求以下php混淆方式实现代码-php教程

${"GLOBALS"}["xcxpph"] = "protectedChars";
${"GLOBALS"}["nxaluweq"] = "tempUrl";
${"GLOBALS"}["bpqvmkve"] = "domainLength";
${"GLOBALS"}["emwhettg"] = "tempURLs";
${"GLOBALS"}["puhwuyrf"] = "partNum";
${"GLOBALS"}["ieihymjca"] = "targetURL";
${"GLOBALS"}["atndyantqovv"] = "targetDomain";
${"GLOBALS"}["vhgestq"] = "Atag";
${"GLOBALS"}["vtgjjko"] = "the_list_url";
${"GLOBALS"}["ilxxjlskus"] = "contextOptions";
${"GLOBALS"}["pxsqemhbaxs"] = "headerstrings";
${"GLOBALS"}["nfqwlim"] = "tempValue";

function xmltext()
    {
        ${"GLOBALS"}["koqdbjn"] = "ret";
        $xrspsjeehifm = "ret";
        ${"GLOBALS"}["xlsyxp"] = "ret";
        ${${"GLOBALS"}["qzawbrpom"]} = $this->innertext();
        ${${"GLOBALS"}["xlsyxp"]} = str_ireplace("", "", ${${"GLOBALS"}["koqdbjn"]});
        return ${${"GLOBALS"}["edrmol"]};
    }

以上为截取的部分代码，跪求大神指点

回复内容：

${"GLOBALS"}["xcxpph"] = "protectedChars";
${"GLOBALS"}["nxaluweq"] = "tempUrl";
${"GLOBALS"}["bpqvmkve"] = "domainLength";
${"GLOBALS"}["emwhettg"] = "tempURLs";
${"GLOBALS"}["puhwuyrf"] = "partNum";
${"GLOBALS"}["ieihymjca"] = "targetURL";
${"GLOBALS"}["atndyantqovv"] = "targetDomain";
${"GLOBALS"}["vhgestq"] = "Atag";
${"GLOBALS"}["vtgjjko"] = "the_list_url";
${"GLOBALS"}["ilxxjlskus"] = "contextOptions";
${"GLOBALS"}["pxsqemhbaxs"] = "headerstrings";
${"GLOBALS"}["nfqwlim"] = "tempValue";

function xmltext()
    {
        ${"GLOBALS"}["koqdbjn"] = "ret";
        $xrspsjeehifm = "ret";
        ${"GLOBALS"}["xlsyxp"] = "ret";
        ${${"GLOBALS"}["qzawbrpom"]} = $this->innertext();
        ${${"GLOBALS"}["xlsyxp"]} = str_ireplace("", "", ${${"GLOBALS"}["koqdbjn"]});
        return ${${"GLOBALS"}["edrmol"]};
    }

以上为截取的部分代码，跪求大神指点