Null at the end of the JSon

Grunard

I'm using Ajax to get a Json from a class in PHP but when I get the result it always comes with a null at the end of this.
For example

-[{"checkbox":"Prueba","internal_id":"Prueba","id_invoice":"Prueba","type":"Prueba","billing_period":"Prueba","invoice_date":"02\/09\/2016","due_date":"Prueba","payment_date":"Prueba","customer_id":"Prueba","customer_name":"Prueba","total_invoice":"Prueba","visible":"Prueba"}]null

My datatable code is:

`$('#invoices').dataTable( {
"paging": false,
"info": false,
"processing": true,
"bFilter": false,
"destroy" : true,
"ajax": {
"url": "/invoices/filter_invoices",
"dataSrc":'',
"type":"POST",
"data": {
"billingperiod": "N-N",
"invoicedate": '',
"duedate": '',
"paymentdate": '',
"invoicedateF": '',
"duedateF": '',
"paymentdateF": '',
"type": '0',
"searchcustomer": '0000/0000',
"bycustomer": '4'
}
},
"columns": [
{ "data": "checkbox" },
{ "data": "id_invoice" },
{ "data": "type" },
{ "data": "billing_period" },
{ "data": "invoice_date" },
{ "data": "due_date" },
{ "data": "payment_date" },

                                        { "data": "customer_name" },
                                        { "data": "total_invoice","type": "num"},
                                        { "data": "visible" },
                                        { "data": "internal_id" },
                                        { "data": "customer_id" },
                                   ]
                               } );`

Thanks in advance

Tester2017

The null is generated in your PHP code. So you have to look there. Before you send an "echo json_encode" place a "print_r(what-you-wished-to-send"); in your PHP to see what is happening.

Grunard

the result of print_r() is
Array ( [0] => Array ( [checkbox] => Prueba [internal_id] => Prueba [id_invoice] => Prueba [type] => Prueba [billing_period] => Prueba [invoice_date] => 02/09/2016 [due_date] => Prueba [payment_date] => Prueba [customer_id] => Prueba [customer_name] => Prueba [total_invoice] => Prueba [visible] => Prueba ) )

Don´t have null.

allan

The null isn't in the JSON object as such, which suggests that it wouldn't be shown by the print_r() statement. There is likely an echo or print or something like that somewhere else in the PHP that is output that null independently.

Allan

allan

The null isn't in the JSON object as such, which suggests that it wouldn't be shown by the print_r() statement. There is likely an echo or print or something like that somewhere else in the PHP that is output that null independently.

Allan