functions.

functions.php

<?php

ob_settings_config {
var $group = "enapupe"; // defines setting groups (should be bespoke to your settings)
var $page_name = "enapupe"; // defines which pages settings will appear on. Either bespoke or media/discussion/reading etc
 
var $title = "Detrick";  // page title that is displayed
var $nav_title = "Detrick"; // how page is listed on left-hand Settings panel
 
var $sections = array(
    'main' => array(
        'title' => "Geral",
        'fields' => array (
//           'telefone_ddd' => array(
//               'label' => "DDD Telefone"
//           ),
//          'telefone' => array(
//               'label' => "Telefone"
//           ),
//           'logradouro' => array(
//               'label' => "Logradouro"
//           ),
//           'cidade' => array(
//               'label' => "Cidade - Estado - País"
//           ),
//           'cep' => array(
//               'label' => "CEP"
//           ),
          'social_facebook' => array (
              'label' => "Página do facebook",
              'description' => "http://",
              'length' => "200"
              ),
          'social_twitter' => array (
              'label' => "URL do Twitter",
              'description' => "http://",
              'length' => "200"
              ),
          'social_instagram' => array (
              'label' => "URL do Instagram",
              'description' => "http://",
              'length' => "200"
              ),
          'analytics' => array (
              'label' => "Código ID Analytics",
              'description' => "UA-XXXXXXXXXXX",
              'length' => "20"
              ),
          'email_contato' => array (
              'label' => "E-mail destino do formulário do contato",
              'description' => "xxx@bbb.aa",
              'length' => "200"
              ),
            
          'coordenada_mapa' => array (
              'label' => "Coordenadas do centro do mapa do contato",
              'description' => "lat,long",
              'length' => "30"
              ),
          'coordenada_marcador' => array (
              'label' => "Coordenadas do marcador do endereço",
              'description' => "lat,long",
              'length' => "30"
              ),
          'zoom_mapa' => array (
              'label' => "Zoom inicial mapa do contato",
              'length' => "2"
              ),
            
          )
        )
    );
  
var $dropdown_options = array ('dd_colour' => array (
        '#f00' => "Red",
        '#0f0' => "Green",
        '#00f' => "Blue",
        '#fff' => "White",
        '#000' => "Black",
        '#aaa' => "Gray") );
 
//  end class
};
    
class ob_settings {

    function ob_settings($settings_class) {
        global $ob_settings;
        $ob_settings = get_class_vars($settings_class);

        if (function_exists('add_action')) :
            add_action('admin_init', array(&$this, 'plugin_admin_init'));
            add_action('admin_menu', array(&$this, 'plugin_admin_add_page'));
        endif;
    }

    function plugin_admin_add_page() {
        global $ob_settings;
        add_options_page($ob_settings['title'], $ob_settings['nav_title'], 'publish_posts', 'enapupe', array(&$this, 'plugin_options_page'));
    }

    function plugin_options_page() {
        global $ob_settings;
        printf('</pre>
<div>
<h2>%s</h2>
%s
<form action="options.php" method="post">', $ob_settings['title'], $ob_settings['intro_text']);
        settings_fields($ob_settings['group']);
        do_settings_sections($ob_settings['page_name']);
        printf('<input type="submit" name="Submit" value="%s" /></form></div>
<pre>
', __('Save Changes'));
    }

    function plugin_admin_init() {
        global $ob_settings;
        foreach ($ob_settings["sections"] AS $section_key => $section_value) :
            add_settings_section($section_key, $section_value['title'], array(&$this, 'plugin_section_text'), $ob_settings['page_name'], $section_value);
            foreach ($section_value['fields'] AS $field_key => $field_value) :
                $function = (!empty($field_value['dropdown'])) ? array(&$this, 'plugin_setting_dropdown') : array(&$this, 'plugin_setting_string');
                $function = (!empty($field_value['function'])) ? $field_value['function'] : $function;
                $callback = (!empty($field_value['callback'])) ? $field_value['callback'] : NULL;
                add_settings_field($ob_settings['group'] . '_' . $field_key, $field_value['label'], $function, $ob_settings['page_name'], $section_key, array_merge($field_value, array('name' => $ob_settings['group'] . '_' . $field_key)));
                register_setting($ob_settings['group'], $ob_settings['group'] . '_' . $field_key, $callback);
            endforeach;
        endforeach;
    }

    function plugin_section_text($value = NULL) {
        global $ob_settings;
        printf("
%s
    
", $ob_settings['sections'][$value['id']]['description']);
    }

    function plugin_setting_string($value = NULL) {
        $options = get_option($value['name']);
        $default_value = (!empty($value['default_value'])) ? $value['default_value'] : NULL;
        printf('<input id="%s" type="text" name="%1$s[text_string]" value="%2$s" size="40" /> %3$s%4$s', $value['name'], (!empty($options['text_string'])) ? $options['text_string'] : $default_value, (!empty($value['suffix'])) ? $value['suffix'] : NULL, (!empty($value['description'])) ? sprintf("<em>%s</em>", $value['description']) : NULL);
    }

    function plugin_setting_dropdown($value = NULL) {
        global $ob_settings;
        $options = get_option($value['name']);
        $default_value = (!empty($value['default_value'])) ? $value['default_value'] : NULL;
        $current_value = ($options['text_string']) ? $options['text_string'] : $default_value;
        $chooseFrom = "";
        $choices = $ob_settings['dropdown_options'][$value['dropdown']];
        foreach ($choices AS $key => $option) :
            $chooseFrom .= sprintf('<option value="%s" %s>%s</option>', $key, ($current_value == $key ) ? ' selected="selected"' : NULL, $option);
        endforeach;
        printf('
<select id="%s" name="%1$s[text_string]">%2$s</select>
%3$s', $value['name'], $chooseFrom, (!empty($value['description'])) ? sprintf("<em>%s</em>", $value['description']) : NULL);
    }

//end class
}

$ob_settings_init = new ob_settings('ob_settings_config');