fix: [Debug] Backtrace does not display contents of file in PHP +8.3.0

[Nightprince]

https://www.php.net/manual/en/function.highlight-string.php

Checklist:

• Securely signed commits
• Component(s) with PHPDoc blocks, only if necessary or adds value
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

[kenjis]

Thank you for sending PR!

Can you explain what's the issue, and add test code to prove your fix?

See https://github.com/codeigniter4/CodeIgniter4/blob/develop/contributing/pull_request.md#unit-testing

[paulbalandan]

I think this is fixing the highlight_string output which I believe has been fixed already in 4.5 branch.

[Nightprince]

Thank you for sending PR!

Can you explain what's the issue, and add test code to prove your fix?

See https://github.com/codeigniter4/CodeIgniter4/blob/develop/contributing/pull_request.md#unit-testing

In PHP versions 8.3.0 and above due to update of highlight_string function
https://www.php.net/manual/en/function.highlight-string.php
Backtrace does not display contents of file and does not highlight error line and is empty.

[kenjis]

I think it was fixed in #8401.

@Nightprince Can you show the steps to reproduce the issue?
Why do you need to fix the deprecated method?

[datamweb]

@Nightprince Can you post a screenshot before and after this PR?

[Nightprince]

@Nightprince Can you post a screenshot before and after this PR?

Before:

After:

[kenjis]

It seems you are using very old CI4. Could you update to v4.4.6?

[datamweb]

@Nightprince As mentioned, your CI version is outdated. The output in the CI4.4.6 and PHP 8.3.0 is as follows:

It is recommended to upgrade to the new version. Before anything else don't forget to make a backup then upgrade to the latest version step by step via:
https://codeigniter.com/user_guide/installation/upgrading.html

@kenjis I suggest moving the information shown in footer to the top, it can be helpful in reporting users.

[kenjis]

@datamweb I sent a PR #8626

[Nightprince]

It seems you are using very old CI4. Could you update to v4.4.6?

problem has been fixed in latest version, but this pull request can be useful for those who use older versions.

[kenjis]

We recommend to use the latest version.

But if you really want to fix the deprecated method, modify it exactly the same way as the following change:
https://github.com/codeigniter4/CodeIgniter4/pull/8401/files
Or can I close this?

[Nightprince]

We recommend to use the latest version.

But if you really want to fix the deprecated method, modify it exactly the same way as the following change:
https://github.com/codeigniter4/CodeIgniter4/pull/8401/files
Or can I close this?

Not important for me