array sent by ajax does not reach full php

I have an array of 61 elements, each element of that array is another array

Array(61) [ {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, … ], 

The issue is that when I sent it as a parameter to php and I do a print_r it only prints me 48 elements

$.ajax({
  type: 'POST',
  url: 'controllers/sendMailAcuse.php',
  dataType: 'json',
  data: {
    //receivers: receivers,
    action: 'sendAccuse',
    response: 'json',
    package: source // este es mi array
  }
}).always(function(res) {
  dom.$accuseDialog.modal('hide');
  showMessage(res.message);
});

Does anyone know why ??