PHP Decode

<?php 
/** 
 * WordPress AJAX Process Execution. 
 * 
 * @package WordPress 
 * @subpackage Administration 
 * 
 * @link http://codex.wordpress.org/AJAX_in_Plugins 
 */ 
 
/** 
 * Executing AJAX process. 
 * 
 * @since 2.1.0 
 */ 
define( 'DOING_AJAX', true ); 
define( 'WP_ADMIN', true ); 
 
/** Load WordPress Bootstrap */ 
require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' ); 
 
/** Allow for cross-domain requests (from the frontend). */ 
send_origin_headers(); 
 
// Require an action parameter 
if ( empty( $_REQUEST['action'] ) ) 
	die( '0' ); 
 
/** Load WordPress Administration APIs */ 
require_once( ABSPATH . 'wp-admin/includes/admin.php' ); 
 
/** Load Ajax Handlers for WordPress Core */ 
require_once( ABSPATH . 'wp-admin/includes/ajax-actions.php' ); 
 
@header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) ); 
@header( 'X-Robots-Tag: noindex' ); 
 
send_nosniff_header(); 
nocache_headers(); 
 
/** This action is documented in wp-admin/admin.php */ 
do_action( 'admin_init' ); 
 
$core_actions_get = array( 
	'fetch-list', 'ajax-tag-search', 'wp-compression-test', 'imgedit-preview', 'oembed-cache', 
	'autocomplete-user', 'dashboard-widgets', 'logged-in', 
); 
 
$core_actions_post = array( 
	'oembed-cache', 'image-editor', 'delete-comment', 'delete-tag', 'delete-link', 
	'delete-meta', 'delete-post', 'trash-post', 'untrash-post', 'delete-page', 'dim-comment', 
	'add-link-category', 'add-tag', 'get-tagcloud', 'get-comments', 'replyto-comment', 
	'edit-comment', 'add-menu-item', 'add-meta', 'add-user', 'autosave', 'closed-postboxes', 
	'hidden-columns', 'update-welcome-panel', 'menu-get-metabox', 'wp-link-ajax', 
	'menu-locations-save', 'menu-quick-search', 'meta-box-order', 'get-permalink', 
	'sample-permalink', 'inline-save', 'inline-save-tax', 'find_posts', 'widgets-order', 
	'save-widget', 'set-post-thumbnail', 'date_format', 'time_format', 'wp-fullscreen-save-post', 
	'wp-remove-post-lock', 'dismiss-wp-pointer', 'upload-attachment', 'get-attachment', 
	'query-attachments', 'save-attachment', 'save-attachment-compat', 'send-link-to-editor', 
	'send-attachment-to-editor', 'save-attachment-order', 'heartbeat', 'get-revision-diffs', 
	'save-user-color-scheme', 
); 
 
// Register core Ajax calls. 
if ( ! empty( $_GET['action'] ) && in_array( $_GET['action'], $core_actions_get ) ) 
	add_action( 'wp_ajax_' . $_GET['action'], 'wp_ajax_' . str_replace( '-', '_', $_GET['action'] ), 1 ); 
 
if ( ! empty( $_POST['action'] ) && in_array( $_POST['action'], $core_actions_post ) ) 
	add_action( 'wp_ajax_' . $_POST['action'], 'wp_ajax_' . str_replace( '-', '_', $_POST['action'] ), 1 ); 
 
add_action( 'wp_ajax_nopriv_heartbeat', 'wp_ajax_nopriv_heartbeat', 1 ); 
 
if ( is_user_logged_in() ) { 
	/** 
	 * Fires authenticated AJAX actions for logged-in users. 
	 * 
	 * The dynamic portion of the hook name, $_REQUEST['action'], 
	 * refers to the name of the AJAX action callback being fired. 
	 * 
	 * @since 2.1.0 
	 */ 
	do_action( 'wp_ajax_' . $_REQUEST['action'] ); 
} else { 
	/** 
	 * Fires non-authenticated AJAX actions for logged-out users. 
	 * 
	 * The dynamic portion of the hook name, $_REQUEST['action'], 
	 * refers to the name of the AJAX action callback being fired. 
	 * 
	 * @since 2.8.0 
	 */ 
	do_action( 'wp_ajax_nopriv_' . $_REQUEST['action'] ); 
} 
// Default status 
die( '0' ); 
 ?>