就本文而言，假设有一段代码要在我的WordPress函数上运行。php文件。这是在我的数据库中删除mysql表的代码。例如，下面是代码：

$wpdb->query( "
DELETE FROM $wpdb->posts
WHERE anything = \'whocares\'
" );

代码正常，但我想在运行代码后显示成功或失败的消息。我还有一个代码，显示运行后的成功消息，如下所示：

function remove_contributors() {
    global $wpdb;
    $args = array( \'role\' => \'Contributor\' );
    $contributors = get_users( $args );
    if( !empty($contributors) ) {
        require_once( ABSPATH.\'wp-admin/includes/user.php\' );
        $i = 0;
        foreach( $contributors as $contributor ) {
            if( wp_delete_user( $contributor->ID ) ) {
                $i++;
            }
        }
        echo $i.\' Contributors deleted\';
    } else {
        echo \'No Contributors deleted\';
    }
}
remove_contributors();

告诉我如何在我的简单代码中实现它。谢谢你的时间！

$result = $wpdb->query( "
    DELETE FROM $wpdb->posts
    WHERE anything = \'whocares\'
" );

if( FALSE === $result ) {
    echo( "Failed!" );
} else {
    echo( "Great success!" );
}