Page Comparison

Rather than using Views PHP to insert logic in a views field, a highly advised alternative is to write a custom field handler.  The following code provides the skeleton for a basic Views field handler. 

example.module

/**
 * Implements hook_views_api
 */
function example_views_api() {
  return array(
    'api' => 3,
    'path' => drupal_get_path('module', 'example'),
  );
}

...