T5 Embed Post Shortcode

t5-embed-post-shortcode.php

<?php # -*- coding: utf-8 -*-
/**
 * Plugin Name: T5 Embed Post Shortcode
 * Description: Embed any page, post or custom post type with shortcode: <code>[embed_post id=1 title="hello" type="post"]</code>.
 * Plugin URI:  http://toscho.de/?p=2056
 * Version:     2012.08.17
 * Author:      Thomas Scholz
 * Author URI:  http://toscho.de
 * License:     MIT
 * License URI: http://www.opensource.org/licenses/mit-license.php
 *
 * T5 Embed Page Shortcode, Copyright (C) 2012 Thomas Scholz
 */

add_shortcode( 'embed_post', 't5_embed_post' );

/**
 * Get a post per shortcode.
 *
 * @param  array $atts There are three possible attributes:
 *         id: A post ID. Wins always, works always.
 *         title: A page title. Show the latest if there is more than one post
 *              with the same title.
 *         type: A post type. Only to be used in combination with one of the
 *              first two attributes. Might help to find the best match.
 *              Defaults to 'page'.
 * @return string|void
 */
function t5_embed_post( $atts )
{
	$defaults = array (
		'id'    => FALSE,
		'title' => FALSE,
		'type'  => 'page'
	);
	extract( shortcode_atts( $defaults, $atts ) );

	// Not enough input data.
	if ( ! $id and ! $title )
	{
		return;
	}

	$post = FALSE;

	if ( $id )
	{
		$post = get_post( $id );
	}
	elseif ( $title )
	{
		$post = get_page_by_title( $title, OBJECT, $type );
	}

	if ( $post )
	{
		return apply_filters( 'the_content', $post->post_content );
	}
}