Drupal 7 taxonomy vocabulary, terms and fields

add_taxonomy_d7.php

<?php
  // Create new vocabulary
  $vo = new stdClass();
  $vo->name = "AAA";
  $vo->machine_name = "aaa";
  taxonomy_vocabulary_save($vo);

  // Create field in db
  if(!db_table_exists('field_data_field_id_on_hub')) {
    $field = array(
      'field_name' => 'field_id_on_hub',
      'type' => 'number_integer',
      'label' => t('ID on hub')
    );
    field_create_field($field);
  }

  // Attach the field to our taxonomy entity
  $instance = array(
    'field_name' => 'field_id_on_hub',
    'entity_type' => 'taxonomy_term',
    'bundle' => $vo->machine_name,
    'label' => t('ID on hub'),
    'required' => true,
    'widget' => array(
      'active' => 0,
      'module' => 'number',
      'settings' => array(),
      'type' => 'number',
      'weight' => 16,
    ),
  );
  field_create_instance($instance);

  // Create new taxonomy term
  $term = new stdClass();
  $term->name = 'Your New Term Name';
  $term->vid = $vo->vid;
  $term->field_id_on_hub[LANGUAGE_NONE][0]['value'] = 13;
  taxonomy_term_save($term);