Error when try to get JSON from GET request

Projects Programming
1

Problem: I wanna get the JSON data that I create in a PHP file ( {"2":"1"} ), and then I echo it in that empty PHP file (no html whatsoever, not even header('Content-Type: application/json');), and then I want to use this code for ESP8622 to get that JSON data:

const char* serverName = "XXX Sex - Free Porn Videos at XXX.com";
WiFiClient client;
HTTPClient http;
http.begin(client, serverName);
String payload = "";
payload = http.getString();
JSONVar myObject = JSON.parse(payload);

if (JSON.typeof(myObject) == "undefined") {
Serial.println("Parsing input failed!");
return;
}else{
Serial.println("YEAH :)!");
}

I´m stuck with:"Parsing input failed!";

Why? the
payload = http.getString();
returns some HTML as there was some header('Content-Type: application/json'); and this is the result:

<!doctype html>

Untitled Document {"2":"1"}

As you can see there is that garbage HTML and the JSON data is after the closing tag yet the PHP file has NO html at all. If I include the header('Content-Type: application/json') in my PHP file then I CAN see that extra HTML in the page as the String created with http.getString() is showing; but there's not need for that extra info, I just need a blank PHP file with json data: {"2":"1"}.

Clean this HTML up isn't the job of JSON.parse(payload);?
How can I just extract the JSON part ({"2":"1"}) from the resulted String from http.getString();?

I'm using these libraries.
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>
#include <Arduino_JSON.h>
#include <ESP8266WiFiMulti.h>

2

You were right, there are some more php files involve and one of then have that extra HTMl garbage at the bottom, since Im really newbie with Arduino and this whole thing I was totally clueless about the normal behaviour.

Since this is just a stupid question since has nothing to do with Arduino or libraries a mod should delete it. Thanks for your time.