Get Child Pages List In Wordpress

10th May 2010 - 2 minutes read time

Note: This post is over a year old and so the information contained here might be out of date. If you do spot something please leave a comment and we will endeavour to correct.

It is possible to print out a list of pages in Wordpress, but these functions are designed to print from the root pages to a certain level. I often need to print out a list of pages that are children of the current page being looked at so I created the following function.

/**
 * Get a list of child pages.
 *
 * @param integer $id         The ID of the parent page.
 *
 * @return string The list of child pages.
 */
function getChildPagesList($id)
{
    // Get the child pages of the current page.
    $args = array(
                    'child_of' => $id,
                    'echo'     => 0,
                 );
    $pages = get_pages($args);
 
    // Build the page list
    $class = '';
 
    $option = '<ul>';
 
    foreach ($pages as $pagg) {
        if (is_page($pagg->ID)) {
            $class = ' class="on"';
        }
        $option .= '<li' . $class . '>';
        $option .= '<a href="' . get_page_link($pagg->ID) . '" title="' . $pagg->post_title . '">' . $pagg->post_title . '</a>';
        $option .= '</li>';
        $class = '';
    }
 
    $option .= '</ul>';
 
    // Return list
    return $option;
}

This function works by calling the get_pages() function in order to retrieve the pages that are children to this page. The echo argument is also used and given a 0 to make the function return the array of pages rather than just print them out. To use this function create some pages that have children and pick a page (in this instance page ID 29) you want to print out like this.

print getChildPagesList(29);

To print out the pages connected to the current post use the following:

echo getChildPagesList($post->ID);

PHP

Comments

Permalink

Couldn't you use wp_list_pages with the 'child_of' parameter included?

So the equivalent examples would be:

wp_list_pages('child_of=29');

wp_list_pages('child_of='.$post->ID);

and you can also choose whether or not to print out the returned pages with the argument 'echo=1' or 'echo=0'.

Permalink

You are quite right, wp_list_pages() would do the job just as well. I'm sure there was a very good reason that I created this function, although I'm not sure what it was now. :)

Permalink

You can use this plugin http://wordpress.org/extend/plugins/rv-submenus/ to get submenus of main menu!

Add new comment

Related Content

Installing SimpleSAMLphp Using Composer

Security Assertion Markup Language (SAML) is a standard that passes authentication credentials between hosts and essentially allows for a single sign on solution to be created. The standard uses XML files that get passed between the authentication system (known as the identity provider or IdP) and the service users want to sign into (known as the service provider or SP).

Create Checksums Using The Luhn Algorithm In PHP

The Luhn algorithm was created by Hans Peter Luhn and is a way of creating a simple checksum for a number. This algorithm, also known as the mod 10 algorithm, is used in a wide variety of applications but is commonly associated with credit card numbers.

If you look at the numbers on the front of your credit card the last digit on the right is the checksum. An algorithm is done on the other numbers and if the checksum is the same then the number is considered valid.

Swapping Between Different Composer Versions

I had an issue I was trying to debug today and needed a way to swap between different versions of composer. Composer is one of the few things that I install globally so it was locked at a particular version on the machine I was using. There has been some significant changes between version 1 and version 2 and it isn't quite safe to use a composer 2 package on a platform that has composer 1 installed. As some projects I'm working on haven't been upgraded yet I needed a way to swap between versions whilst this work was being done.

Creating A Game With PHP Part 4: Side Scrolling Shooter

As another step up from the game of snake I created in my last post I decided to try my hand at creating a side scrolling shooter. Just like my other posts, this is an ASCII based game played on the command line.

A side scrolling shooter, if you didn't already know, moves a scene from right to left across the screen with enemies moving with the scene towards the player's ship, which is on the left hand side of the scene. The player can fire bullets towards the enemies so remove them from the scene.

Seeding Random Numbers in PHP

Computers are not that great at creating random numbers as the methods they use are deterministic. That is, they start from a number (called a seed) and apply maths to that number to generate pseudorandom numbers. Most random numbers generated by computers programs use a seed provided by the system, which is generally the current time. If you can guess the initial value then you can start to work out what the random sequence of numbers generated is. Most random numbers, are therefore not suitable for encryption.

PHP: Find An Array Sequence In An Array

I was looking for a function that searched an array for another array, and after not finding one I decided to write it. What I was looking for was a function that took a smaller array and searched for that exact sequence of items in a larger array. As it happens, PHP does have a number of array search functions, but they didn't produce the correct result.