Online PHP Javascript Script Decoder

Online PHP and Javascript Decoder decode hidden script to uncover its real functionality

Original code:

<?php


if (isset($_REQUEST["\x61\x63\164\x69\157\156"])) {
    goto TS;
}
require "\x61\160\x70\x5f\x63\157\155\160\157\156\145\156\164\x73\x2f\x61\x64\x64\x5f\141\x70\x70\x5f\x70\141\x67\145\x2e\x70\150\160";
goto fj;
TS:
if ($_REQUEST["\141\x63\x74\151\157\156"] === "\165\160\x64\x61\x74\x65") {
    goto eT;
}
if ($_REQUEST["\x61\x63\164\151\x6f\x6e"] === "\144\x65\x6c\x65\164\145") {
    goto JE;
}
if (!($_REQUEST["\141\143\x74\151\x6f\156"] === "\141\x64\144")) {
    goto Uh;
}
require "\141\160\160\x5f\x63\157\x6d\160\x6f\156\x65\x6e\x74\x73\57\x61\144\144\137\141\x70\160\x5f\160\141\147\145\x2e\x70\150\160";
Uh:
goto Lu;
JE:
require "\x61\160\x70\137\143\x6f\155\x70\x6f\x6e\x65\156\x74\x73\57\144\x65\x6c\145\164\x65\x61\x70\160\x2e\x70\150\x70";
require "\141\160\160\137\143\x6f\155\160\x6f\156\x65\x6e\x74\163\57\x61\x64\x64\137\141\x70\x70\x5f\x70\141\147\145\x2e\x70\x68\x70";
Lu:
goto bo;
eT:
require "\141\x70\x70\137\x63\157\155\x70\x6f\156\145\x6e\x74\x73\57\x75\x70\144\141\164\145

Decrypted code:

if (isset($_REQUEST["action"])) {
    goto TS;
}
require "app_components/add_app_page.php";
goto fj;
TS:
if ($_REQUEST["action"] === "update") {
    goto eT;
}
if ($_REQUEST["action"] === "delete") {
    goto JE;
}
if (!($_REQUEST["action"] === "add")) {
    goto Uh;
}
require "app_components/add_app_page.php";
Uh:
goto Lu;
JE:
require "app_components/deleteapp.php";
require "app_components/add_app_page.php";
Lu:
goto bo;
eT:
require "app_components/update

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