Fatal error: Class 'app\admin\model\Collection' not found

An error will be reported. How to deal with this?

From [PHPdiscussion group] 2018-07-20 15:00:31 0  2  1757

请问header("content-type: image/png");这个的作用是什么？

请问header("content-type: image/png");这个的作用是什么？

From [PHPdiscussion group] 2016-12-20 16:41:56 0  2  1757

Looking for practical tutorials on PHP+layui project

Why is there no practical tutorial on the PHP+layui project on the PHP Chinese website? There is only one tuto...

From [PHPdiscussion group] 2019-12-27 15:34:20 0  4  1757

How to set the latest version of phpstudy to display the folder list as soon as it is opened

From [PHPdiscussion group] 2017-09-27 18:14:02 0  2  1757

Click on the left menu bar on the background homepage

The page appearance method does not exist: app\index\controller\Index->article-list()

From [PHPdiscussion group] 2018-01-18 12:54:00 0  2  1755

Why does Forbidden appear after I open the browser and enter localhost?

It is also filled in and created step by step according to the teacher's steps. Please reply to the teacher af...

From [PHPdiscussion group] 2019-10-09 19:49:46 0  2  1755

php框架 - Laravel vs CakePHP vs CodeIgniter 的看法（性能，开发效率，负债能力）

最近打算用做一个比较中型的PHP应用，想到用比应用广泛的MVC框架。要求 {代码...} Yii2、symfony2都太庞大，不适合。考虑到了Laravel CakePHP Kohana CI。先说一下自己对这三款框架的...

From [PHPdiscussion group] 2017-04-10 14:58:27 0  17  1755

After the installation is complete, click Manage and an Internal Server Error appears.

The server encountered an internal error or misconfiguration and was unable to complete your request.Please co...

From [PHPdiscussion group] 2018-05-08 23:21:22 0  3  1754

It sounds a bit loud

It sounds a bit loud

From [PHPdiscussion group] 2018-04-02 15:37:23 0  1  1754

Teacher, I use dump(config::get()); to get the configuration. There is obviously no app_status in my config/app.php.

Teacher, I use dump(config::get()); to get the configuration. There is obviously no app_status in my config/ap...

From [PHPdiscussion group] 2018-09-10 09:52:11 0  4  1753

An error was encountered while trying to retrieve the latest version of a package from search.maven.org

"Error: Unable to retrieve data from Maven repository" while retrieving latest version number from s...

From [PHPdiscussion group] 2024-04-05 12:11:23 0  1  1753

What are the commonly used cookie encryption methods?

The thinkphp5.1 framework first obtains the current timestamp, then uses the timestamp to complete the usernam...

From [PHPdiscussion group] 2018-11-01 15:59:54 0  1  1751

http://www.phpcms.cn/ website closed down

This official website has closed down. Where can I download it?

From [PHPdiscussion group] 2020-06-18 21:19:45 0  1  1750

Login template

The login template is not displayed when following the video, and it prompts No input file specified.

From [PHPdiscussion group] 2018-07-08 16:07:42 0  4  1749

Can I learn English if I don't understand it?

From [PHPdiscussion group] 2017-08-24 22:23:41 0  4  1749