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<?php if ( ! defined( 'ABSPATH' ) ) exit;
/*************************************************************/
// This class is not intended to be extended directly,
// but rather should be used as a boilerplate for an
// extension plugin base file.
// This file, if included or required, will immediately exit.
// TODO: Remove this header before use.
exit;
/*************************************************************/
/**
* Class NF_Abstracts_Extension
*/
final class NF_Abstracts_Extension
{
/**
* @since 3.0
*/
const VERSION = '';
/**
* @var NF_Abstracts_Extension
* @since 3.0
*/
private static $instance;
/**
* Plugin Directory
*
* @since 3.0
* @var string $dir
*/
public static $dir = '';
/**
* Plugin URL
*
* @since 3.0
* @var string $url
*/
public static $url = '';
/**
* Form Fields
*
* @since 3.0
* @var array
*/
public $fields = array();
/**
* Form Actions
*
* @since 3.0
* @var array
*/
public $actions = array();
protected $autoloader_prefix = '';
/**
* Main Plugin Instance
*
* Insures that only one instance of a plugin class exists in memory at any one
* time. Also prevents needing to define globals all over the place.
*
* @since 3.0
* @static
* @staticvar array $instance
* @return Plugin Highlander Instance
*/
public static function instance()
{
if (!isset(self::$instance) && !(self::$instance instanceof NF_Abstracts_Extension)) {
self::$instance = new NF_Abstracts_Extension();
self::$dir = plugin_dir_path(__FILE__);
self::$url = plugin_dir_url(__FILE__);
/*
* Register our autoloader
*/
spl_autoload_register(array(self::$instance, 'autoloader'));
}
}
public function autoloader( $class_name )
{
if( class_exists( $class_name ) ) return;
if( ! $this->autoloader_prefix ) {
$class = explode( '_', __CLASS__ );
$this->autoloader_prefix = $class[ 0 ];
}
if ( false !== strpos( $class_name, $this->autoloader_prefix ) ) {
$class_name = str_replace($this->autoloader_prefix, '', $class_name);
$classes_dir = realpath(plugin_dir_path(__FILE__)) . DIRECTORY_SEPARATOR . 'includes' . DIRECTORY_SEPARATOR;
$class_file = str_replace('_', DIRECTORY_SEPARATOR, $class_name) . '.php';
if (file_exists($classes_dir . $class_file)) {
require_once $classes_dir . $class_file;
}
}
}
}
/**
* The main function responsible for returning The Highlander Plugin
* Instance to functions everywhere.
*
* Use this function like you would a global variable, except without needing
* to declare the global.
*
* Example: <?php $nf = NF_Abstracts_Extension(); ?>
*
* @since 3.0
* @return Plugin Highlander Instance
*/
function NF_Abstracts_Extension()
{
return NF_Abstracts_Extension::instance();
}
NF_Abstracts_Extension();