Minimal push gateway for RocketChat in PHP

gistfile1.txt

<?php
// logging the requests for DEBUG
/*
    ob_start();
    echo $_SERVER['REQUEST_URI'];
    $post_data = file_get_contents("php://input");
    print_r($post_data);
    $data = json_decode($post_data);
    var_dump($data);
    echo "\n";
    echo "token: " . $data->token . '\n';
    echo "text: " . $data->options->text . '\n';
    file_put_contents(time() . ".log", ob_get_contents());
    ob_end_flush();
*/

    $data = json_decode(file_get_contents("php://input"));
      $msg = array(
        'body' 	=> $data->options->text,
        'title'	=> 'ENVIENTA Chat',
	'type'	=> 'chat'
      );
      $fields = array(
        'to'	=> $data->token,
        'data'	=> $msg
      );
      $headers = array(
        'Authorization: key=YOUR FCM PUSH API KEY',
        'Content-Type: application/json'
      );

      $ch = curl_init();
      curl_setopt( $ch,CURLOPT_URL, 'https://fcm.googleapis.com/fcm/send' );
      curl_setopt( $ch,CURLOPT_POST, true );
      curl_setopt( $ch,CURLOPT_HTTPHEADER, $headers );
      curl_setopt( $ch,CURLOPT_RETURNTRANSFER, true );
      curl_setopt( $ch,CURLOPT_SSL_VERIFYPEER, false );
      curl_setopt( $ch,CURLOPT_POSTFIELDS, json_encode( $fields ) );
      $result = curl_exec($ch );
      curl_close( $ch );
?>

RocketChat sends requests to /push/gcm/send, so a .htaccess file is needed with content something like this:

RewriteEngine on

RewriteCond %{REQUEST_FILENAME} !index.php
RewriteRule (.*)$ /index.php/$1 [L,QSA]

DirectoryIndex index.php