How to change the title of a Drupal View via code

gistfile1.php

<?php
function customModule_views_pre_render(&$view) {
  if ($view->name == 'view_name' && $view->current_display == 'display_id') {
    // Here you can do any php you want to get the title you need for your view.
    $view->build_info['title'] = "My custom title!";
  }
}