Convert plain text URLs into links in Drupal

Source code viewer
$str = 'Turn this text URL into html link: http://browse-tutorials.com';
module_load_include('module', 'filter', 'filter');
$filter = new stdClass();
$filter->settings = array(
  'filter_url_length' => 80,
);
print _filter_url($str, $filter);
Programming Language: PHP