刚说到XSS攻击..
我记得我之前做一个项目.就给检测出存在XSS攻击。
开始我没有过滤提交的内容。
后来foreach 循环过滤每一个变量$_GET...$_POST...,发现不行。
然后只好写了个函数 直接检测 $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"] 判断直接 exit...
不知道大家都是怎么处理这个问题的...
------解决方案--------------------
htmlspecialchars过滤
------解决方案--------------------
htmlspecialchars
------解决方案--------------------
------解决方案--------------------
- PHP code
<?php $array = array("hello"=>"dsa"); foreach($array as &$value){ $value = htmlspecialchars($value); } var_dump($array); array(1) { ["hello"]=> &string(11) "dsa<>" } <br><font color="#e78608">------解决方案--------------------</font><br>
------解决方案--------------------
给你这三个函数,你根据需求稍加修改就好了,以后要获取内容的时候不管是get还是post传值都用这样的方法来获取:
$变量名=Toget('参数名或表单内的项目名');
- PHP code
//函数:获取数据 //参数:表单名,是否需要转译 Function Toget($__k,$Slash=True){ IF($__k==""){Return False;} IF(Array_key_exists($__k,$_REQUEST)){ $Value=IsSet($_POST["".$__k.""])?$_POST["".$__k.""]:$_GET["".$__k.""]; }Else{ Return False; } IF(Is_array($Value)){ $Value=Array_Filter($Value,'_nul'); }Else{ $Value=Trim($Value); IF($Value==""){Return False;} } IF($Slash){ $Value=Addlash($Value); } //反馈结果 IF(Is_array($Value)){Return $Value;} IF($Value=="" Or !Isset($Value)){ Return False; }Else{ Return $Value; } } function Addlash($Str){ !Defined('MAGIC_QUOTES_GPC') && Define('MAGIC_QUOTES_GPC',get_magic_quotes_gpc()); IF(!MAGIC_QUOTES_GPC){ IF(Is_array($Str)){ $keys=array_keys($Str); Foreach($keys as $key){ $val=$Str[$key];unset($Str[$key]); $Str[addslashes($key)]=Addlash($val); } }Else{ $Str=addslashes($Str); } } Return $Str; } //清理数组中的空值 //用法:Print_r (Array_Filter($Arr,'_nul')); Function _nul($param){ Return ($param!="") ? True : False; } <br><font color="#e78608">------解决方案--------------------</font><br>这个得mark一下,继续~ <br><font color="#e78608">------解决方案--------------------</font><br> XSS又叫CSS (Cross Site Script) ,跨站脚本攻击。它指的是恶意攻击者往Web页面里插入恶意脚本代码,当用户浏览该页之时,嵌入其中Web里面的脚本代码会被执行,从而达到恶意攻击用户的特殊目的。XSS属于被动式的攻击,因为其被动且不好利用,所以许多人常忽略其危害性。<br><br>服务器端脚本防止 XSS 的唯一手段是检查传入的数据中是否有 script 标记<br>当然,攻击者还有 n 多的手段去直接在你的页面中嵌入恶意代码。这就不是服务器端脚本能解决的问题了<br>简单的用 htmlspecialchars 处理一下,只适合于其后只将传入的数据作为字符串显示的场合。<br>由于 <script xss></script><br>对于 #7 的 <img src alt=" 刚刚说到XSS攻击. " >显然使用的检测算法不是最大匹配算法,而是简单的包含算法<br>虽无大错,但误判率升高。宁可错杀三千,不可放过一个<br><br><br><br> <br><font color="#e78608">------解决方案--------------------</font><br>

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.


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