Returns out Array of Hidden Inputs when received in the $_POST. This function is used in conjunction with the Placester Wordpress Real Estate IDX Plugin. It's purpose is to allow the user to pass an array through the $_POST variable - as opposed to straight AJAX.

Pls: Render $_POST Arrays

function render_post_array ($group = 'location', $key = 'postal') {
  if ($_POST['location'] && is_array($_POST['location']['postal'])) {
    $output = '';
    foreach ($_POST[$group][$key] as $value) {
      $output .= '<input type="hidden" name="'.$group.'['.$key.'][]" value="' . $value .'" >';
    }
    $output .= '<input type="hidden" name="'.$group.'['.$key.'][]" value="in" >';
  }
  return $output; 
}