Reading and writing settings in Wordpress - Cheat Sheet & Quick Revision

Recall & Review

beginner

What function is used to read a setting value in WordPress?

The get_option() function is used to read a setting value stored in the WordPress database.

beginner

How do you save or update a setting in WordPress?

Use the update_option() function to save or update a setting value in the WordPress database.

beginner

What happens if you use get_option() for a setting that does not exist?

It returns false or a default value if you provide one as the second argument.

intermediate

Why should you sanitize data before saving settings in WordPress?

Sanitizing data helps protect your site from security risks by cleaning input before saving it to the database.

intermediate

Which WordPress hook is commonly used to register settings for a plugin or theme?

The admin_init hook is commonly used to register settings using register_setting().

Which function reads a saved setting in WordPress?

A update_setting()

B set_option()

C save_setting()

D get_option()

The get_option() function reads a saved setting value.

What does update_option() do?

A Saves or updates a setting

B Reads a setting

C Registers a setting

D Deletes a setting

update_option() saves a new setting or updates an existing one.

If a setting does not exist, what does get_option() return by default?

A false

B An empty string

C null

D Throws an error

get_option() returns false if the setting is not found.

Which hook is used to register settings in WordPress?

A wp_head

B init

C admin_init

D save_post

The admin_init hook is used to register settings.

Why sanitize data before saving settings?

A To improve performance

B To protect against security risks

C To make data prettier

D To speed up loading

Sanitizing data protects your site from security risks.

Explain how to read and write settings in WordPress and why sanitization is important.

Think about how WordPress stores settings and how to keep data safe.

Describe the role of the admin_init hook in managing WordPress settings.

Consider when and where settings are registered in the WordPress admin.