$table1_result = array(
  110 => array('node_id'=>1, 'name'=>'apple'),
  89  => array('node_id'=>2, 'name'=>'orange'
  110 => array('node_id'=>3, 'name'=>'something'),
)

$table2_result = array(
  90 => 'banana',
  59 => 'grapes'
)

//result i needed

array(
  110 => array('node_id'=>1, 'name'=>'apple'),
  110 => array('node_id'=>3, 'name'=>'something'),
  90 => 'banana',
  89  => array('node_id'=>2, 'name'=>'orange'
  59 => 'grapes'
)