Home php教程 php手册 PHP通用防注入安全代码

PHP通用防注入安全代码

Jun 21, 2016 am 09:06 AM
foreach script

安全|防注入

简述:

/*************************

说明:

判断传递的变量中是否含有非法字符

如$_POST、$_GET

功能:

防注入

**************************/


//要过滤的非法字符

$ArrFiltrate=array("'",";","union");

//出错后要跳转的url,不填则默认前一页

$StrGoUrl="";

//是否存在数组中的值

function FunStringExist($StrFiltrate,$ArrFiltrate){

foreach ($ArrFiltrate as $key=>$value){

if (eregi($value,$StrFiltrate)){

return true;

}

}

return false;

}

//合并$_POST 和 $_GET

if(function_exists(array_merge)){

$ArrPostAndGet=array_merge($HTTP_POST_VARS,$HTTP_GET_VARS);

}else{

foreach($HTTP_POST_VARS as $key=>$value){

$ArrPostAndGet[]=$value;

}

foreach($HTTP_GET_VARS as $key=>$value){

$ArrPostAndGet[]=$value;

}

}

//验证开始

foreach($ArrPostAndGet as $key=>$value){

if (FunStringExist($value,$ArrFiltrate)){

echo "";

if (empty($StrGoUrl)){

echo "";

}else{

echo "";

}

exit;

}

}

?>

保存为checkpostandget.php

然后在每个php文件前加include(“checkpostandget.php“);即可



Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1670
14
PHP Tutorial
1274
29
C# Tutorial
1256
24
What is the difference between using foreach and iterator to delete elements when traversing Java ArrayList? What is the difference between using foreach and iterator to delete elements when traversing Java ArrayList? Apr 27, 2023 pm 03:40 PM

1. The difference between Iterator and foreach is the polymorphic difference (the bottom layer of foreach is Iterator) Iterator is an interface type, it does not care about the type of collection or array; both for and foreach need to know the type of collection first, even the type of elements in the collection; 1. Why is it said that the bottom layer of foreach is the code written by Iterator: Decompiled code: 2. The difference between remove in foreach and iterator. First, look at the Alibaba Java Development Manual, but no error will be reported in case 1, and an error will be reported in case 2 (java. util.ConcurrentModificationException) first

How to determine the number of foreach loop in php How to determine the number of foreach loop in php Jul 10, 2023 pm 02:18 PM

​The steps for PHP to determine the number of the foreach loop: 1. Create an array of "$fruits"; 2. Create a counter variable "$counter" with an initial value of 0; 3. Use "foreach" to loop through the array, and Increase the value of the counter variable in the loop body, and then output each element and their index; 4. Output the value of the counter variable outside the "foreach" loop to confirm which element the loop reaches.

PHP returns an array with key values ​​flipped PHP returns an array with key values ​​flipped Mar 21, 2024 pm 02:10 PM

This article will explain in detail how PHP returns an array after key value flipping. The editor thinks it is quite practical, so I share it with you as a reference. I hope you can gain something after reading this article. PHP Key Value Flip Array Key value flip is an operation on an array that swaps the keys and values ​​in the array to generate a new array with the original key as the value and the original value as the key. Implementation method In PHP, you can perform key-value flipping of an array through the following methods: array_flip() function: The array_flip() function is specially used for key-value flipping operations. It receives an array as argument and returns a new array with the keys and values ​​swapped. $original_array=[

What does script mean? What does script mean? Aug 29, 2023 pm 02:00 PM

Script means script or script. In film, television, drama and other art forms, script is used to describe the dialogue, actions and scenes of characters, as well as the development and structure of the story. Script writing requires certain skills and experience, and it should be vivid and powerful, capable of attracting the audience's attention and conveying the emotions and themes of the story. Scripts are particularly important in the film and television industries. They are the basis of creation and determine the storyline, character development and dialogue content of the film. Script is an important tool for artists to create and express themselves.

What is the difference between foreach and for loop What is the difference between foreach and for loop Jan 05, 2023 pm 04:26 PM

Difference: 1. for loops through each data element through the index, while forEach loops through the data elements of the array through the JS underlying program; 2. for can terminate the execution of the loop through the break keyword, but forEach cannot; 3. for can control the execution of the loop by controlling the value of the loop variable, but forEach cannot; 4. for can call loop variables outside the loop, but forEach cannot call loop variables outside the loop; 5. The execution efficiency of for is higher than forEach.

PHP returns the current element in an array PHP returns the current element in an array Mar 21, 2024 pm 12:36 PM

This article will explain in detail about the current element in the array returned by PHP. The editor thinks it is very practical, so I share it with you as a reference. I hope you can gain something after reading this article. Get the current element in a PHP array PHP provides a variety of methods for accessing and manipulating arrays, including getting the current element in an array. The following introduces several commonly used techniques: 1. current() function The current() function returns the element currently pointed to by the internal pointer of the array. The pointer initially points to the first element of the array. Use the following syntax: $currentElement=current($array);2.key() function key() function returns the array internal pointer currently pointing to the element

what is script what is script Oct 12, 2023 am 10:04 AM

In the field of computer science, "script" usually refers to a scripting language or script file. A scripting language is an interpreted programming language commonly used for tasks such as automation, batch processing, and rapid prototyping.

How to solve scripterror How to solve scripterror Oct 18, 2023 am 09:44 AM

Solutions to scripterror include checking syntax, file path, checking network connection, browser compatibility, using try-catch statements, using developer tools for debugging, updating browsers and JavaScript libraries, or seeking professional help. Detailed introduction: 1. Check for syntax errors: Script Error may be caused by syntax errors in JavaScript code. Use developer tools to check the code and fix syntax errors. Make sure that the brackets, quotation marks, semicolons, etc. in the code are correct. etc.

See all articles