Table of Contents
回复讨论(解决方案)
Home Backend Development PHP Tutorial 请问php传给js的变量怎么无法判断

请问php传给js的变量怎么无法判断

Jun 23, 2016 pm 02:09 PM

使用了ajax的回调函数,当php传来的值=1时 js  alert 成功 传来的是2时候  js alert 失败
但是在回调函数判断msg=1 时候 无论传来是什么值 js都是alert 失败

<?php   require("mysql.php"); $name=$_POST["name"]; $password = $_POST["password"]; if(empty($name)||empty($password)){ echo"系统检测到非法登录"; } $sql="select name,password from testuser where name='$name' and password='$password'";$result=mysql_query($sql);$rows=mysql_num_rows($result);if($rows==1){echo "1";}else{echo "2";} ?>
Copy after login


js.......................

$(document).ready(function(){$("#login").bind("mouseover",login);function login(){var name = $("#username").val();var password = $("#password").val();var param = {"name":name,"password":password};if(name==""){alert("警告!非法访问,用户名为空") ;return false;}else{if(password==""){alert("警告!非法访问,密码为空")return false;}else{$.ajax({type:"post",url:"http://localhost/kkc/login.php",data:param,success:function(msg){if(msg==1){alert ("成功");}else{alert("失败");}}});}};};});
Copy after login


回复讨论(解决方案)

应该是 BOM 头的影响

echo base64_encode(file_get_contents('http://localhost/kkc/login.php'));
贴出结果

这个楼主先用chrome检查一下PHP文件返回的是什么,看看是不是有什么其他的问题

echo base64_encode(file_get_contents('http://localhost/kkc/login.php'));
贴出结果 那请问怎么如何解决啊...没碰到过这个问题...

你还没有按我要求的去做!
我如何给你下一步的建议?

难道要我糊弄你一下???

你还没有按我要求的去做!
我如何给你下一步的建议?

难道要我糊弄你一下???

bom头我已经去掉了,接下来怎么做...我是做java的  第一次做php不懂...

不是还有 require("mysql.php"); 吗?
mysql.php 的 BOM 头也去掉了吗?

是做java的 不是挡箭牌,因为那是基础知识

不是还有 require("mysql.php"); 吗?
mysql.php 的 BOM 头也去掉了吗?

是做java的 不是挡箭牌,因为那是基础知识
好吧,但是在j2ee项目中没有出现过此类问题

success:function(msg){
   alert(msg);  //看看弹出什么
if(msg==1){
alert ("成功");
}else{
alert("失败");
}

success:function(msg){
   alert(msg);  //看看弹出什么
if(msg==1){
alert ("成功");
}else{
alert("失败");
}
如果账户正确弹出1  失败弹出2

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
4 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
1671
14
PHP Tutorial
1276
29
C# Tutorial
1256
24
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 and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

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.

The Enduring Relevance of PHP: Is It Still Alive? The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP and Python: Different Paradigms Explained PHP and Python: Different Paradigms Explained Apr 18, 2025 am 12:26 AM

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.

How do you prevent SQL Injection in PHP? (Prepared statements, PDO) How do you prevent SQL Injection in PHP? (Prepared statements, PDO) Apr 15, 2025 am 12:15 AM

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python: Code Examples and Comparison PHP and Python: Code Examples and Comparison Apr 15, 2025 am 12:07 AM

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

See all articles