WordPress WordPress Plugin Architecture & Configuration

Question 1

What is the minimum required header comment in a WordPress plugin file?

Accepted Answer

Plugin Name:

Answer

Only 'Plugin Name:' is required in the plugin header comment for WordPress to recognize and list a plugin.

Question 2

Which WordPress function is used to register an activation hook for a plugin?

Accepted Answer

register_activation_hook()

Answer

register_activation_hook() runs a specified callback function when the plugin is activated from the WordPress admin.

Question 3

What WordPress function checks whether a plugin is currently active?

Accepted Answer

is_plugin_active()

Answer

is_plugin_active() checks if a specific plugin is active by verifying its presence in the active plugins option.

Question 4

Where should plugin option data typically be stored in WordPress?

Accepted Answer

The wp_options table using the Options API

Answer

WordPress plugins should use the Options API (get_option/update_option) which stores data in the wp_options table.

Question 5

What is a WordPress nonce used for in plugin development?

Accepted Answer

Verifying form submissions and protecting against CSRF attacks

Answer

Nonces are one-time security tokens used to verify that form submissions and URL requests come from legitimate, authenticated sources.

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