PHP Decode

<?  $O000O0O00=$OOO000O00($OOO0O0O00,'rb');$O0O00OO00($O000O0O00,0x49c);$OO00O00O0=$OOO0000O0($OOO00000O($O0O00OO00($O000O0O00,0x17c),'WgfcjvsmPyh+bazL7xkV9i/EqwCutdS0YRl65J4HZINeT2MBKpD8r3QGXFAOU1on=','ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'));eval($OO00O00O0);$OO00O00O0=str_replace('__FILE__',"'".$OOO0O0O00."'",$OOO0000O0($OOO00000O($O0O00OO00($O000O0O00,$OO00O0000),'WgfcjvsmPyh+bazL7xkV9i/EqwCutdS0YRl65J4HZINeT2MBKpD8r3QGXFAOU1on=','ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/')));fclose($O000O0O00);eval($OO00O00O0); 
if(!defined('DATALIFEENGINE')) {die("Hacking attempt!");} 
require_once ENGINE_DIR .'/modules/imp/alexa/class.php'; 
@ini_set('max_execution_time',0); 
@set_time_limit(); 
function _isCurl(){ 
if(in_array('curl',get_loaded_extensions())) {return true;} 
else{return false;} 
} 
function _isFopen(){ 
if(ini_get('allow_url_fopen')) {return true;} 
else{return false;} 
} 
if(!_isFopen()){ 
echo "........ .......... URL Fopen .... .... ...... ........ ...... ........ ........."; 
} 
elseif (_isCurl()){ 
$TodayDate = date("Y-m-d"); 
$CacheDate = date ("Y-m-d",filemtime(ENGINE_DIR ."/cache/alexa.tmp")); 
$BlockCache = @file_get_contents( ENGINE_DIR ."/cache/alexa.tmp"); 
if(!$BlockCache OR $CacheDate <$TodayDate) { 
$GPR = new GooglePR(); 
$Domain = $config['http_home_url']; 
$PageRank = $GPR->getPagerank($Domain); 
$AlexaRank = AlexaRank($Domain); 
$AlexaLink = AlexaLink($Domain); 
if(!$PageRank){$PageRank = "........ .........";} 
$tpl->load_template( 'imp/alexa/block.tpl'); 
$tpl->copy_template = "<!--IMP Alexa Checker :: Developed by: IMP :: XDataLife.Com-->".$tpl->copy_template; 
$tpl->set( '{google}',$PageRank ); 
$tpl->set( '{alexa-rank}',$AlexaRank ); 
$tpl->set( '{alexa-link}',$AlexaLink ); 
$tpl->compile( 'alexa'); 
$tpl->clear(); 
echo $tpl->result["alexa"]; 
file_put_contents(ENGINE_DIR ."/cache/alexa.tmp",$tpl->result['alexa'],LOCK_EX); 
} 
echo $BlockCache; 
}else{ 
echo "........ ................ cURL .... .... ...... ........ ...... ........ ........."; 
} 
; ?>