/**
 * A `print_r` or `var_dump` replacement that expands the variable into valid PHP code.
 * @uses   var_export
 * @param  array|object  $array_or_object $variable to expand/view
 * @param  boolean       $echo            Whether to return or display the data
 * @return string                         Variable representation that is valid PHP code.
 */
function expand_code( $array_or_object, $echo = true ) {
  // This is the real magic
  $expanded = var_export( $array_or_object, true );
  // This makes object representations more reliable
  $expanded = str_ireplace( 'stdClass::__set_state', '(object) ', $expanded );
  // Assign output to a variable
  $expanded = '<xmp>$expanded = '. $expanded .'</xmp>';

  if ( $echo ) echo $expanded;

  return $expanded;
}