Drupal: Set content in a region programmatically

<?php/** * @file *  * Provide an administrator interface for adding SEO text & images for specific page *  * DrupalD <DrupalD@twitter> *//** * Implementation of hook_menu *  * DrupalD <DrupalD@twitter> */function seo_util_menu() {    $item['admin/config/development/seo-util'] = array(        'type' => MENU_NORMAL_ITEM,        'title' => t('SEO text'),      'page callback' => 'seo_util_overview',      'access arguments' => array('Administer site configuration')    );        $item['admin/config/development/seo-util/manage'] = array(        'type' => MENU_DEFAULT_LOCAL_TASK,        'title' => t('Manage text'),      'page callback' => 'seo_util_overview',      'access arguments' => array('Administer site configuration'),      'weight' => -10,    );                $item['admin/config/development/seo-util/config'] = array(    'type' => MENU_LOCAL_TASK,    'title' => t('Settings'),    'page callback' => 'drupal_get_form',    'page arguments' => array('seo_util_config'),    'access arguments' => array('Administer site configuration'),      'weight' => -7,  );        return $item;}/** * seo_util_overview *  * Display SEO text overview *  * DrupalD <DrupalD@twitter> */function seo_util_overview() {    drupal_add_css(drupal_get_path('module', 'seo_util') .'/seo_util.css');    $am__overview = drupal_get_form('seo_util_global_text');    $output = '<div class="global">'. drupal_render($am__overview);  $output .= '<div class="summary">'. _get_config_summary() .'</div>';      return $output;    }/** * seo_util_global_text *  * DrupalD <DrupalD@twitter> */function seo_util_global_text() {    $form['global_text'] = array(    '#type' => 'textarea',    '#title' => t('Global text'),    '#description' => t('Set the text for all pages. This will be overwritten       by the individual page text. You can use PHP code within @php.       You will need to enable PHP filter module to do this.',       array('@php' => 'lt;?php ?gt;')),    '#default_value' => variable_get('global_text', ''),    '#weight' => -50,  );    return system_settings_form($form);}/** * seo_util_config *  * Select the vocabulary for which text to be added *  * DrupalD <DrupalD@twitter> */function seo_util_config() {    $am__vocabulary = taxonomy_vocabulary_get_names();    $am__vocab = array();    $am__vocab[0] = t('-- Select --');    foreach ($am__vocabulary as $vocabulary => $ob) {        $am__vocab[$ob->vid] = $ob->name;     }        $form['seo_util_province_vocabulary'] = array(      '#type' => 'select',      '#title' => t('Province Vocabulary'),      '#description' => t('Select a vocabulary which provides a list of       provice & cities'),      '#options' => $am__vocab,      '#required' => TRUE,      '#default_value' => variable_get('seo_util_province_vocabulary',00),      '#weight' => -10,    );        $form['seo_util_course_vocabulary'] = array(      '#type' => 'select',      '#title' => t('Course Vocabulary'),      '#description' => t('Select a vocabulary which provides a list of courses'),      '#options' => $am__vocab,      '#required' => TRUE,      '#default_value' => variable_get('seo_util_course_vocabulary',00),      '#weight' => -9,    );        $form['seo_util_theme_regions'] = array(    '#type' => 'select',    '#title' => t('Theme regions'),      '#description' => t('Select the region where you want to display the       text for each of the pages/path') .'<br />'.       t('The regions are listed from your default theme. Your default       theme is @theme.', array('@theme' => variable_get('theme_default', ''))),    '#options' =>   system_region_list(variable_get('theme_default', '')),    '#required' => TRUE,    '#default_value' => variable_get('seo_util_theme_regions', ''),    );        return system_settings_form($form);}/** * Implementation of hook_page_build *  * @param $page * DrupalD <DrupalD@twitter> */function seo_util_page_build(&$page) {    $ss__global_text = variable_get('global_text', '');    $ss__region = variable_get('seo_util_theme_regions', '');    $page[$ss__region]['text']['#markup'] = php_eval($ss__global_text);}/** * _get_config_summary *  * DrupalD <DrupalD@twitter> */function _get_config_summary() {    $output = '<h2>'. t('Configuration summary') .'</h2>';        $output .= '<ul>';      $output .= '<li>'. t('Province/City taxonomy')     .': <strong>'. _get_vocabulary(variable_get('seo_util_province_vocabulary', '--')) .'</strong></li>';      $output .= '<li>'. t('Course taxonomy')     .': <strong>'. _get_vocabulary(variable_get('seo_util_course_vocabulary', '--')) .'</strong></li>';      $output .= '<li>'. t('Default theme region') .': <strong>'.     variable_get('seo_util_theme_regions', '--') .'</strong></li>';    $output .= '<li>'. t('Default theme') .': <strong>'.     variable_get('theme_default', '--') .'</strong></li>';    $output .= '</ul>';      $output .= t('You can change above configuration from !config page',     array('!config' => l(t('Settings'), 'admin/config/development/seo-util/config')));    return $output;}/** * _get_vocabulary *  * Enter description here ... * @param unknown_type $sn__vid * DrupalD <DrupalD@twitter> */function _get_vocabulary($sn__vid) {    $names = db_query('SELECT name FROM {taxonomy_vocabulary} WHERE vid = :vid',     array(':vid' => $sn__vid))->fetchAllAssoc('name');  $names = array_values($names);    return $names[0]->name;  }?>