Creating and editing posts in Wordpress - Practice Exercises

Challenge - 5 Problems

❓ component_behavior

intermediate

What happens when you save a post with the status 'draft' in WordPress?

In WordPress, when you create a new post and save it with the status set to 'draft', what is the expected behavior?

A The post is immediately visible on the website homepage.

B The post is deleted automatically after saving.

C The post is published but marked as private.

D The post is saved but not visible to the public until published.

💡 Hint

Think about what 'draft' means in everyday writing before sharing.

Saving a post as a draft means it is stored but not shown publicly. You can edit it later and publish when ready.

📝 Syntax

intermediate

Which WordPress function correctly creates a new post programmatically?

Choose the correct PHP function call to create a new post in WordPress with the title 'Hello World' and content 'Welcome to my blog'.

A create_post(title='Hello World', content='Welcome to my blog');

B insert_post('Hello World', 'Welcome to my blog');

C wp_insert_post(['post_title' => 'Hello World', 'post_content' => 'Welcome to my blog', 'post_status' => 'publish']);

D add_post(['title' => 'Hello World', 'content' => 'Welcome to my blog']);

💡 Hint

Look for the official WordPress function that inserts posts.

The function wp_insert_post is the correct WordPress function to create posts programmatically. Other options are not valid WordPress functions.

🔧 Debug

advanced

Does this code successfully update the post content?

Given this PHP code snippet to update a post's content (assuming post ID 42 exists), what happens?

$post_id = 42;
$post_data = ['ID' => $post_id, 'post_content' => 'New content here'];
wp_insert_post($post_data);

Wordpress

$post_id = 42;
$post_data = ['ID' => $post_id, 'post_content' => 'New content here'];
wp_insert_post($post_data);

A The code works correctly and updates the post content.

B The function wp_insert_post cannot update posts, only create new ones.

C The 'ID' key must be lowercase 'id' to update a post.

D The post status is missing, so WordPress ignores the update.

💡 Hint

Recall that wp_insert_post can update existing posts if the 'ID' is provided and the post exists.

The code works correctly. When the 'ID' key is included in the array passed to wp_insert_post, and the post exists, it updates the specified fields like post_content while preserving other data such as post_status.

❓ state_output

advanced

What does wp_update_post return with an invalid post ID?

Consider this code snippet:

$result = wp_update_post(['ID' => 999999, 'post_content' => 'Updated content']);

Assuming post ID 999999 does not exist, what is the value of $result?

Wordpress

$result = wp_update_post(['ID' => 999999, 'post_content' => 'Updated content']);

A A PHP warning error is thrown.

B 0 (zero), indicating failure to update.

C null, because the function returns nothing.

D The post ID 999999, indicating success.

💡 Hint

Check the WordPress documentation for wp_update_post return values on failure.

wp_update_post returns 0 if the post ID does not exist or update fails. It returns the post ID on success.

🧠 Conceptual

expert

Which WordPress hook is best to modify post content before saving it?

You want to automatically add a disclaimer text to every post before it is saved in the database. Which WordPress hook should you use?

A wp_insert_post_data

B the_content

C save_post

D init

💡 Hint

Think about which hook lets you change post data just before saving.

The wp_insert_post_data filter allows you to modify post data before it is saved to the database. save_post runs after saving, the_content filters content on display, and init runs too early.