How to pass nested array via ajax?

Question

JavaScript

there is an array in php with a nesting of the form:

[
'f1' => 'ssss',
'f2' => 'sss2'
'f' => [
'11'=>'ww',
'www'=>'wcec'
]
]

I have an ajax request:

$.post(
      url,
      {f1:'ww',f2:'ww'},
      function(data){
         // тут не важно
      }
);

How to form data from an array for ajax in jquery? It flipped over thoroughly. jquery is output by the php script, so it can be inserted as a variable, but how?

Answer 1

<?php 
     $arr=[
        'f1' => 'ssss',
        'f2' => 'sss2',
        'f' => [
            '11'=>'ww',
            'www'=>'wcec'
        ]
    ];

    echo json_encode($arr);

it turns out

{"f1":"ssss","f2":"sss2","f":{"11":"ww","www":"wcec"}}

Answer 2

Normally serialize() on the form does this for you, but in AJAX just pass serialize as parameters

Answer 3

On php json_encode