php

When generating archive pages, it’s sometimes necessary to return all of the Posts (for a given Post Type), sorted by the Category for visitors to sort through easily.

Sourced here, this snippet can be inserted within single.php and used to isolate the previous and next navigation links when working with Custom Post Types that have multiple Taxonomies and Terms to allow for more streamlined navigation:

Use if statement found here that allows you to sort by the parent category, to show only relevant child categories on various landing pages:

If you’d like to continue using the_post_thumbnail in your theme, but do not want to use a fixed default, use this snippet to inherit images from parent pages.

Handy when listing date / event oriented posts on a feed. Sourced here.

Generate a list of WordPress posts, grouped by month, for the specified author.

This comes in handy when working with multiple authors, and needing to generate a list of archives for their content.

Stumbled across this bit of code here. Used to show the main navigation in a sidebar for all child and grandchild pages.

Alternative: echo wpautop(get_field(‘featured_summary’));

Add the following code to your functions.php in order to redirect your home.php template to the most recent single post

Adding increasing increments to loops can help with styling elements, and revealing additional content. Here are few examples to implement counters with php.

An alternative to wp_list_categories() – using get_categories() with a loop can prove to be quite useful in terms of customizing category displays.

Sometimes transitional content is used in one area of a website, like to display hours in a Header or Sidebar. Instead of having the client (or yourself!) update this content every day, get your code to update it for you when the weekdays change.

Use this to grab the Featured Image from the post parent if the child page is not using a Feature Image.

I have dug all over the internet for a query like this one!

This will generate the get_archives_link needed to link to your Custom Post Type year/month url.

Drop the below if statement within a loop and add a count for each colour change that you need with the template.

This is a great example to reference if you’re building a scrolling website, and loading all pages in a single progression with alternating templates applied.

Retrieve the ID of the first item in a loop:

$category = get_the_category(); 
echo $category[0]->cat_name;

For use with older browser version testing.

Create a menu that drills down to subpages as they exist.

Create two functions within functions.php. One will control the “if(has)” parameter that will be called within the page template, and one will contain the data that we want to display:

Follow these instructions to exclude custom post type category.

$top_page_url = get_permalink( end( get_ancestors( get_the_ID(), 'page' ) ) );

Use the above text in place of the_permalink(); in order to retrieve the link information for the topmost page ancestor.

echo apply_filters('the_content', get_post_field('post_content', $post_id));

Sourced here.

Update – July 28, 2015

This method can also be used to retrieve data from custom fields when working with plugins like Advanced Custom Fields:

echo apply_filters('widget_content', get_post_field('widget_content', $post->ID));

<ul>
  <?php $n = 0; foreach($page->children() as $child): $n++; ?>
  <li class="<?php echo ($n%2) ? 'odd' : 'even' ?>">
    ...
  </li>
  <?php endforeach ?>
</ul>

You can change “odd” and “even” to whatever names you need.  Sourced here.

Using large sliding banners with linked content can be both a blessing and a curse.  This adds a beautiful level of style and information to the site, but also takes up a lot of space, and provides a lot of repetitive information that can be difficult for new visitors to navigate.

Using the_date(); this is very easy to achieve, all you need is  © to get yourself setup. To take it a step further, you can include a date span, so your clients are aware of just how long you’ve been burning the midnight oil.

<p>&copy; 2013 <?php date('Y') == "2012" ? $year = "" : $year = "- ".date('Y'); echo $year; ?></p>

Sourced here.

Menus can be tricky. Rather than being locked into the just using menu sort order, or alphabetical order, combine the two using wp_list_pages(); You can style the drop downs to respond on hover using CSS.

I’ve run into problems several times where exclude and include do not work, or work selectively, and as a result, either all of the posts are included, or none of them are. I’ve found an answer that works both inside and outside of the loop.