php sql injection cheat sheet

PHP tutorials Prevent SQL injection code */ function Inject_check ($sql _str) {//Prevent injection $check = eregi (' select|insert|update|delete| ' | /*|*|.. /|. /|union|into|load_file|outfile ', $sql _str); if ($check)

Of course, addslashes is also not useless, it is used for single-byte string processing, multibyte characters or use mysql_real_escape_string bar. Open MAGIC_QUOTES_GPC to prevent SQL injection There is a setting in php.ini: MAGIC_QUOTES_GPC = OffThis default is turned off, and if it is turned on, it will automatically convert the user to the SQL query.For exam

PHP and SQL injection attacks [2] PHP and SQL injection attacks [2] Magic Quotes As mentioned above, SQL injection mainly submits insecure

This article mainly introduces the PHP implementation of form submission data validation processing function, can achieve anti-SQL injection and XSS attacks, including PHP character processing, encoding conversion related operation skills, the need for friends can refer to the next In this paper, we describe the valid

with the PHP addslashes function can be.Full anti-injection:functionInject_check ($sql _str) { return Eregi(' select|insert|update|delete|\ ' |\/\*|\*|\.\.\/|\.\/|union|into|load_file|outfile ',$sql _str);//to filter}functionVERIFY_ID ($id=NULL) { if(!$id) {Exit(' No Submit parameters! ‘); }//is null-judged ElseIf(Inject_check ($id)) {Exit(' The arguments submit

attacker to submitThe returned page displays the cookie information on the current page.We can use some message boards (which are not filtered in advance). Then, when the Administrator reviews and modifies the information, the COOKIE information is stolen and sent to the attacker's space or mailbox .. Attackers can use the cookie modifier to perform login intrusion ..Of course, there are also many solutions .. The following describes the most common method.Solution 1: escape using javascriptSol

This article illustrates a simple way to prevent SQL injection in PHP. Share to everyone for your reference, specific as follows: SQL injection is generally due to the irregular syntax, the problem appears on the SQL statement, a

Php prevents SQL injection function usage Use the addslashes function in php to prevent SQL injection.Although many php programmers in China are still relying on addslashes to prevent

In this series of articles, we will explore comprehensively how to block SQL injection attacks in the PHP development environment and give a specific development example. First, the introduction PHP is a powerful but fairly easy to learn server-side scripting language that even inexperienced programmers can use to cr

Several methods to prevent SQL injection in php /** * SQL Injection Prevention * @ Author: test@jbxue.com **/ /** * Reject SQL inject */ If (! Function_exists (qu

Php SQL injection prevention measures. Recently, I am still a little upset when using the framework. I don't know if the framework designer has taken into account the SQL-Injection issue. I don't need to perform necessary filtering on the top layer, as a result, I went to St

Summary:Based on the Php+mysql platform of SQL injection and defense of the actual operation, to provide more detailed procedures on the Ubuntu platform, convenient practiced hand.The platform used:Ubuntu 12.04,php 5.3.10, MySQL Ver 14.14, apache/2.2.22Steps:1. Install Apache,mysql on Ubuntu, the specific process of se

Recently, I am working on a theme voting website. The customer understands some program things. There are special requirements for filtering some characters to prevent SQL injection. No special research has been conducted in this regard. Haha, I have carried forward a new post. Take the SQL anti-injection FUNCTION OF T

PHP implements the function of verifying and Processing Form submission data [preventing SQL injection and XSS attacks, etc.] And sqlxss This example describes how PHP can verify and process data submitted by forms. We will share this with you for your reference. The details are as follows: XSS attack protection code:

This article introduces the best solution to prevent SQL injection in php. If you want to insert a query directly into an SQL statement, the application will be vulnerable to SQL injection. for example: The code is as follows: $

PHP anti-SQL injection attack collection does not have much filtering, mainly for the combination of PHP and MySQL. General anti-injection, as long as the use of PHP addslashes function is possible. Here is a copy of the code: