search
HomeBackend DevelopmentPHP Tutorial PHP 完结脚本 但是不影响后面的HTML输出

PHP 结束脚本 但是不影响后面的HTML输出
可能是比较小白的问题。
比如:

<?php<br />
	if(!isset($_GET["id"])||!isset($_GET["code"]))<br />
	{<br />
		echo "<title>注册验证</title>";<br />
		exit();<br />
	}<br />
        else<br />
        {<br />
                echo "<title>注册验证1</title>";<br />
        }<br />
        ......<br />
?>


比如这段脚本在本身HTML中

的位置,判定是否有GET提交的数据来输出不同的title<br> 后面是有脚本的,但是如果GET没有数据传来,后面连接数据库什么的就没有必要,所以想要结束。<br> 但是结束后,使用exit或者return,后面HTML中的内容等也就不输出了,该怎么办?

------解决方案--------------------
不能 exit();
而应将连接数据库什么的放在 else 分支中
------解决方案--------------------
你也可以把这些php代码放在单独的文件中 include 进来
只是要将  exit(); 改为 return;

------解决方案--------------------
本帖最后由 xuzuning 于 2013-02-21 12:57:32 编辑 你还可以写成函数
作为结构化编程,无非就是
if else
if elseif else
switch case default
另类点就是
while break

真的不喜欢结构化编程时
php5.3已经恢复了对 goto 的支持,适当的使用也还是蛮不错的
goto a;<br />
echo 123; //这里不会被执行<br />
a:<br />
echo 'abcd';<br />
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 do you create and use an interface in PHP?How do you create and use an interface in PHP?Apr 30, 2025 pm 03:40 PM

The article explains how to create, implement, and use interfaces in PHP, focusing on their benefits for code organization and maintainability.

What is the difference between crypt() and password_hash()?What is the difference between crypt() and password_hash()?Apr 30, 2025 pm 03:39 PM

The article discusses the differences between crypt() and password_hash() in PHP for password hashing, focusing on their implementation, security, and suitability for modern web applications.

How can you prevent Cross-Site Scripting (XSS) in PHP?How can you prevent Cross-Site Scripting (XSS) in PHP?Apr 30, 2025 pm 03:38 PM

Article discusses preventing Cross-Site Scripting (XSS) in PHP through input validation, output encoding, and using tools like OWASP ESAPI and HTML Purifier.

What is autoloading in PHP?What is autoloading in PHP?Apr 30, 2025 pm 03:37 PM

Autoloading in PHP automatically loads class files when needed, improving performance by reducing memory use and enhancing code organization. Best practices include using PSR-4 and organizing code effectively.

What are PHP streams?What are PHP streams?Apr 30, 2025 pm 03:36 PM

PHP streams unify handling of resources like files, network sockets, and compression formats via a consistent API, abstracting complexity and enhancing code flexibility and efficiency.

What is the maximum size of a file that can be uploaded using PHP ?What is the maximum size of a file that can be uploaded using PHP ?Apr 30, 2025 pm 03:35 PM

The article discusses managing file upload sizes in PHP, focusing on the default limit of 2MB and how to increase it by modifying php.ini settings.

What is Nullable types in PHP ?What is Nullable types in PHP ?Apr 30, 2025 pm 03:34 PM

The article discusses nullable types in PHP, introduced in PHP 7.1, allowing variables or parameters to be either a specified type or null. It highlights benefits like improved readability, type safety, and explicit intent, and explains how to declar

What is the difference between the unset() and unlink() functions ?What is the difference between the unset() and unlink() functions ?Apr 30, 2025 pm 03:33 PM

The article discusses the differences between unset() and unlink() functions in programming, focusing on their purposes and use cases. Unset() removes variables from memory, while unlink() deletes files from the filesystem. Both are crucial for effec

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

Video Face Swap

Video Face Swap

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

Hot Tools

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment