<?php

header('Content-Type: application/json; charset=utf-8');

$q = $_REQUEST["q"];
$key = "API_KEY";

if($q == ""){
$myfile = fopen("cache.txt", "r") or die("Unable to open file!");
$teks = fread($myfile,filesize("cache.txt"));
fclose($myfile);

$pieces = explode("=", $teks);

$marks = array("price"=>$pieces[0], "price_change"=>$pieces[1], "change"=>$pieces[2], "last_update"=>$pieces[3], "server_update"=>$pieces[4]);
 
echo json_encode($marks, JSON_PRETTY_PRINT);
}
else {
$txt = base64_decode($q);

$pieces = explode("=", $txt);

if(strcmp($pieces[5], $key) == 0) { 
  $myfile = fopen("cache.txt", "w") or die("Unable to open file!");
  fwrite($myfile, $txt);
  fclose($myfile);
  echo "Done!";
}
else {
  echo "Key Invalid";
  fclose($myfile);
}
}
?>