How to add/append value to an array item in PHP?

Question

I am learning a CI, I got a tutorial,Its a little old, In that trutorial it shows working without any issue, but I am getting a notice like this :: A PHP Error was encountered Severity: Notice Message: Array to string conversion

Here is the code::

$rules = array(
    'name'=>array(
        'field'=>'name', 
        'label'=>'Name', 
        'rules'=>'trim|required'
    ),
    'email'=>array(
        'field'=>'email', 
        'label'=>'Email', 
        'rules'=>'trim|required|valid_email|callback__unique_email'
    ),
    'password'=>array(
        'field'=>'password', 
        'label'=>'Password', 
        'rules'=>'trim|matches[password_confirm]'
    )
)

To add a required rule to password filed, it was used like this

$rules['password'] .= '|required';

But when I use this, not working, when I var dump, I am getting this

'password' => string 'Array|required' (length=14)

I am using PHP 5.6, Is there any thing wrong with the code, any help will be appreciated. thank you

Expected value will be like this

    array (size=4)
  'name' => 
    array (size=3)
      'field' => string 'name' (length=4)
      'label' => string 'Name' (length=4)
      'rules' => string 'trim|required' (length=13)
  'email' => 
    array (size=3)
      'field' => string 'email' (length=5)
      'label' => string 'Email' (length=5)
      'rules' => string 'trim|required|valid_email|callback__unique_email' (length=48)
  'password' => 
    array (size = 3)
    'field' => string 'password' (length=16)
        'label' => string 'Password' (length=16)
        'rules' => string 'trim|matches[confirm_password]|required' (length=22)

$rules['password']['rules'] .= '|required';

Charlotte Dunois
– Charlotte Dunois

2016-11-27 16:06:56 +00:00
Commented Nov 27, 2016 at 16:06 — Charlotte Dunois
– Charlotte Dunois, Commented Nov 27, 2016 at 16:06
thats it, thank you

Salih K
– Salih K

2016-11-27 16:11:02 +00:00
Commented Nov 27, 2016 at 16:11 — Salih K
– Salih K, Commented Nov 27, 2016 at 16:11

Roman Che · Accepted Answer · 2016-11-27 16:09:01Z

1

I think you need right index specification: $rules['password']['rules'] .= '|required';

answered Nov 27, 2016 at 16:09

Roman Che

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