settings.class.php

<?php
/**
 * @package WordPress
 * @subpackage Settings
 */

/*

Instantiate it with a key, like $settings = new Settings('myplugin_settings');

Then do things like, set a setting:
$settings->set('default_language', 'english');

Which will overwrite a setting if it's already set.

Or get a setting:
$settings->get('default_language');

Which will return false if it's not set.

Once all your settings have been manipulated, the save() method will write it to the db.
$settings->save();

A simple reset method will nullify everything. Useful for testing.

This is a LOT BETTER than what a lot of devs do, creating a new row in the settings db for each and every entry... which is retarded.

At the end of a file is an example of subclassing it to not need to enter a key all the time, useful on a big project where you want to get access to your settings quickly. Of course a good practice is to keep one global setting instance, but sometimes that doesn't always work.

*/

class Settings {
    
    private $settings;
    public $key;
    
    function __construct($key = 'default_settings') {
        if (!isset($this->key)) $this->key = $key;

        $this->settings = array();
        $this->load();
    }
    
    function set($key, $value = null) {
        $this->settings[$key] = $value;
    }
    
    function get($key) {
        if (isset($this->settings[$key]) and $this->settings[$key] != '') {
            return $this->settings[$key];
        } else {
            return false;
        }
    }
    
    function load() {
        $loaded = maybe_unserialize(get_option($this->key));

        if (!empty($loaded) && is_array($loaded)) {
            foreach ($loaded as $setting => $value)
                $this->settings[$setting] = $value;
        }
    }
    
    function save() {
        update_option($this->key, $this->settings);
    }
    
    function reset() {
        update_option($this->key, NULL);
    }
}

class ArbeskoSettings extends Settings {
    function __construct() {
        $this->key = 'arbesko_settings';
        parent::__construct();
    }
}

?>