#drupal Sample plugin for Feeds Importer module.Drupal 7

Feeds Importer Plugin

<?php

/**
 * @file
 * Creates a plugin that in this example was used in the Feeds Importer module. Plugin can execute PHP against values passed to it.
 */
$plugin = array(
  'form' => 'MODULE_NAME_PLUGIN_NAME_form',
  // Optional validation callback.
  'validate' => 'MODULE_NAME_PLUGIN_NAME__validate',
  'callback' => 'MODULE_NAME_PLUGIN_NAME__callback',
  'name' => 'NAME',
  'multi' => 'loop',
  'category' => 'Other',
);

function MODULE_NAME_PLUGIN_NAME_form($importer, $element_key, $settings) {
  $form = array();
  $form['help']['#value'] = t('HElP');
  return $form;
}

function MODULE_NAME_PLUGIN_NAME_validate(&$settings) {
  // Validate $settings.
}

function MODULE_NAME_PLUGIN_NAME_callback($source, $item_key, $element_key, &$field, $settings) {
  // Do something to $field
}