Action hooks in Wordpress - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a function to a WordPress action hook.

Wordpress

add_action('init', [1]);

Drag options to blanks, or click blank then click option'

A'my_custom_function'

Bmy_custom_function()

C'my_custom_function()'

Dmy_custom_function

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the function name without quotes

Including parentheses in the function name string

You need to pass the function name as a string to add_action. So, use quotes around the function name.

2fill in blank

medium

Complete the code to define a function that runs on the 'wp_footer' action hook.

Wordpress

function [1]() {
    echo '<p>Footer text</p>';
}
add_action('wp_footer', '[1]');

Drag options to blanks, or click blank then click option'

Adisplay_footer

Bshow_footer

Cfooter_display

Dfooter_text

Attempts:

3 left

💡 Hint

Common Mistakes

Using different function names in definition and add_action

Forgetting to add the function to the action hook

The function name must be the same in both the definition and the add_action call.

3fill in blank

hard

Fix the error in the code to properly add a function to the 'admin_menu' action hook.

Wordpress

add_action('admin_menu', [1]);

function add_custom_menu() {
    add_menu_page('Custom Menu', 'Custom Menu', 'manage_options', 'custom-menu', 'custom_menu_callback');
}

Drag options to blanks, or click blank then click option'

Aadd_custom_menu

Badd_custom_menu()

C'add_custom_menu'

D'add_custom_menu()'

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the function call instead of the function name

Including parentheses inside the string

The function name should be passed as a string without parentheses to add_action.

4fill in blank

hard

Fill both blanks to add a function with priority 15 and 2 accepted arguments to the 'save_post' action hook.

Wordpress

add_action('save_post', [1], [2], 2);

Drag options to blanks, or click blank then click option'

A'save_post_handler'

B10

C15

D'save_handler'

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong priority number

Passing function name without quotes

The function name must be a string, and the priority is set to 15.

5fill in blank

hard

Fill all three blanks to define a function hooked to 'the_content' filter that appends text to post content.

Wordpress

function [1]($content) {
    return $content . [2];
}
add_filter('the_content', [3]);

Drag options to blanks, or click blank then click option'

Aappend_text_to_content

B' - Thank you for reading!'

C'append_text_to_content'

D' - Read more on our site.'

Attempts:

3 left

💡 Hint

Common Mistakes

Mismatching function names

Not using quotes around strings

Passing function call instead of function name

The function name is append_text_to_content, the appended text is a string, and the function name is passed as a string to add_filter.