Backend DevelopmentPHP TutorialHow to get the value of checkbox in php and have the output method of checkbox default value
|
This article introduces how to get the value of the checkbox in PHP and how to output the default value of the checkbox. For everyone’s learning reference.
First, let’s look at how to checkbox value. Checkbox uses an array when reading values in PHP. Example 1,
<html xmlns="http://bbs.it-home.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>php获取 checkbox复选框值的方法_bbs.it-home.org</title>
</head>
<body>
<form name="form1" method="post" action="">
<label>
<input type="checkbox" name="checkbox[]" value="复选一">
复选一
</label>
<label>
<input type="checkbox" name="checkbox[]" value="复选二">
</label>
复选二
<label>
<input type="checkbox" name="checkbox[]" value="复选三">
</label>
复选三
<label>
<input type="checkbox" name="checkbox[]" value="复选四">
</label>
复选四
<label>
<input type="submit" name="Submit" value="提交">
</label>
</form>
</body>
</html>
<?
if( $_POST )
{
$value = $_POST['checkbox'];
echo '你选择了:'.implode(',',$value);
//由于checkbox属性，必须把checkbox复选择框的名字设置为一个如果checkbox[]。
}
?>
Example 2,
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>php获取多选框checkbox值_bbs.it-home.org</title>
</head>
<body>
<?php
$area_arr = array();
if($_GET['action']=="submit"){
$area_arr = $_POST['area'];
}
echo "您选定的地区为: ";
foreach ($area_arr as $k=>$v){
echo $v." ";
}
?>
<form id="form1" name="form1" method="post" action="?action=submit">
<p>河北
<label>
<input type="checkbox" id="area" name="area[]" value="河北">
</label>
</p>
<p>河南
<label>
<input type="checkbox" id="area[]" name="area[]" value="河南">
</label>
</p>
<p>山西
<label>
<input type="checkbox" id="area[]" name="area[]" value="山西">
</label>
</p>
<p>山东
<label>
<input type="checkbox" id="area[]" name="area[]" value="山东">
</label>
</p>
<p>江苏
<label>
<input type="checkbox" id="area[]" name="area[]" value="江苏">
</label>
</p>
<p>浙江
<label>
<input type="checkbox" id="area[]" name="area[]" value="浙江">
</label>
</p>
<p>
<label>
<input type="submit" name="Submit" value="提交">
</label>
</p>
</form>
</body>
</html>
Example 3, The php checkbox selects questions by default, and you can use if to judge, as follows:
<input name="jbxue" type="checkbox" value="jiaju" <?php if($myrow[fujia_jiaju]) echo("checked");?>>
This is about how to get the checkbox value in php. I hope to be helpful. |
Working with Flash Session Data in LaravelMar 12, 2025 pm 05:08 PMLaravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-
cURL in PHP: How to Use the PHP cURL Extension in REST APIsMar 14, 2025 am 11:42 AMThe PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.
Simplified HTTP Response Mocking in Laravel TestsMar 12, 2025 pm 05:09 PMLaravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>
12 Best PHP Chat Scripts on CodeCanyonMar 13, 2025 pm 12:08 PMDo you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom
Explain the concept of late static binding in PHP.Mar 21, 2025 pm 01:33 PMArticle 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
PHP Logging: Best Practices for PHP Log AnalysisMar 10, 2025 pm 02:32 PMPHP logging is essential for monitoring and debugging web applications, as well as capturing critical events, errors, and runtime behavior. It provides valuable insights into system performance, helps identify issues, and supports faster troubleshoot
How to Register and Use Laravel Service ProvidersMar 07, 2025 am 01:18 AMLaravel's service container and service providers are fundamental to its architecture. This article explores service containers, details service provider creation, registration, and demonstrates practical usage with examples. We'll begin with an ove
Customizing/Extending Frameworks: How to add custom functionality.Mar 28, 2025 pm 05:12 PMThe article discusses adding custom functionality to frameworks, focusing on understanding architecture, identifying extension points, and best practices for integration and debugging.
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
VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
SublimeText3 Mac version
God-level code editing software (SublimeText3)
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
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),
