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What are the two modes of UPDATE injection?

2025-01-17 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >

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Today, I will talk to you about what are the two modes of UPDATE injection, which may not be well understood by many people. In order to make you understand better, the editor has summarized the following contents for you. I hope you can get something according to this article.

one。 Test environment:

OS: Windowsxp sp2

Php: php 4.3.10 (

Mysql 4.1.9

Apache 1.3.33

two。 Test the database structure:

-start

-- Database: `test`

--

-

--

-- structure of the table `userinfo`

--

CREATE TABLE `userinfo` (

`groudid`varchar (12) NOT NULL default'1'

`user`varchar (12) NOT NULL default 'heige'

`pass` varchar (122) NOT NULL default '123456'

) ENGINE=MyISAM DEFAULT CHARSET=latin1

--

-- Export the data in the table `userinfo`

--

INSERT INTO `userinfo` VALUES ('2clients,' heige', '123456')

-end-

three。 Test mode:

1. The variable does not have a''or "" [MOD1]

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