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Server: Apache
System: Linux sg241.singhost.net 2.6.32-896.16.1.lve1.4.51.el6.x86_64 #1 SMP Wed Jan 17 13:19:23 EST 2018 x86_64
User: honghock (909)
PHP: 8.0.30
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File: /home/honghock/public_html/old/wp-admin/network/update.php
<?php
/**
 * Update/Install Plugin/Theme network administration panel.
 *
 * @package WordPress
 * @subpackage Multisite
 * @since 3.1.0
 */

if ( isset( $_GET['action'] ) && in_array( $_GET['action'], array( 'update-selected', 'activate-plugin', 'update-selected-themes' ), true ) ) {
	define( 'IFRAME_REQUEST', true );
}

/** Load WordPress Administration Bootstrap */
require_once __DIR__ . '/admin.php';

require ABSPATH . 'wp-admin/update.php';