我正在构建一个小插件，基本上有一个设置页面，其中包含四个文本字段和两个复选框。一切正常，包括复选框，只要其中一个或两个都打勾。如果没有，我会收到一条错误消息，说：

警告：array\\u merge（）：参数#2不是。。。

这将是minevalg\\u hent\\u innstillinger函数中的第二个参数；

function minevalg_hent_innstillinger() {
                $defaults = array(); // define this somewhere; reference it here
                return array_merge( $defaults, get_option( \'minevalg\', array() ) );
            }

是否有人知道如何使复选框正常工作，而不会在每次取消选中这两个复选框时都出现此错误？提前谢谢。

完整代码：

 <?php
add_action(\'admin_menu\', \'my_plugin_menu\');

function my_plugin_menu() {
    add_menu_page(\'Fire valgfrie bilder\', \'EKK-innstillinger\', \'administrator\', \'djj-fbpt-innstillinger\', \'djj_fbpt_innstillinger\', \'dashicons-admin-generic\');
}

function djj_fbpt_innstillinger() {
    ?>
  <div class="wrap">
<h2>Fire valgfrie bilder</h2>

<form method="post" action="options.php">
    <?php settings_fields( \'djj-fbpt-innstillinger-gruppe\' ); ?>
    <?php do_settings_sections( \'djj-fbpt-innstillinger-gruppe\' ); ?>
    <table class="form-table">



    <?php

        function minevalg_hent_innstillinger() {
            $defaults = array(); // define this somewhere; reference it here
            return array_merge( $defaults, get_option( \'minevalg\', array() ) );
        }
        $options = minevalg_hent_innstillinger();
    ?>
        <tr valign="top">
        <th scope="row">Skal bildene vises?</th>
        <td>
        <input type="checkbox" name="minevalg[valg_1]" value="1" <?php checked( $options[\'valg_1\'], 1 ); ?> />
        </td>
        </tr>

        <tr valign="top">
        <th scope="row">Kun på forsiden?</th>
        <td>
        <input type="checkbox" name="minevalg[valg_2]" value="1" <?php checked( $options[\'valg_2\'], 1 ); ?> />
        </td>
        </tr>

        <tr valign="top">
        <th scope="row">Bilde 1</th>
        <td><input type="text" name="bilde1" value="<?php echo esc_attr( get_option(\'bilde1\') ); ?>" /></td>
        </tr>

        <tr valign="top">
        <th scope="row">Bilde 2</th>
        <td><input type="text" name="bilde2" value="<?php echo esc_attr( get_option(\'bilde2\') ); ?>" /></td>
        </tr>

        <tr valign="top">
        <th scope="row">Bilde 3</th>
        <td><input type="text" name="bilde3" value="<?php echo esc_attr( get_option(\'bilde3\') ); ?>" /></td>
        </tr>

        <tr valign="top">
        <th scope="row">Bilde 4</th>
        <td><input type="text" name="bilde4" value="<?php echo esc_attr( get_option(\'bilde4\') ); ?>" /></td>
        </tr>

    </table>

    <?php submit_button(); ?>

</form>
</div>
<?php
}

add_action( \'admin_init\', \'my_plugin_settings\' );

function my_plugin_settings() {
    register_setting( \'djj-fbpt-innstillinger-gruppe\', \'minevalg\' );
    register_setting( \'djj-fbpt-innstillinger-gruppe\', \'bilde1\' );
    register_setting( \'djj-fbpt-innstillinger-gruppe\', \'bilde2\' );
    register_setting( \'djj-fbpt-innstillinger-gruppe\', \'bilde3\' );
    register_setting( \'djj-fbpt-innstillinger-gruppe\', \'bilde4\' );
}

$djj_minevalg;

function djj_fbpt_til_theme() {

    $djj_bilde1 = esc_attr( get_option(\'bilde1\'));
    $djj_bilde2 = esc_attr( get_option(\'bilde2\'));
    $djj_bilde3 = esc_attr( get_option(\'bilde3\'));
    $djj_bilde4 = esc_attr( get_option(\'bilde4\'));

    $djj_bilder[\'1\'] = $djj_bilde1;
    $djj_bilder[\'2\'] = $djj_bilde2;
    $djj_bilder[\'3\'] = $djj_bilde3;
    $djj_bilder[\'4\'] = $djj_bilde4;
    return $djj_bilder;
}

// funksjonen kjøres hvis fire bilder skal vises
$options = get_option( \'minevalg\' );

if(isset( $options[\'valg_1\'])) :
    add_action( \'wp_enqueue_scripts\', \'djj_firebilder_css_synlig\' );
else : // ellers kjøres en css-fil som gjemmer bildene
    add_action( \'wp_enqueue_scripts\', \'djj_firebilder_css_usynlig\' );
endif;

function djj_firebilder_css_synlig() {
    wp_enqueue_style( \'firebilder\', plugin_dir_url( __FILE__ ) . \'/css/firebilder.css\' );
}
function djj_firebilder_css_usynlig() {
    wp_enqueue_style( \'firebilder\', plugin_dir_url( __FILE__ ) . \'/css/firebilder_skjult.css\' );
}
?>

function minevalg_hent_innstillinger() {
    $defaults = array(); // define this somewhere; reference it here

    if ( is_array( $options = get_option( \'minevalg\' ) ) )
        $options = array_merge( $defaults, $options );
    else
        $options = $defaults; 

    return $options;
}