<?php
// If uninstall not called from WordPress, then exit.
if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
	exit;
}

/*
 * Remove configuration variables
 */
function smart_excerpt_remove_configuration_variables() {
	delete_option ( 'minLen' );
	delete_option ( 'maxLen' );
	delete_option ( 'useTitle' );
	delete_option ( 'useTags' );
	delete_option ( 'featured' );
	delete_option ( 'more' );
	delete_option ( 'keepHtmlTags' );
	delete_option ( 'numSentences' );
	delete_option ( 'skipManual' );
} // End smart_excerpt_remove_configuration_variables
function smart_excerpt_deactivePlugin() {
	if (function_exists ( 'is_multisite' ) && is_multisite ()) {
		$old_blog = get_current_blog_id();
		// Get all blog ids using WordPress function
		$sites = get_sites(array('number' => 0));
		foreach ( $sites as $site ) {
			switch_to_blog ( $site->blog_id );
			smart_excerpt_remove_configuration_variables ();
		}
		switch_to_blog ( $old_blog );
		return;
	}
	smart_excerpt_remove_configuration_variables ();
} // End smart_excerpt_deactivePlugin
smart_excerpt_deactivePlugin();
?>