Possible Duplicate:
Stackoverflow type of badge plugin giving warnings in Wordpress 3.5

我的网站上出现一个错误，上面说：

Warning: Missing argument 2 for wpdb::prepare(), called in /home/blahblahblah/public_html/wp-content/mu-plugins/domain-mapping.php on line 489 and defined in /home/blahblahblah/public_html/wp-includes/wp-db.php on line 990

这是我的理解this is because now in WP 3.5 wpdb::prepare() requires you to use an array. 下面是域映射的第489行的违规代码。php：

$olddomain = $this->db->get_var( $this->db->prepare( "SELECT option_value FROM {$this->db->options} WHERE option_name=\'siteurl\' LIMIT 1 /* domain mapping */" ) );

如何将其更改为数组，使其不再引起错误？

在里面this thread 其他几个人也有类似但不同的问题。发布了一些修复，但我很难将其转换为我的解决方案。

如果有助于提供上下文，那么下面是整个函数的代码：

    function swap_mapped_url($url, $path, $plugin = false) {
    global $current_blog, $current_site, $mapped_id;

    // To reduce the number of database queries, save the results the first time we encounter each blog ID.
    static $swapped_url = array();

    if ( !isset( $swapped_url[ $this->db->blogid ] ) ) {
        $s = $this->db->suppress_errors();
        $newdomain = $this->db->get_var( $this->db->prepare( "SELECT domain FROM {$this->dmt} WHERE domain = %s AND blog_id = %d LIMIT 1 /* domain mapping */", preg_replace( "/^www\\./", "", $_SERVER[ \'HTTP_HOST\' ] ), $this->db->blogid ) );
        //$olddomain = str_replace($path, \'\', $url);
        $olddomain = $this->db->get_var( $this->db->prepare( "SELECT option_value FROM {$this->db->options} WHERE option_name=\'siteurl\' LIMIT 1 /* domain mapping */" ) );

        if ( empty( $domain ) ) {
            $domain = $this->db->get_var( $this->db->prepare( "SELECT domain FROM {$this->dmt} WHERE blog_id = %d /* domain mapping */", $this->db->blogid ) );
        }

        $this->db->suppress_errors( $s );
        $protocol = ( \'on\' == strtolower( $_SERVER[\'HTTPS\' ] ) ) ? \'https://\' : \'http://\';
        if ( $domain ) {

            $innerurl = trailingslashit( $protocol . $domain . $current_site->path );
            $newurl = str_replace($olddomain, $innerurl, $url);
            $swapped_url[ $this->db->blogid ] = array($olddomain, $innerurl);
            $url = $newurl;
        } else {
            $swapped_url[ $this->db->blogid ] = false;
        }
    } elseif ( $swapped_url[ $this->db->blogid ] !== FALSE) {
        $olddomain = $swapped_url[ $this->db->blogid ][0];
        $url = str_replace($olddomain, $swapped_url[ $this->db->blogid ][1], $url);
    }

    return $url;


}

$olddomain = $this->db->get_var( "SELECT option_value FROM {$this->db->options} WHERE option_name=\'siteurl\' LIMIT 1" );