#drupal Custom Token. Drupal 7

Custom Token

<?php

/**
* @file
* Creates a custom token. In this case this token was sent to Google Analytics.
*/

function example_token_info() {
  $info['tokens']['site']['active_alert'] = array(
    'name' => t('Active Alert'),
    'description' => t('Status of Alert.'),
  );
  return $info;
}

function example_tokens_alter(array &$replacements, array $context) {
  $tmp = variable_get('alert_status', '0');
  $active_alert = !empty($tmp) ? 'TRUE' : 'FALSE';
  $replacements['[site:active_alert]'] = $active_alert;
}