非常简单的php验证.
请大神给段代码吧,我知道很简单,可是我试验很多方法,不是不跳转就是原地不动。怎么也搞不出来.
就是实现:输入框写邮政编码,然后验证如果是5个数字就跳转到下一页,不是5就停留在原页并且在输入框后面添加“邮政编码不对”.
感谢各位大神.
回复讨论(解决方案)
邮政编码是6位数吧?
这是个基础的表单验证,js 就搞定了。何必劳烦 php ?
js正则判断一下就可以了
<script> <br /> function iszipcode(object) <br /> { <br /> var s =document.getElementById(object.id).value; <br /> var pattern =/^[0-9]{6}$/; <br /> if(s!="") <br /> { <br /> if(!pattern.exec(s)) <br /> { <br /> alert('请输入正确的邮政编码'); <br /> object.value=""; <br /> object.focus(); <br /> } <br /> } <br /> } <br /> <br /> </script>
可以自己试着写写哦!
if(ereg('/\d{5}/',$string))echo 'Right';
楼主要的就是这个PHP?
这个用JS判断下就行了,你要求输错了再后面提示信息的话,只能用js最简单了~

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Alipay PHP...

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.

Article discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo

How to automatically set the permissions of unixsocket after the system restarts. Every time the system restarts, we need to execute the following command to modify the permissions of unixsocket: sudo...

Sending JSON data using PHP's cURL library In PHP development, it is often necessary to interact with external APIs. One of the common ways is to use cURL library to send POST�...

Article discusses essential security features in frameworks to protect against vulnerabilities, including input validation, authentication, and regular updates.

The article discusses adding custom functionality to frameworks, focusing on understanding architecture, identifying extension points, and best practices for integration and debugging.
