WordPress Settings API

WordPress Settings API — a practical guide to WordPress Settings API with clear examples you can reuse in real projects.

WordPress Plugin Development Series (20/95). Prefer one article? Read the complete WordPress plugin development tutorial.

Short description

Settings API handles nonces, capabilities, and option saving patterns more safely than raw forms.

Register setting

add_action('admin_init', function () {
    register_setting('acme_settings_group', 'acme_settings', [
        'type' => 'array',
        'sanitize_callback' => 'acme_sanitize_settings',
        'default' => [],
    ]);
});