Looping multidimensional array just show one index while index is more than one

You re-declare the value each time.

PHP Code:

$msg['attachment'] = $attachlist;

//use 
$msg['attachment'][] = $attachlist;
//or 
$msg['attachment'][] = [
    'name' => ....,
    'subtype' => ....,
]; 


Thankyouu, it's work for me