Backend Development
PHP Tutorial
How to obtain form data through get method in PHP? (detailed explanation)
How to obtain form data through get method in PHP? (detailed explanation)
When we design web pages for interaction, we usually use the get variable method in PHP to obtain the data in the form, so as to implement various web page dynamic queries or requests. For friends who have a little basic knowledge of HTML, they should all know that there are two submission methods in HTML forms, namely get and post. However, for novices, this knowledge point may be a bit vague.
Then this article mainly introduces the get method in detail, that is, the specific method and use of PHP to obtain form form data through get variables. Later articles will continue to introduce the specific usage and function of post.
The following is a specific code example for you:
1. Form form code example (form get submission)
<head>
<meta charset="utf-8">
<title>form表单get方法示例</title>
</head>
<body>
<form action="/test/test.php" method="get" >
<form action="test.php" method="get">
名字: <input type="text" name="fname"><br>
年龄: <input type="text" name="age"><br>
<input type="submit" value="提交">
</form>
</form>
</body>
</html>Effect As shown below:
2, test.php code (php receives get data)
<?php
header("content-type:text/html;charset=utf-8"); //设置编码
?>
欢迎 <?php echo $_GET["fname"]; ?>!<br>
你的年龄是 <?php echo $_GET["age"]; ?> 岁。After clicking the submit button in code 1 , the effect of the web page is as follows:
Here you can pay attention to observe, what are the characteristics of the links in the browser address bar? It is not difficult to find that the information sent from the form with the GET method will be displayed in the address bar and is visible to anyone. That is, when using method="get" in an HTML form, all variable names and values will be displayed in the URL. (Note: The test.php file can collect form data through the $_GET variable)
To sum up: this method should not be used when sending passwords or other sensitive information! But because the variable parameters appear in the URL, you can bookmark the page. In some cases, it is also useful, such as when some information needs to be displayed directly to the user.
The above introduction to relevant knowledge about PHP obtaining form get parameters hopes to be helpful to friends in need.
The above is the detailed content of How to obtain form data through get method in PHP? (detailed explanation). For more information, please follow other related articles on the PHP Chinese website!
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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
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
1386
52
Alipay PHP SDK transfer error: How to solve the problem of 'Cannot declare class SignData'?
Apr 01, 2025 am 07:21 AM
Alipay PHP...
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
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,
Describe the SOLID principles and how they apply to PHP development.
Apr 03, 2025 am 12:04 AM
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.
How to automatically set permissions of unixsocket after system restart?
Mar 31, 2025 pm 11:54 PM
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...
Explain the concept of late static binding in PHP.
Mar 21, 2025 pm 01:33 PM
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 debug CLI mode in PHPStorm?
Apr 01, 2025 pm 02:57 PM
How to debug CLI mode in PHPStorm? When developing with PHPStorm, sometimes we need to debug PHP in command line interface (CLI) mode...
How to send a POST request containing JSON data using PHP's cURL library?
Apr 01, 2025 pm 03:12 PM
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�...
Explain late static binding in PHP (static::).
Apr 03, 2025 am 12:04 AM
Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.
