http://forums.netbeans.org/topic21168.html

Sample code to describe/test the problem.

function nestedArray() {
 
  $array_a = array();
  $array_b = array();

  for ($i=0; $i<50; $i++ ) {
    $array_a['fieldA'.$i] = 'A'.$i;
  }

  for ($i=0; $i<150; $i++ ) {
    $array_b['fieldB'.$i] = 'B'.$i;
  }

  // NB "Variables" window displays only 30 elements in $array_a['fieldA0']
  $array_a['fieldA0'] = $array_b;

  // XDebug displays correct 150 elements
  xdebug_var_dump($array_a['fieldA0']);
}