function farm_area_calculate_area_multiple in farmOS 7

Calculate the area of multiple farm areas.

Parameters

array $area_ids: An array of area IDs.

$format: Boolean indicating whether or not the returned value should be formatted based on the unit of measurement

Return value

string Returns the calculated are of the areas as a string, in meters squared by default. If $format is TRUE it will be converted and formatted using farm_area_format_calculated_area().

See also

farm_area_format_calculated_area()

1 call to farm_area_calculate_area_multiple()

farm_area_calculate_area_type in modules/farm/farm_area/farm_area.module

Calculate the area of all areas of a particular type.

File

modules/farm/farm_area/farm_area.module, line 381

Code

function farm_area_calculate_area_multiple($area_ids, $format = FALSE) {

  // If there are no area IDs, bail.
  if (empty($area_ids)) {
    return '';
  }

  // Set BCMath scale.
  farm_map_set_bcscale();

  // Add up the total area.
  $total_area = '';
  foreach ($area_ids as $area_id) {
    $area_area = farm_area_calculate_area($area_id);
    if (function_exists('bcadd')) {
      $total_area = bcadd($total_area, $area_area);
    }
    else {
      if (empty($total_area)) {
        $total_area = 0;
      }
      $total_area += floatval($area_area);
    }
  }

  // Reset BCMath scale.
  farm_map_reset_bcscale();

  // Return the area as a string (optionally formatted using the default
  // system of measure).
  if (!empty($format)) {
    return farm_area_format_calculated_area($total_area);
  }
  return $total_area;
}