ยินดีต้อนรับสู่บทเรียนออนไลน์ Mr. (94102)
(select(0)from(select(sleep(8.11)))v)/) OR (SELECT 1943 FROM(SELECT COUNT(*),CONCAT(0x71717a6b71,(SELECT (ELT(1943=1943,1))),0x717a7a6a71,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- OIfb