Saiweb

Ramblings of a Sys admin

02 04 2009

WordPress getting the current Page or Post ID

Posted by: Buzz in php

An example of getting the current page / post ID, identifying whether the current item is a page or a post, and then appending the results to the content.

All from within a plugin.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

<?PHP
/*
Plugin Name: Get Page / Post ID using a plugin by D.Busby Saiweb.co.uk
Plugin URI: http://saiweb.co.uk
Description: Identifies the current page/post and appends text to the content
Version: 0.1
Author: David Busby
Author URI: http://saiweb.co.uk
*/

//WP hooks start
add_filter('the_content', 'post_page');
//WP hooks end

function post_page($content){
global $post; //wordpress post global object
if($post->post_type == 'page'){
$content .= '<br /> This item is a page and the ID is: '.$post->ID;
} elseif($post->post_type == 'post') {
$content .= '<br /> This item is a post and the ID is: '.$post->ID;
}
return $content;
}
?>

Install the above as a plugin i.e. in wp-content/plugins/test/test.php

Head over to your admin menu and enable the plugin, now each page and post will identify itself as a page or post, and provide it’s ID.

There is a lot available in the $post object for a list add

1
2
3
4

ob_start();
var_dump($post);
$content .= ob_get_contents();
ob_end_clean();

Tags: get, id, page, wordpress

This entry was posted on Thursday, April 2nd, 2009 at 2:50 pm and is filed under php. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “WordPress getting the current Page or Post ID”

sean says: April 2nd, 2009 at 9:43 pm
or
```
$content .= print_r($post, true);
```
get_the_ID() is handy for templates aswell in conjunction with the get_page and get_post functions.

Sean
Aaron Newton says: March 14th, 2010 at 5:21 am

Sean is correct, however I have a slight adjustment.

The $page isn’t an array, it is an object. In this sense, using print_r (print array) probably isn’t the best option. Consider using var_dump as an alternative OR you can actually access the object properties directly like this:

$post->ID

This also allows you to set this as a variable for use outside the loop, e.g.

$curr_post_id = $post->ID

I am using this to imporve the WordPress pagination function on a site.