAIL) ) {

  $message = "Someone wants a demo!\n\n" .
           "Name: " . $_POST['name'] . "\n" .
           "Company: " . $_POST['company'] . "\n" .
           "Email: " . $_POST['email'] . "\n" .
           "Phone Number: " . $_POST['phone-number'] . "\n";

  // Array of data posted Slack
  $fields = array(
      'username' => "demo_request",
      'icon_emoji' => ":heart_eyes:",
      'text' => $message
  );

  // 'payload' parameter is required by Slack
  // $fields array must be json encoded
  $payload = "payload=" . json_encode($fields);

  // URL we need to post data to (Given to you by Slack when creating an Incoming Webhook integration)
  $url = "https://$slack_domain.slack.com/services/hooks/incoming-webhook?token=$slack_token";

  // Start CURL connection
  $ch = curl_init();

  // Set the:
  // - URL
  // - Number of POST variables
  // - Data
  curl_setopt($ch,CURLOPT_URL, $url);
  curl_setopt($ch,CURLOPT_POST, count($fields));
  curl_setopt($ch,CURLOPT_POSTFIELDS, $payload);

  // Execute post to Slack integration
  $result = curl_exec($ch);

  // Close CURL connection
  curl_close($ch);
}
?>