Output Buffering php producing nothing - why isn't this working?

Question

In a Joomla template file (index.php) I am trying to get 2 parameters which are set in the admin panel (then wrapped in some css formatting) to create some basic css for google fonts and then save them to a separate css file. Maybe my thoughts on this are all wrong, but here is what I am TRYING to do but needless to say it is producing nothing...

    <?php
      ob_start();
     ?>

        <?php echo $this->params->get('googleFont1types');?> {
        font-family: '<?php echo str_replace('+', ' ', $this->params->get('googleFont1'));?>', sans-serif;
        }
        <?php echo $this->params->get('googleFont2types');?> {
            font-family: '<?php echo str_replace('+', ' ', $this->params->get('googleFont2'));?>', serif;
        }"

     <?php
     $googlefontcss = ob_get_contents();
     ob_end_clean();
    file_put_contents('googlefonts.css', $googlefontcss);
     ?>

Or do you know of a better way of doing this? I can easily write the styles inline as css like the following (tested and working) - but I dont want inline css ideally. I'd really like to just take this chunk of css and write it to a text file.

  <?php
// Use of Google Font
if ($this->params->get('googleFont'))
{
?>
  <link href='http://fonts.googleapis.com/css?family=<?php echo $this->params->get('googleFont1');?>|<?php echo $this->params->get('googleFont2');?>' rel='stylesheet' type='text/css' />
  <style type="text/css">
    <?php echo $this->params->get('googleFont1types');?> {
      font-family: '<?php echo str_replace('+', ' ', $this->params->get('googleFont1'));?>', sans-serif;
    }
    <?php echo $this->params->get('googleFont2types');?> {
        font-family: '<?php echo str_replace('+', ' ', $this->params->get('googleFont2'));?>', serif;
    }
  </style>   

<?php
}
?>

Answer 1

It was a permissions problem - it is fixed now. Thanks for your input Tim