Template parts in Wordpress - Step-by-Step Execution

Concept Flow - Template parts

Start: Main Template File

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Call get_template_part()

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Locate Template Part File

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Load Template Part Content

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Insert Content into Main Template

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Render Full Page

The main template calls get_template_part(), which loads a smaller template file and inserts its content into the page.

Execution Sample

Wordpress

<?php get_template_part('header'); ?>

This code loads the header.php template part and inserts its content where called.

Execution Table

Step	Action	File Targeted	Result
1	Main template starts rendering	index.php	Page rendering begins
2	Call get_template_part('header')	header.php	Look for header.php file
3	Load header.php content	header.php	Header HTML loaded
4	Insert header content into main template	index.php	Header appears at call location
5	Continue rendering rest of main template	index.php	Page completes rendering

💡 All template parts loaded and inserted, page fully rendered

Variable Tracker

Variable	Start	After Step 2	After Step 3	After Step 4	Final
current_template	index.php	header.php	header.php content loaded	header.php content inserted	full page content

Key Moments - 2 Insights

Why does get_template_part('header') look for header.php?

Because get_template_part() adds '.php' automatically and looks in the theme folder for that file, as shown in step 2 and 3 of the execution table.

What happens if the template part file is missing?

The function will not insert content, so the page will render without that part. This is implied by the file lookup step in the execution table.

Visual Quiz - 3 Questions

Look at the execution table, what file does get_template_part('header') try to load?

A header.html

B index.php

C header.php

D footer.php

💡 Hint

Check Step 2 and 3 in the execution table where the file targeted is header.php

At which step is the header content inserted into the main template?

A Step 2

B Step 4

C Step 3

D Step 5

💡 Hint

Step 4 says 'Insert header content into main template'

If the header.php file is missing, what will happen to the page rendering?

A Page will render without header content

B Page will crash and not render

C Page will load footer instead

D Page will load header.html instead

💡 Hint

Refer to key moment 2 about missing template parts and execution table step 3

Concept Snapshot

Template parts let you split theme files into smaller pieces.
Use get_template_part('name') to load 'name.php'.
This inserts that part's content into the main template.
If the file is missing, no content is added.
It helps keep code organized and reusable.

Full Transcript

In WordPress themes, template parts are smaller template files like header.php or footer.php. The main template calls get_template_part('name') to load and insert these parts. The function looks for 'name.php' in the theme folder, loads its content, and places it where called. This keeps templates organized by splitting code into reusable pieces. If the file is missing, that part is skipped and the page still renders. This visual trace shows each step from calling get_template_part to inserting the content and completing the page render.