WordPress: Rename Posts in admin menu.

functions.php

/**
 * Rename Posts in admin menu
 *
 */
new dhf_rename_posts('News');

class dhf_rename_posts
{
	private $name;

	public function __construct($name)
	{
		$this->name = $name;

		add_action('admin_menu', array($this, 'change_post_menu_label'));
		add_action('init', array($this, 'change_post_object_label'));
	}

	public function change_post_menu_label()
	{
		global $menu, $submenu;

		$menu[5][0] = $this->name;
		$submenu['edit.php'][5][0] = $this->name;
		$submenu['edit.php'][10][0] = 'Add ' . $this->name;
	}

	public function change_post_object_label()
	{
		global $wp_post_types;

		$labels = $wp_post_types['post']->labels;
		$labels->name = $this->name;
		$labels->singular_name = $this->name;
		$labels->add_new = 'Add ' . $this->name;
		$labels->add_new_item = 'Add ' . $this->name;
		$labels->edit_item = 'Edit ' . $this->name;
		$labels->new_item = $this->name;
		$labels->view_item = 'View ' . $this->name;
		$labels->search_items = 'Search ' . $this->name;
		$labels->not_found = 'No ' . $this->name . ' found';
		$labels->not_found_in_trash = 'No ' . $this->name . ' found in Trash';
	}
}