Non-static method should not be called statically

Yii 2.0
1

Hello.

I have problem with yii2.

The project has a controller:
\frontend\controllers\ArticleController

The controller has a method:


public function getCategoryName($id){
	// ...
}

Some widget refers to the controller:

$category = ($in->type_id==1) ? \frontend\controllers\ArticleController::getCategoryName($post->category) : 'Полезные статьи';

It works on the server!
Doesn’t work on my localhost!

What’s the matter?
Why is there no error on the server, but there is an error on my localhost?
I would be grateful for your answer.

2

Different environment configurations, maybe different PHP versions as well. Basically you should not call non-static methods statically ever.

3

Check PHP Versions on Localhost and Server. PHP 8.0 and above will throw exception about this.

https://www.php.net/manual/en/language.oop5.static.php

4

Thaks you!
The problem is in the environment.

Localhost has php version 5.6.40
There is a mistake here.

Server has php version 5.6.36
It works.

I started up the old localhost. It has php version 5.6.32
It works too.

This is not my code. But I have to fix it.
The method was called incorrectly!

5

And please update your PHP. 5.6 is ancient.