accessing information in a multidimensional array

giving me a headache

[londrum]

hello. im wondering (hoping!) that someone with more brains than me can work this out. spent half a day on it and i cant figure it out. im not too good when it comes to arrays

i've got a forum-type thing that displays a load of posts. and each post has an ID number. i need to access that number, so i can use it in my template.

i have figured out (using get_defined_vars) that these numbers are definitely contained in a big array, which presumably i can access in my script, but it is a big multi-dimensional array, and i can't work out what to target.

here is a scaled-down version of what i can get using get_defined_vars.
the number that i need to access is the 'IDDD' number

$arr = array

(

[this] => template Object

(

[_tpldata] => Array

(

[blogrow] => Array

(

[0] => Array

(

[USER_ID] => 128

[IDDD] => 127

)

[coopster]

Looks like it may be a template class and hopefully that is a public variable. If so, the class structure is building that multi-dimensional array which I tried to replicate in a mini class to demonstrate how to access the array index you want:

class template { 
  public $_tpldata = array( 
    'blogrow' => array( 
      'USER_ID' => 128, 
      'IDDD'  => 127 
    ) 
  ); 
} 
$arr = array('this' => new template()); 
print '<pre>'; 
  print_r($arr); 
  print "\nIDDD is : "; 
  print $arr['this']->_tpldata['blogrow']['IDDD']; 
print '</pre>'; 
exit; 

[londrum]

coopster you are a genius, thanks. i got it working from that.
i was trying stuff like

$arr['this']['_tpldata']['blogrow'][0]['IDDD'];

i better do some reading on that class stuff