Support for PHP 8.3

[yasinuddowla]

I wanted to use PHP 8.3 with CI 3.1.13

I've installed PHP 8.3 and it gives the following error.

A PHP Error was encountered
Severity: 8192
Message: Creation of dynamic property CI_URI::$config is deprecated
Filename: core/URI.php
Line Number: 102
Backtrace:
  File: /Users/yasinuddowla/sites/dana/portal/public/admin.php
  Line: 299
  Function: require_once

[jafjaf]

Codeigniter 3.1.13 don't support PHP >8.2 (yet), you can however update on your own using these changes

If you instead would like an updated repo with PHP 8.2 support see;

• https://github.com/ib3ltd/CodeIgniter/tree/master
• https://github.com/pocketarc/codeigniter

[otengkwame]

I am extending a copy of CodeIgniter 3 that works with PHP 8.3 from here: https://github.com/sylynder/webby, https://github.com/sylynder/engine. I am also borrowing some concepts from CodeIgniter 4

[putuardiworks]

@jafjaf, I would like to ask: with the current CodeIgniter v3.1.13, what is the latest stable PHP version that works out-of-the-box?

[mariolucasdev]

@jafjaf, I would like to ask: with the current CodeIgniter v3.1.13, what is the latest stable PHP version that works out-of-the-box?

currently i have 2 projects using the Codeigniter version 3.1.13 running with php 8.2.

[jafjaf]

@jafjaf, I would like to ask: with the current CodeIgniter v3.1.13, what is the latest stable PHP version that works out-of-the-box?

A fresh install of Codeigniter 3 supports PHP version up to and including 8.1.
If you're going to start a new project it's better to use Codeigniter 4, however if you're already using Codeigniter 3 and need PHP support above 8.1 you can implement the changes mentioned above.

I'm also running multiple projects using PHP 8.3 and Codeigniter 3 (with PHP >8.2) changes implemented.
More specifically these changes

[putuardiworks]

I didn't expect to get a response this fast. Wow, the community is still great 🥳

@mariolucasdev Do you run CodeIgniter v3.1.13 with PHP 8.2 without making any changes to the system?

@jafjaf So, it is safe to use PHP 8.1? And if I want to upgrade to PHP 8.2 or higher, then I need to make the changes you mentioned? I am still working on a CodeIgniter 3 project, so I need to know which is the latest PHP version that is safe to upgrade to.

[jafjaf]

I didn't expect to get a response this fast. Wow, the community is still great 🥳

@mariolucasdev Do you run CodeIgniter v3.1.13 with PHP 8.2 without making any changes to the system?

@jafjaf So, it is safe to use PHP 8.1? And if I want to upgrade to PHP 8.2 or higher, then I need to make the changes you mentioned? I am still working on a CodeIgniter 3 project, so I need to know which is the latest PHP version that is safe to upgrade to.

It depends on how you define "safe."

• The repository is >10 years old.
• CodeIgniter 3 no longer has active official support.
• There is only one official maintainer.
• It has been superseded by the more up-to-date CodeIgniter 4 framework.

However, the community remains quite active, and there are ongoing efforts to keep CodeIgniter 3 viable with updates and patches.

Supporting PHP versions for CodeIgniter 3

• PHP 8.1: Generally considered safe to use with CodeIgniter 3, with some minor adjustments.
• PHP 8.2 and higher: Require changes to ensure compatibility.

[poodle123]

Pocketarc Fork already works with PHP 8.3 without any issues. You just have to adapt your own code where needed:

https://github.com/pocketarc/codeigniter

[jafjaf]

Pocketarc Fork already works with PHP 8.3 without any issues. You just have to adapt your own code where needed:

https://github.com/pocketarc/codeigniter

Quoting jamieburchell below from #6173

The releases from this fork appear to be based on the develop branch and from scanning the commits, include functionality changes. The develop branch is quite a bit different to the last released version.

IMO it would be better to cherry-pick and apply specific fixes to the latest actual release/master if you want to keep as close as possible to the last official 3.1.13 release.