在数组中显示数组？

Question

I have an array inside an array and I'd like to simply print out the contents of it... the problem is what I'm trying doesn't work... ie

        foreach($retval as $k=>$v){

          if (is_array($v)){

            foreach($v as $l=>$w){

            echo $l . ' = ' . $w . '<br />';

            }

        } else {

          echo $k . ' = ' . $v . '<br />';

        }

Doing that however I end up with:

id = 2

name = Speakers

form_field = hidden

display_order = 0

groups = Array

So I'm not getting a foreach in that inside array.. what am I doing wrong? It seems actually that my code believes everything return is an array when I'm pretty sure that only 'groups' is an array.

---

the structure of the array looks like so:

array ( 0 => array ( 'id' => 2, 'name' => 'Speakers', 'form_field' => 'hidden', 'display_order' => '0', 'groups' => array ( 0 => array ( 'bit' => '1', 'name' => 'don', 'display_order' => '4', 'subscribers' => 8, ), 1 => array ( 'bit' => '2', 'name' => 'tyler', 'display_order' => '5', 'subscribers' => 0, ), 2 => array ( 'bit' => '4', 'name' => 'stephen', 'display_order' => '6', 'subscribers' => 0, ), 3 => array ( 'bit' => '8', 'name' => 'daniel', 'display_order' => '7', 'subscribers' => 0, ), 4 => array ( 'bit' => '16', 'name' => 'william', 'display_order' => '8', 'subscribers' => 0, ), 5 => array ( 'bit' => '32', 'name' => 'bobbys', 'display_order' => '9', 'subscribers' => 0, ), ), ), )

Long story short, I'm actually just trying to search this whole thing for say the name 'bobby' and get a simple true or false on whether that value exists anywhere in there.

Answer 1

You're assuming that arrays are only doubly-nested, when $retval[<something>]['groups'] is also an array. Use recursion to handle this instead of just adding levels upon levels.