search
HomeBackend DevelopmentPHP Tutorialphp 使用ajax发送密码过去,接收端发现密码被裁剪了

没怎么用过PHP。特来此论坛问下。
现在遇到的问题是,用户输入用户名与密码,进行登录,如果密码简单点,是可以传过去的。但如果密码是ab@;&1这种,则发现服务端得到的密码值被裁剪了,变成ab@;了。但是代码中紧接着,下面的部分也是这么操作的,居然又可以,实在没找出两处的差异,求解惑。

client部分的PHP

function getFirstU8Accid(){	var sUserName = document.getElementById("user_name").value.toLowerCase();	var sPassword = document.getElementById("password").value;	sUserName = escape(sUserName);	if(sUserName=="")	{		return("");	}	var sUrl = '/Server/a.php?t='+escape(Date())+'&a='+sUserName+'&b='+sPassword;        var xml = CreateXMLHttp();	xml.open("GET",sUrl,false);	xml.send();	var sLoginUser = xml.responseText;        //处理.......}                                        //具体调用处如下代码所示                                        //此处调用getFirstU8Accid()失败,具体错误是服务端的PHP并没有得到完整的密码内容。					Accid = getFirstU8Accid();					try{var guid = obj.GetClientGUID();}catch(e){return " Error:failed to call GetClientGUID,error message:" + e.message;}					var sUrl = '/Server/b.php?t='+escape(Date())+'&a='+user+'&b='+password+'&c='+sDomain;					var xml = CreateXMLHttp();					xml.open("GET",sUrl,false);					xml.send(null);                                        //此处能正常返回,因为b.php中的代码能正常获取到密码内容					return xml.responseText;[/color]a.php   b.php中的代码大概如下,其实基本一样,只是b中参数多了,多了一个解析的。[code=php]<?php $langs=$_COOKIE['LANGUAGES'];$langs=empty($langs) ? 'cn' : $langs;$language=include"lang-$langs.php";require("CmxConsts.php");require("CmxCommon.php");try {	$sUserName = $_GET["a"];	$sUserName = str_replace("|YJ|","&",$sUserName);	$sUserName = str_replace("|YJJ|","#",$sUserName);        //下面获取的密码就被裁剪了。	$sPassword = $_GET["b"];       //...................?>


给我的感觉,就是第一次失败后,再做第二次,只是多带了参数,就成功了。虽然服务端a,b两个PHP文件,但其实没啥区别。


回复讨论(解决方案)

& 字符在 url 参数串中是作为字段分隔符出现的,如果你的值中有该字符,则需要做 url 编码处理(%26)

版主真快哈,可是第二次提交时,好像也没有做处理啊。

另外,URL编码处理,有没有通用的代码呢?我是中英繁三种语言的,会有影响不?PHP不熟。我也刚用没多久,请问有相关的资料或小例子没?

js 不是有 encodeURI、encodeURIComponent 方法吗

问题解决了。第一处处理时,对密码没有escape操作,而接收处则进行了unescape处理。而第二处是配对的。谢谢版本的提示。

var sUrl = '/Server/a.php?t='+escape(Date())+'&a='+sUserName+'&b='+sPassword;

改?

var sUrl = '/Server/a.php?t='+escape(Date())+'&a='+encodeURIComponent(sUserName)+'&b='+encodeURIComponent(sPassword);

Statement
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
How does PHP type hinting work, including scalar types, return types, union types, and nullable types?How does PHP type hinting work, including scalar types, return types, union types, and nullable types?Apr 17, 2025 am 12:25 AM

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.

How does PHP handle object cloning (clone keyword) and the __clone magic method?How does PHP handle object cloning (clone keyword) and the __clone magic method?Apr 17, 2025 am 12:24 AM

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 vs. Python: Use Cases and ApplicationsPHP vs. Python: Use Cases and ApplicationsApr 17, 2025 am 12:23 AM

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.

Describe different HTTP caching headers (e.g., Cache-Control, ETag, Last-Modified).Describe different HTTP caching headers (e.g., Cache-Control, ETag, Last-Modified).Apr 17, 2025 am 12:22 AM

Key players in HTTP cache headers include Cache-Control, ETag, and Last-Modified. 1.Cache-Control is used to control caching policies. Example: Cache-Control:max-age=3600,public. 2. ETag verifies resource changes through unique identifiers, example: ETag: "686897696a7c876b7e". 3.Last-Modified indicates the resource's last modification time, example: Last-Modified:Wed,21Oct201507:28:00GMT.

Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1?Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1?Apr 17, 2025 am 12:06 AM

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values ​​to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP: An Introduction to the Server-Side Scripting LanguagePHP: An Introduction to the Server-Side Scripting LanguageApr 16, 2025 am 12:18 AM

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP and the Web: Exploring its Long-Term ImpactPHP and the Web: Exploring its Long-Term ImpactApr 16, 2025 am 12:17 AM

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

Why Use PHP? Advantages and Benefits ExplainedWhy Use PHP? Advantages and Benefits ExplainedApr 16, 2025 am 12:16 AM

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.

See all articles

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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Chat Commands and How to Use Them
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools