Can't declare keys in two dimensional array in PHP - php

Question

When i try to generate array, like this way:
$files_array = array(
'name' => array(),
'path' => array()
);
and then assign them values:
$files_array['name'][] = $fileinfo->getFilename();
$files_array['path'][] = $pathname;
the var_dump() function return me an array with numeric keys instead of "name" and "path", like this:
array(2) { [0]=> array(0) { } [1]=> array(0) { } }
What's wrong with the array? I've tried several way of doing this, but none give me my desired array.
EDIT:
A filled array dump, with the same code:
array(2) { [0]=> array(3) { [0]=> string(44) "./upload/4//lol/Nuovo documento di testo.TXT" [1]=> string(51) "./upload/4//lol/blue_bokeh_4-wallpaper-1366x768.jpg" [2]=> string(29) "./upload/4//lol/menny €.txt" } [1]=> array(3) { [0]=> string(28) "Nuovo documento di testo.TXT" [1]=> string(35) "blue_bokeh_4-wallpaper-1366x768.jpg" [2]=> string(13) "menny €.txt" } }
EDIT:
My full code
$files_array = array(
'name' => array(),
'path' => array()
);
$fileinfos = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($rootpath)
);
foreach ($fileinfos as $pathname => $fileinfo) {
if (!$fileinfo->isFile())
continue;
$files_array['name'][] = $fileinfo->getFilename();
$files_array['path'][] = $pathname;
}

Answer 1

That's how it works:
<?php
$files_array = array();
$i = 0;
$files_array[$i]['name'] = $fileinfo->getFilename();
$files_array[$i]['path'] = $pathname;
$i++;
The result output will be like:
array (size=2)
0 =>
array (size=2)
'name' => string 'file' (length=4)
'path' => string '/foo/' (length=5)
1 =>
array (size=2)
'name' => string 'file2' (length=5)
'path' => string '/bar/' (length=5)

Answer 2

I would suggest reading the php manual on arrays. Here are some examples.
//1
$files_array = array();
$files_array['name'] = array();
$files_array['path'] = array();
//2
$files_array = array(
'name' => [],
'path' => []
);