var JSONstr = JSON.stringify(fullInfoArray);
document.getElementById('JSONfullInfoArray').value= JSONstr;

$data = json_decode($_POST["JSONfullInfoArray"]);
var_dump($data);

echo($_POST["JSONfullInfoArray"]);

$postedData = $_POST["JSONfullInfoArray"];
$tempData = str_replace("\", "",$postedData);
$cleanData = json_decode($tempData);
var_dump($cleanData);

$tempData = html_entity_decode($tempData);
$cleanData = json_decode($tempData);

stripslashes(htmlspecialchars(JSON_DATA))

var JSONstr = encodeURIComponent(JSON.stringify(fullInfoArray));
document.getElementById('JSONfullInfoArray').value = JSONstr;

$data = json_decode($_POST["JSONfullInfoArray"]);
var_dump($data);

echo($_POST["JSONfullInfoArray"]);