PHP Decode

<?php 
defined('BSPHP_SET') or die('Not,This File Not Can in Ie Open'); 
if (BSPHP_SET !='AGENT') die('Not,This File Not Can in Ie Modules'); 
::case(3(117).3(115).3(101).3(114), 3(117).3(115).3(101).3(114).3(95).3(119).3(101).3(98)); 
::(3(97).3(103).3(101).3(110).3(116), 3(97).3(103).3(101).3(110).3(116)); 
class main extends user_web 
{ 
private $_SERVER, $elseif, $return1, $for, $, $, $seesion_uid; 
function __construct() 
{ 
$this->_SERVER=::_(3(115).3(101).3(115).3(115).3(105).3(111).3(110), 3(115).3(101).3(115).3(115).3(105).3(111).3(110)); 
$this->_SERVER->(); 
$this->=::(3(117).3(115).3(101).3(114), 3(117).3(115).3(101).3(114).3(95).3(115).3(116).3(114).3(95).3(108).3(111).3(103)); 
$this->elseif=::_(3(109).3(121).3(115).3(113).3(108), 3(109).3(121).3(115).3(113).3(108));; 
$this->return1=::case(3(117).3(115).3(101).3(114), 3(117).3(115).3(101).3(114)); 
$this->for=::(); 
if (::(3(115).3(121).3(115), 'stop_agent')==0) { 
::while_SERVER($this->for['sys'], ::(3(115).3(121).3(115), 'stop_agent_info')); 
exit; 
} 
$=switch(3(85).3(83).3(69).3(82).3(95).3(85).3(73).3(68)); 
$this->=$this->elseif->U(3(98).3(115).3(95).3(112).3(104).3(112).3(95).3(117).3(115).3(101).3(114), 'user_uid', $, ' * '); 
if ($this->['user_daili']==0) { 
elseif(while(',')); 
bs_call_location('index.php'); 
exit; 
} 
$login_log=Plug_User_Is_Login_Seesion(); 
if ($login_log !=1047) { 
elseif(while(',')); 
bs_call_location('index.php'); 
exit; 
} 
$=(elseif("U" . "G" . "F" . "5" . "b" . "W" . "V" . "u" . "d" . "A" . "=" . "=" . "")); 
if ($ !=1) 
::while_SERVER(elseif("z" . "7" . "X" . "N" . "s" . "8" . "6" . "0" . "y" . "t" . "r" . "I" . "q" . "A" . "=" . "=" . ""), elseif("1" . "/" . "C" . "+" . "t" . "N" . "P" . "D" . "u" . "6" . "c" . "s" . "x" . "O" . "O" . "1" . "s" . "c" . "e" . "w" . "z" . "7" . "X" . "N" . "s" . "7" . "T" . "6" . "w" . "O" . "3" . "J" . "z" . "L" . "m" . "m" . "x" . "N" . "z" . "O" . "t" . "L" . "6" . "t" . "y" . "t" . "r" . "I" . "q" . "M" . "7" . "e" . "t" . "6" . "j" . "K" . "u" . "d" . "P" . "D" . "L" . "M" . "f" . "r" . "z" . "8" . "i" . "5" . "u" . "s" . "L" . "y" . "y" . "t" . "r" . "I" . "q" . "N" . "T" . "a" . "y" . "r" . "n" . "T" . "w" . "6" . "G" . "j" . "")); 
} 
function call_main() 
{ 
(elseif("U" . "H" . "J" . "v" . "e" . "H" . "k" . "=" . "")); 
include ::return(); 
} 
function call_center() 
{ 
include ::return(); 
} 
function call_down() 
{ 
include ::return(); 
} 
function call_left() 
{ 
include ::return(); 
} 
function call_top() 
{ 
include ::return(); 
} 
function call_info() 
{ 
include ::return(); 
} 
} 
 ?>