Elgg-Lorea-Hydra/actions/admin/plugins/deactivate.php

<?php
/**
 * Deactivate a plugin or plugins.
 *
 * Plugins to be deactivated are passed via $_REQUEST['plugin_guids'] as GUIDs.
 * After deactivating the plugin(s), the views cache and simplecache are invalidated.
 *
 * @uses mixed $_GET['plugin_guids'] The GUIDs of the plugin to deactivate. Can be an array.
 *
 * @package Elgg.Core
 * @subpackage Administration.Plugins
 */

$plugin_guids = get_input('plugin_guids');

if (!is_array($plugin_guids)) {
	$plugin_guids = array($plugin_guids);
}

foreach ($plugin_guids as $guid) {
	$plugin = get_entity($guid);

	if (!($plugin instanceof ElggPlugin)) {
		register_error(elgg_echo('admin:plugins:deactivate:no', array($guid)));
		continue;
	}

	if ($plugin->deactivate()) {
		//system_message(elgg_echo('admin:plugins:deactivate:yes', array($plugin->getManifest()->getName())));
	} else {
		$msg = $plugin->getError();
		$string = ($msg) ? 'admin:plugins:deactivate:no_with_msg' : 'admin:plugins:deactivate:no';
		register_error(elgg_echo($string, array($plugin->getFriendlyName(), $plugin->getError())));
	}
}

// don't regenerate the simplecache because the plugin won't be
// loaded until next run.  Just invalidate and let it regnerate as needed
elgg_flush_caches();

if (count($plugin_guids) == 1) {
	$url = 'admin/plugins';
	$query = (string)parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY);
	if ($query) {
		$url .= "?$query";
	}
	$plugin = get_entity($plugin_guids[0]);
	$id = preg_replace('/[^a-z0-9-]/i', '-', $plugin->getID());
	forward("$url#$id");
} else {
	forward(REFERER);
}