<?php

$sql = array();

$sql[] = 'DROP TABLE `'._DB_PREFIX_.'phstickers`';
$sql[] = 'DROP TABLE `'._DB_PREFIX_.'phstickers_lang`';
$sql[] = 'DROP TABLE `'._DB_PREFIX_.'phstickers_product`';
$sql[] = 'DROP TABLE `'._DB_PREFIX_.'phstickers_category`';

foreach ($sql as $query) {
    if (Db::getInstance()->execute($query) === false) {
        echo $query;
        return false;
    }
}
return true;