Autodetect environment

Here is the code:

 /**
 * Module settings form.
 */
function environment_indicator_settings() {
  $form['environment_indicator_enabled'] = array(
    '#type' => 'radios',
    '#title' => t('Status'),
    '#default_value' => variable_get('environment_indicator_enabled', 1),
    '#options' => array(t('Disabled'), t('Enabled')),
    '#description' => t('Should the Environment Indicator display?'),
  );
  $form['environment_indicator_position'] = array(
    '#type' => 'select',
    '#title' => t('Position'),
    '#description' => t('Choose a position for the environment indicator.'),
    '#options' => array(
      'left' => t('Left'),
      'right' => t('Right'),
    ),
    '#default_value' => variable_get('environment_indicator_position', 'left'),
  );
  $form['environment_indicator_margin'] = array(
    '#type' => 'checkbox',
    '#title' => t('Adjust margin'),
    '#default_value' => variable_get('environment_indicator_margin', 1),
    '#description' => t('If enabled, the site output is shifted to the left or right approximately 30 pixels to display the environment indicator. If disabled, some absolute- or fixed-positioned page elements may be covered by the environment indicator strip.'),
  );
  $form['environment_indicator_textlocal'] = array(
    '#type' => 'textfield',
    '#title' => t('Text to display in LOCAL'),
    '#default_value' => variable_get('environment_indicator_textlocal', 'LOCAL SERVER'),
    '#description' => t('Text to display in the environment indicator. Override this for each environment in settings.php.'),
  );
  $form['environment_indicator_textpublic'] = array(
    '#type' => 'textfield',
    '#title' => t('Text to display in PUBLIC'),
    '#default_value' => variable_get('environment_indicator_textpublic', 'PUBLIC SERVER'),
    '#description' => t('Text to display in the environment indicator. Override this for each environment in settings.php.'),
  );
  $form['environment_indicator_colorlocal'] = array(
    '#type' => 'textfield',
    '#title' => t('Colour in LOCAL'),
    '#default_value' => variable_get('environment_indicator_colorlocal', '#d00c0c'),
    '#description' => t('The colour of the environment indicator. Override this for each environment in settings.php.'),
    '#size' => 7,
  );
  $form['environment_indicator_colorpublic'] = array(
    '#type' => 'textfield',
    '#title' => t('Colour in PUBLIC'),
    '#default_value' => variable_get('environment_indicator_colorpublic', '#009700'),
    '#description' => t('The colour of the environment indicator. Override this for each environment in settings.php.'),
    '#size' => 7,
  );
  return system_settings_form($form);
}

/**
 * Implementation of hook_init().
 */
function environment_indicator_init() {
  if (!user_access('access environment indicator') || environment_indicator_suppress(FALSE)) {
    return;
  }

  global $user, $language;

  $path = drupal_get_path('module', 'environment_indicator');
  drupal_add_css($path .'/environment_indicator.css', 'module', 'all', FALSE);

  // Performance: Defer execution.
  drupal_add_js($path .'/environment_indicator.js', 'module', 'header', TRUE);

  if ($setting = variable_get('environment_indicator_margin', 1)) {
    $settings['margin'] = $setting;
  }
  if ($setting = variable_get('environment_indicator_position', 'left')) {
    $settings['position'] = $setting;
  }
  if ($setting = variable_get('environment_indicator_text', 'ENVIRONMENT INDICATOR')) {
    $settings['text'] = $setting;
  }
  if ($setting = variable_get('environment_indicator_color', '#d00c0c')) {
    $settings['color'] = $setting;
  } 

  // AUTODETECT LOCAL machine 
  if (isset($_SERVER['SERVER_ADDR']) || isset($_SERVER['LOCAL_ADDR'])) { 
    $addr = isset($_SERVER['SERVER_ADDR']) ? $_SERVER['SERVER_ADDR'] : $_SERVER['LOCAL_ADDR'];
    $addr_e = explode('.', $addr);
    $addr_e[0] == '127' ? $env = "LOCAL" : $env = "PUBLIC";
  }

  if ($env=='LOCAL') {
    $settings['text'] = variable_get('environment_indicator_textlocal', 'LOCAL SERVER');
    $settings['color'] = variable_get('environment_indicator_colorlocal', '#d00c0c');
  }
  elseif ($env=='PUBLIC'){
    $settings['text'] = variable_get('environment_indicator_textpublic', 'PUBLIC SERVER');
    $settings['color'] = variable_get('environment_indicator_colorpublic', '#009700');
  }
 
  drupal_add_js(array('environment_indicator' => $settings), 'setting');
}

Please, can you correct misspell in title? Autodetect enviriment > Autodetect environment
Thx

OK I get your point. Never mind. Maybe someone will find this useful.
For me it is good because I use only local and public environment. And I want to have only one settings.php.

Thanks

How can you only have one settings.php if you have two servers?

Because I have same db name and password on both. I is then easier to move between local and public. I just copy everything and don't have to remember not to overwrite settings.php

To the submitting: ok ;-)