php - Wordpress settings page options not updating backend -

i'm developing wordpress plugin, , have been basing admin page development off of codex's custom settings page example. have been unable update setting in wp_options db, , can't seem find explanation i've done wrong. when click 'save settings', page refreshes , bar pops @ top saying settings saved properly, nothing shows in wp_options, , text input box isn't populated updated value.

here's have:

admin init section:

function secg_settings_init() {     register_setting( 'secg', 'secg_options' );     add_settings_section(         'secg_section_developers',         __( 'api keys.', 'secg' ),         'secg_section_developers_cb',         'secg'     );     add_settings_field(         'secg_field_test_secret_key',          __( 'test-secret-key', 'secg' ),         'secg_field_test_secret_key_cb',         'secg',         'secg_section_developers',         [             'label_for' => 'secg_field_test_secret_key',             'id' => 'test-secret-key'         ]     ); } add_action( 'admin_init', 'secg_settings_init' ); 

section , field callbacks:

function secg_section_developers_cb( $args ) {     ?>     <p id="<?php echo esc_attr( $args['id'] ); ?>"><?php esc_html_e( 'section developers cb.', 'secg' ); ?></p>     <?php }  function secg_field_test_secret_key_cb( $args ) {     $options = secg_option();     ?>     <input type="text"             name="secg_options[<?php echo esc_attr( $args['label_for'] ); ?>]"             id="<?php echo esc_attr( $args['label_for'] ); ?>"             value="<?php $options[ $args['label_for'] ] ?>" />     <?php } 

add page:

function secg_options_page() {     add_menu_page(     'my plugin',     'plugin options',     'manage_options',     'secg',     'secg_options_page_html'     ); } add_action( 'admin_menu', 'secg_options_page' ); 

handler setting default values:

function secg_option() {     $default = array(         'secg_field_test_secret_key' => 'test secret key'     );     return get_option('secg_options', $default); } 

and finally, page itself:

function secg_options_page_html() {    if ( ! current_user_can( 'manage_options' ) ) {       return;    }     if ( isset( $_get['settings-updated'] ) ) {        add_settings_error( 'secg_messages', 'secg_message', __( 'settings saved', 'secg' ), 'updated' );    }     settings_errors( 'secg_messages' );    ?>    <div class="wrap">        <h1><?php echo esc_html( get_admin_page_title() ); ?></h1>        <form action="options.php" method="post">            <?php            settings_fields( 'secg' );            do_settings_sections( 'secg' );            submit_button( 'save settings' );            ?>        </form>    </div>    <?php } 

thanks!