Detailed explanation of the volist tag in thinkphp
This article introduces you to the volist tag in thinkphp through practical cases. This article introduces you to you in very detail and has reference value. Friends who need it can refer to it
Attributes:
name (required): the data template variable to be output
id (required): the loop variable
offset (optional): the offset of the data to be output
length (optional): the length of the output data
key (optional): the key variable of the loop, the default value is i
mod (optional): the key value Module, the default is 2
empty (optional): If the data is empty, the displayed string
Usually the result returned by the select method of the model is a two-dimensional array, and the volist tag can be used directly for output.
$User = M('User'); $list = $User->select(); $this->assign('list',$list); <volist name="list" id="vo"> {$vo.id} {$vo.name} </volist>
Output even records
<volist name="list" id="vo" mod="2" > <eq name="mod" value="1">{$vo.name}</eq> </volist>
mod starts counting from 0, here the mod loops The count is 0,1
Mod attribute is also used to control the line wrapping of certain records, for example:
<volist name="list" id="vo" mod="5" > {$vo.name} <eq name="mod" value="4"><br/></eq> </volist>
mod loop count, 0,1 ,2,3,4 wrap when the value is 4. That is, 5 pieces of data are changed to one row.
Output loop variable
<volist name="list" id="vo" key="k" > {$k}.{$vo.name} </volist>
The loop variable starts from 1 1, 2, 3, 4
If the key attribute is not specified, the loop variable i is used by default, for example:
<volist name="list" id="vo" > {$i}.{$vo.name} </volist>
Comprehensive case:
<volist name="agentData" id="vo" mod="3" key="k" empty="暂时没有数据"> <p style="display:inline-block;width:280px;margin:3px;"> <input type="radio" class="regular-radio" value="{sh:$vo.agent_id}" name="agent_id" id="agent_{sh:$k}" <eq name="k" value="1">checked="checked"</eq>><label for="agent_{sh:$k}"></label><span style="display:inline-block;padding:0px 0px 5px 5px;">{sh:$vo.name} 电话({sh:$vo.tel})</span> </p> {sh:$mod} <eq name="mod" value="2"><br/></eq> </volist>
Effect
The above is the volist tag in thinkphp introduced by the editor. I hope it will be helpful to everyone. If you have If you have any questions, please leave me a message and I will reply to you in time. I would also like to thank you all for your support of the php Chinese website!
Articles you may be interested in:
PHP implements image processing tools that can add watermarks and generate thumbnails_php skills
PHP implementation of the method of printing binary trees in zigzag order
The above is the detailed content of Detailed explanation of the volist tag in thinkphp. 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

To run the ThinkPHP project, you need to: install Composer; use Composer to create the project; enter the project directory and execute php bin/console serve; visit http://localhost:8000 to view the welcome page.

ThinkPHP has multiple versions designed for different PHP versions. Major versions include 3.2, 5.0, 5.1, and 6.0, while minor versions are used to fix bugs and provide new features. The latest stable version is ThinkPHP 6.0.16. When choosing a version, consider the PHP version, feature requirements, and community support. It is recommended to use the latest stable version for best performance and support.

Steps to run ThinkPHP Framework locally: Download and unzip ThinkPHP Framework to a local directory. Create a virtual host (optional) pointing to the ThinkPHP root directory. Configure database connection parameters. Start the web server. Initialize the ThinkPHP application. Access the ThinkPHP application URL and run it.

Performance comparison of Laravel and ThinkPHP frameworks: ThinkPHP generally performs better than Laravel, focusing on optimization and caching. Laravel performs well, but for complex applications, ThinkPHP may be a better fit.

"Development Suggestions: How to Use the ThinkPHP Framework to Implement Asynchronous Tasks" With the rapid development of Internet technology, Web applications have increasingly higher requirements for handling a large number of concurrent requests and complex business logic. In order to improve system performance and user experience, developers often consider using asynchronous tasks to perform some time-consuming operations, such as sending emails, processing file uploads, generating reports, etc. In the field of PHP, the ThinkPHP framework, as a popular development framework, provides some convenient ways to implement asynchronous tasks.

ThinkPHP installation steps: Prepare PHP, Composer, and MySQL environments. Create projects using Composer. Install the ThinkPHP framework and dependencies. Configure database connection. Generate application code. Launch the application and visit http://localhost:8000.

ThinkPHP is a high-performance PHP framework with advantages such as caching mechanism, code optimization, parallel processing and database optimization. Official performance tests show that it can handle more than 10,000 requests per second and is widely used in large-scale websites and enterprise systems such as JD.com and Ctrip in actual applications.

Development suggestions: How to use the ThinkPHP framework for API development. With the continuous development of the Internet, the importance of API (Application Programming Interface) has become increasingly prominent. API is a bridge for communication between different applications. It can realize data sharing, function calling and other operations, and provides developers with a relatively simple and fast development method. As an excellent PHP development framework, the ThinkPHP framework is efficient, scalable and easy to use.
