<?php

/**

 * @file

 * Install, update and uninstall functions for the php module.

 */

/**

 * Implements hook_enable().

 */

function php_enable() {

  $format_exists = (bool) db_query_range('SELECT 1 FROM {filter_format} WHERE name = :name', 0, 1, array(':name' => 'PHP code'))->fetchField();

  // Add a PHP code text format, if it does not exist. Do this only for the

  // first install (or if the format has been manually deleted) as there is no

  // reliable method to identify the format in an uninstall hook or in

  // subsequent clean installs.

  if (!$format_exists) {

    $php_format = array(

      'format' => 'php_code',

      'name' => 'PHP code',

      // 'Plain text' format is installed with a weight of 10 by default. Use a

      // higher weight here to ensure that this format will not be the default

      // format for anyone.

      'weight' => 11,

      'filters' => array(

        // Enable the PHP evaluator filter.

        'php_code' => array(

          'weight' => 0,

          'status' => 1,

        ),

      ),

    );

    $php_format = (object) $php_format;

    filter_format_save($php_format);

    drupal_set_message(t('A <a href="@php-code">PHP code</a> text format has been created.', array('@php-code' => url('admin/config/content/formats/' . $php_format->format))));

  }

}

/**

 * Implements hook_disable().

 */

function php_disable() {

  drupal_set_message(t('The PHP module has been disabled. Any existing content that was using the PHP filter will now be visible in plain text. This might pose a security risk by exposing sensitive information, if any, used in the PHP code.'));

}