Write MODX FormIt submission to JSON

FormItToJSON.php

<?php

// config settings
$server = $hook->formit->config['server'];
$server = (!empty($server)) ? $server : 'https://www.modx.com';
$formname = $hook->formit->config['formname'];
$formname = (!empty($formname)) ? $formname : '';
$resultTpl = $hook->formit->config['resultTpl'];
$toPlaceholder = $hook->formit->config['toPlaceholder'];

// EXTRA settings
$today = date("m/d/Y");
$ip = $_SERVER['REMOTE_ADDR'];


$settings = array(
    "ActionDate" => $today,
    "IPAddress" => $ip
);
$formvalues = $hook->getValues();

$data_string = array_merge($settings, $formvalues);
$json = json_encode($data_string);

$url = $server . $formname;

$headers = array(
    'content-type:application/json',
    'charset:utf-8',
    'accept:application/json'
);

  $ch = curl_init();
  curl_setopt( $ch, CURLOPT_URL, $url );
  curl_setopt( $ch, CURLOPT_POST, true );
  curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers);
  curl_setopt( $ch, CURLINFO_HEADER_OUT, true);
  curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
  curl_setopt( $ch, CURLOPT_POSTFIELDS, "$json" );
  $result = curl_exec($ch);
  $header = curl_getinfo($ch, CURLINFO_HEADER_OUT);
  curl_close($ch);

$modx->log(modX::LOG_LEVEL_ERROR, '[JSON] ' . $json);

if (!empty($toPlaceholder)) {
    $modx->setPlaceholder($toPlaceholder, $output);
    return '';
}

return true;