First, we need to get all the views stored by using the following command

$views = views_get_all_views();

Next, we need to iterate and search for a view that contains PHP Array display (display_plugin == 'php_array')

$php_view_list[] = array();
foreach ($views as $view) {  // foreach view
  foreach ($view->display as $display) { // foreach display in a view
    if ($display->display_plugin == 'php_array') {      
      $php_view_list[] = array(
      'view_name' => $view->name,
      'display_id' => $display->id,
      );
    }
  }
}

$php_view_list will be an array that contains the view_name/display_id pair with PHP Array display.