[Learn] How to create a Content Type programmatically with custom fields.

If you want to learn how to create a custom content type with custom fields.

  $type = node_type_load('content_type_name');
  if (!$type) {
    $type = array(
      'type' => 'content_type_name',
      'name' => t('Content Type Human Name'),
      'base' => 'node_content',
      'description' => t(
        "Description of <em>Content Type Human Name</em> goes here."),
      'custom' => 1,
      'modified' => 1,
      'locked' => 0,
    );

    $type = node_type_set_defaults($type);

    // Create a custom Text Field
    $field = array(
      'field_name' => 'my_text_field_name',
      'type' => 'text',
      'entity_types' => array('node'),
    );
    $field = field_create_field($field);
    $instance = array(
      'field_name' => 'my_text_field_name',
      'entity_type' => 'node',
      'bundle' => 'content_type_name',
      'label' => t('Custom Field Human Name'),
      'widget' => array('type' => 'text_textfield'),
    );
    $instance = field_create_instance($instance);
    // Create URL Field

    node_type_save($type);
    node_add_body_field($type);
  }