AJAX POST Object return partial data - php

Question

I'm using wamp64 webserver and I'm try to post some values to a PHP script to create a PDF (with TCPDF library).
I've a lot (more or less 80) of field to pass (POST) with AJAX and the problem seems to be the amount of variable (or memory, I don't know).
If I try to pass less variable everything it is OK, but when I try to POST the complete set of fields PHP returns an error regarding indexing of Object I'm passing.
This is what I'm try to POST:
$('#btnGeneraPDF').click(function() {
var campi = {
//DATI RICHIESTA VERIFICA
dataCompilazione: $('#data-compilazione').val(),
dataAccettazione: $('#data-accettazione').val(),
rifPreventivo: $('#cod-preventivo').val(),
codRichiesta: $('#cod-rdv').val(),
//DATI UTENTE METRICO
UMragSociale: $('#UM-ragSociale').val(),
UMpiva: $('#UM-piva').val(),
UMrea: $('#UM-rea').val(),
//DATI REFERENTE
REFnominativo: $('#ref-nominativo').val(),
REFtelefono: $('#ref-telefono').val(),
REFemail: $('#ref-email').val(),
REFindirizzo: $('#ref-indirizzo').val(),
REFcomune: $('#ref-comune').val(),
REFprovincia: $('#ref-provincia').val(),
REFcap: $('#ref-cap').val(),
REFnote: $('#ref-note').val(),
STRtipo1: $('#STRtipo1 :selected').text(),
STRmarca1: $('#STRmarca1').val(),
STRmodello1: $('#STRmodello1').val(),
STRmatricola1: $('#STRmatricola1').val(),
STRpistole1: $('#STRpistole1').val(),
STRportata1: $('#STRportata1').val(),
STRprePostPay1: $('#STRprePostPay1 :checked').val(),
STRnote1: $('#STRnote1').val(),
STRtipo2: $('#STRtipo2 :selected').text(),
STRmarca2: $('#STRmarca2').val(),
STRmodello2: $('#STRmodello2').val(),
STRmatricola2: $('#STRmatricola2').val(),
STRpistole2: $('#STRpistole2').val(),
STRportata2: $('#STRportata2').val(),
STRprePostPay2: $('#STRprePostPay2 :checked').val(),
STRnote2: $('#STRnote2').val(),
STRtipo3: $('#STRtipo3 :selected').text(),
STRmarca3: $('#STRmarca3').val(),
STRmodello3: $('#STRmodello3').val(),
STRmatricola3: $('#STRmatricola3').val(),
STRpistole3: $('#STRpistole3').val(),
STRportata3: $('#STRportata3').val(),
STRprePostPay3: $('#STRprePostPay3 :checked').val(),
STRnote3: $('#STRnote3').val(),
STRtipo4: $('#STRtipo4 :selected').text(),
STRmarca4: $('#STRmarca4').val(),
STRmodello4: $('#STRmodello4').val(),
STRmatricola4: $('#STRmatricola4').val(),
STRpistole4: $('#STRpistole4').val(),
STRportata4: $('#STRportata4').val(),
STRprePostPay4: $('#STRprePostPay4 :checked').val(),
STRnote4: $('#STRnote4').val(),
STRtipo5: $('#STRtipo5 :selected').text(),
STRmarca5: $('#STRmarca5').val(),
STRmodello5: $('#STRmodello5').val(),
STRmatricola5: $('#STRmatricola5').val(),
STRpistole5: $('#STRpistole5').val(),
STRportata5: $('#STRportata5').val(),
STRprePostPay5: $('#STRprePostPay5 :checked').val(),
STRnote5: $('#STRnote5').val(),
STRtipo6: $('#STRtipo6 :selected').text(),
STRmarca6: $('#STRmarca6').val(),
STRmodello6: $('#STRmodello6').val(),
STRmatricola6: $('#STRmatricola6').val(),
STRpistole6: $('#STRpistole6').val(),
STRportata6: $('#STRportata6').val(),
STRprePostPay6: $('#STRprePostPay6 :checked').val(),
STRnote6: $('#STRnote6').val(),
STRtipo7: $('#STRtipo7 :selected').text(),
STRmarca7: $('#STRmarca7').val(),
STRmodello7: $('#STRmodello7').val(),
STRmatricola7: $('#STRmatricola7').val(),
STRpistole7: $('#STRpistole7').val(),
STRportata7: $('#STRportata7').val(),
STRprePostPay7: $('#STRprePostPay7 :checked').val(),
STRnote7: $('#STRnote7').val(),
STRtipo8: $('#STRtipo8 :selected').text(),
STRmarca8: $('#STRmarca8').val(),
STRmodello8: $('#STRmodello8').val(),
STRmatricola8: $('#STRmatricola8').val(),
STRpistole8: $('#STRpistole8').val(),
STRportata8: $('#STRportata8').val(),
STRprePostPay8: $('#STRprePostPay8 :checked').val(),
STRnote8: $('#STRnote8').val(),
note: $('#rdv-note').val()
};
//GENERAZIONE PDF
$.ajax({
type: 'POST',
url: 'mysite/pdf/save.php',
async: true,
cache: false,
data: {data: campi},
beforeSend: function(){
},
success: function(response) {
console.log (campi);
setTimeout( function() {
console.log("AJAX SUCCESS");
}, 10 );
if (!response.status) {
alert("Error calling save");
return;
}
if (response.status != 'OK') {
alert(response.status);
return;
}
// We had a response and it was "OK". We're good.
window.open("mysite/pdf/pdfTest.php");
},
error: function( XMLHttpRequest, textStatus, errorThrown ) {
console.log("AJAX ERROR: \n" + errorThrown);
console.log("AJAX ERROR: \n" + textStatus);
}
});
})
This is save.php
<?php // this is save.php
session_start();
// DO NOT just copy from _POST to _SESSION,
// as it could allow a malicious user to override security.
// Use a disposable variable key, such as "data" here.
if (array_key_exists('data', $_POST)) {
$_SESSION['data'] = $_POST['data'];
$_SESSION['data.timestamp'] = time();
// Let us let the client know what happened
$msg = 'OK';
} else {
$msg = 'No data was supplied';
}
Header('Content-Type: application/json; charset=utf8');
die(json_encode(array('status' => $msg)));
?>
The HTML code is:
<div class="tab-pane fade in active" id="tab1">
<form class="form-horizontal" role="form">
<div class="form-group">
<label for="STRtipo" class="control-label sr-only">Tipo</label>
<div class="col-sm-2">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-book"></i></span>
<select name="select2" id="STRtipo1" class="form-control">
<option value=" "> </option>
<option value="NAZ">NAZ</option>
<option value="MID">MID</option>
</select>
</div>
</div>
<label for="STRmarca" class="control-label sr-only">Marca</label>
<div class="col-sm-2">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-book"></i></span>
<input type="text" class="form-control" id="STRmarca1" placeholder="Marca">
</div>
</div>
<label for="STRmodello" class="control-label sr-only">Modello</label>
<div class="col-sm-2">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-book"></i></span>
<input type="text" class="form-control" id="STRmodello1" placeholder="Modello">
</div>
</div>
<label for="STRmatricola" class="control-label sr-only">Matricola</label>
<div class="col-sm-2">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-book"></i></span>
<input type="text" class="form-control" id="STRmatricola1" placeholder="Matricola">
</div>
</div>
<label for="STRpistole" class="control-label sr-only">Pistole</label>
<div class="col-sm-2">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-book"></i></span>
<input type="text" class="form-control" id="STRpistole1" placeholder="Pistole">
</div>
</div>
<label for="STRportata" class="control-label sr-only">Pistole</label>
<div class="col-sm-2">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-book"></i></span>
<input type="text" class="form-control" id="STRportata1" placeholder="Portata">
</div>
</div>
</div>
</form>
<form class="form-horizontal" role="form">
<div class="form-group">
<label class="col-sm-2 fancy-checkbox">
<input type="checkbox" id="STRprePostPay1" value="1">
<span>Pre / Post Pay</span>
</label>
<label for="STRnote" class="col-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-book"></i></span>
<input type="text" class="form-control" id="STRnote1" placeholder="Note">
</div>
</label>
</div>
</form>
</div>
And it is made for each of 8 instruments, using jQuery:
var tabContent=$('#tab1').clone();
for (i=2;i<=nTab;i++){
$('#tab' + i).append(tabContent.html());
}
for (i=2;i<=nTab;i++){
$('#tab'+i+' select').attr('id','STRtipo' + i);
$('#tab'+i).find('#STRmarca1').attr('id','STRmarca' + i);
$('#tab'+i).find('#STRmodello1').attr('id','STRmodello' + i);
$('#tab'+i).find('#STRmatricola1').attr('id','STRmatricola' + i);
$('#tab'+i).find('#STRpistole1').attr('id','STRpistole' + i);
$('#tab'+i).find('#STRportata1').attr('id','STRportata' + i);
$('#tab'+i).find('#STRprePostPay1').attr('id','STRprePostPay' + i);
$('#tab'+i).find('#STRnote1').attr('id','STRnote' + i);
}
This code doesn't work... but if i comment some field in the object 'campi', everything works fine. In particular the problem returned from PHP is on 'STRprePostPay1' variable... It tell that is not passed, and if I put a print_r function, I see that that variable is not passed.
Can someone help me?
THanks