Permalink structure in Wordpress - Mini Project: Build & Apply

Customizing Permalink Structure in WordPress

📖 Scenario: You are building a blog website using WordPress. You want to make your post URLs easy to read and remember by customizing the permalink structure.

🎯 Goal: Learn how to set up a custom permalink structure in WordPress to improve URL readability and SEO.

📋 What You'll Learn

Create a variable to hold the default permalink structure string

Add a variable to hold the new custom permalink structure string

Use the WordPress function update_option to set the new permalink structure

Flush rewrite rules using flush_rewrite_rules to apply changes

💡 Why This Matters

🌍 Real World

Customizing permalinks helps make website URLs user-friendly and better for search engines.

💼 Career

WordPress developers often need to configure permalinks for client websites to improve usability and SEO.

1

Set the default permalink structure

Create a variable called default_permalink and set it to the string '/archives/%post_id%' which represents the default permalink structure.

Wordpress

// Create a variable called $default_permalink and set it to '/archives/%post_id%'
// Your code here

Hint

The default permalink structure uses the post ID inside the URL after '/archives/'.

2

Define a new custom permalink structure

Create a variable called custom_permalink and set it to the string '/%category%/%postname%/' which will show category and post name in URLs.

Wordpress

$default_permalink = '/archives/%post_id%';
// Create a variable called $custom_permalink and set it to '/%category%/%postname%/'
// Your code here

Hint

The new permalink structure includes the category and post name for better readability.

3

Update WordPress permalink option

Use the WordPress function update_option with the first argument 'permalink_structure' and the second argument custom_permalink to update the permalink setting.

Wordpress

$default_permalink = '/archives/%post_id%';
$custom_permalink = '/%category%/%postname%/'; 
// Use update_option to set 'permalink_structure' to $custom_permalink
// Your code here

Hint

This function changes the permalink structure setting in WordPress.

4

Flush rewrite rules to apply changes

Call the WordPress function flush_rewrite_rules with no arguments to refresh the permalink rules and apply the new structure.

Wordpress

$default_permalink = '/archives/%post_id%';
$custom_permalink = '/%category%/%postname%/'; 
update_option('permalink_structure', $custom_permalink);
// Call flush_rewrite_rules() to apply the new permalink structure
// Your code here

Hint

This function refreshes WordPress's URL rules so the new permalink structure works immediately.

Practice

1. What does the %postname% tag represent in a WordPress permalink structure?

easy

A. The date the post was published

B. The slug of the post or page

C. The category of the post

D. The author of the post

Solution

1. Step 1: Understand the purpose of %postname%

   The %postname% tag is used to insert the post slug, which is a URL-friendly version of the post title.

2. Step 2: Compare with other tags

   Other tags like %year% or %category% represent date or category, not the post slug.

3. Final Answer:

   The slug of the post or page -> Option B

4. Quick Check:

   %postname% = post slug [OK]

Hint: Remember postname means the post's URL-friendly title [OK]

Common Mistakes:

• Confusing %postname% with %category%
• Thinking %postname% shows the date
• Assuming %postname% is the author name

2. Which of the following is a valid custom permalink structure in WordPress?

easy

A. /%day%/%month%/%slug%/

B. /post/%author%/%date%/

C. /%year%/%monthnum%/%postname%/

D. /%category%/%postid%/%title%/

Solution

1. Step 1: Check valid WordPress tags

   WordPress supports tags like %year%, %monthnum%, and %postname%. /%year%/%monthnum%/%postname%/ uses only valid tags.

2. Step 2: Identify invalid tags in other options

   Options A, B, and C use invalid tags like %date%, %title%, or %slug% which are not recognized by WordPress.

3. Final Answer:

   /%year%/%monthnum%/%postname%/ -> Option C

4. Quick Check:

   Valid tags only = /%year%/%monthnum%/%postname%/ [OK]

Hint: Use only official WordPress tags in permalinks [OK]

Common Mistakes:

• Using tags like %title% or %slug% which don't exist
• Mixing date formats incorrectly
• Forgetting trailing slash in structure

3. Given the permalink structure /%category%/%postname%/, what would be the URL for a post titled "Summer Tips" in the "Travel" category?

medium

A. /travel/summer-tips/

B. /summer-tips/travel/

C. /category/travel/summer-tips/

D. /travel/category/summer-tips/

Solution

1. Step 1: Understand the structure tags

   The structure /%category%/%postname%/ means the URL starts with the category slug, then the post slug.

2. Step 2: Apply to given post and category

   Category "Travel" becomes "travel" and post "Summer Tips" becomes "summer-tips". So URL is /travel/summer-tips/.

3. Final Answer:

   /travel/summer-tips/ -> Option A

4. Quick Check:

   Category + postname = /travel/summer-tips/ [OK]

Hint: Category comes first, then postname in this structure [OK]

Common Mistakes:

• Swapping category and postname order
• Adding extra words like 'category' in URL
• Using capital letters in URL slugs

4. A WordPress site uses the permalink structure /%year%/%postname%/. After changing it to /%postname%/, some old links show 404 errors. What is the likely cause?

medium

A. The .htaccess file was not updated to reflect the new structure

B. The post slugs were deleted accidentally

C. The site URL was changed in settings

D. The category base was not set correctly

Solution

1. Step 1: Understand permalink changes effect

   Changing permalink structure requires updating rewrite rules in the .htaccess file for URLs to work correctly.

2. Step 2: Identify cause of 404 errors

   If .htaccess is not updated, old URLs won't redirect properly, causing 404 errors.

3. Final Answer:

   The .htaccess file was not updated to reflect the new structure -> Option A

4. Quick Check:

   Rewrite rules update needed = The .htaccess file was not updated to reflect the new structure [OK]

Hint: Always update .htaccess after changing permalinks [OK]

Common Mistakes:

• Assuming post slugs were deleted
• Ignoring .htaccess rewrite rules
• Confusing category base with permalink structure

5. You want your WordPress URLs to show the year, category, and post name, but avoid duplicate URLs for posts in multiple categories. Which permalink structure helps prevent duplicates?

hard

A. /%year%/%category%/%postname%/

B. /%category%/%postname%/

C. /%postname%/

D. /%year%/%postname%/

Solution

1. Step 1: Understand duplicate URL issue

   Using %category% can cause multiple URLs if a post belongs to multiple categories.

2. Step 2: Choose structure avoiding category

   Removing %category% from the URL avoids duplicates. Including %year% and %postname% keeps URLs informative.

3. Final Answer:

   /%year%/%postname%/ -> Option D

4. Quick Check:

   Exclude category to prevent duplicates = /%year%/%postname%/ [OK]

Hint: Avoid %category% in URLs to stop duplicates [OK]

Common Mistakes:

• Including %category% causing multiple URLs
• Using only %postname% losing date info
• Ignoring SEO impact of URL clarity