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Hello, I am trying to upgrade ip.board which requires php 8. When I set php to version 8 I receive a server 500 errors.

 

In this case you have to upgrade manually.

See section "Manual Upgrade" here: 

 

thanks for any suggestions

 

https://slingbank.com/admin/upgrade/?sessionCheck=1

just get a blank white screen on this first page when upgrading (php8)

from the error_log

 

#0 /home/slingbank/public_html/init.php(1611): IPS\IPS::init()
#1 /home/slingbank/public_html/index.php(12): require_once('/home/slingbank...')
#2 {main}
  thrown in /home/slingbank/public_html/init.php on line 563
[10-Jun-2023 12:54:35 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function IPS\mb_internal_encoding() in /home/slingbank/public_html/init.php:563
Stack trace:
#0 /home/slingbank/public_html/init.php(1611): IPS\IPS::init()
#1 /home/slingbank/public_html/index.php(12): require_once('/home/slingbank...')
#2 {main}
  thrown in /home/slingbank/public_html/init.php on line 563
[10-Jun-2023 12:59:28 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function IPS\mb_internal_encoding() in /home/slingbank/public_html/init.php:563
Stack trace:
#0 /home/slingbank/public_html/init.php(1611): IPS\IPS::init()
#1 /home/slingbank/public_html/index.php(12): require_once('/home/slingbank...')
#2 {main}
  thrown in /home/slingbank/public_html/init.php on line 563
[10-Jun-2023 13:08:27 UTC] PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /home/slingbank/public_html/applications/rules/sources/Secure/Application.php(2) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code on line 11
[10-Jun-2023 13:09:55 UTC] PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /home/slingbank/public_html/applications/rules/sources/Secure/Application.php(2) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code on line 11
[10-Jun-2023 13:10:08 UTC] PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /home/slingbank/public_html/applications/rules/sources/Secure/Application.php(2) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code on line 11
[10-Jun-2023 13:10:15 UTC] PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /home/slingbank/public_html/applications/rules/sources/Secure/Application.php(2) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code on line 11
[10-Jun-2023 13:12:56 UTC] PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /home/slingbank/public_html/applications/rules/sources/Secure/Application.php(2) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code on line 11
[10-Jun-2023 13:14:05 UTC] PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /home/slingbank/public_html/applications/rules/sources/Secure/Application.php(2) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code on line 11

1. Make sure that the mbstring module is installed and available on your server/webspace

http://www.php.net/manual/en/mbstring.installation.php

2. You'll have to uninstall the rules application which hadn't any upgrades since 2019

yes mbstring is installed and php 8 is selected, stuck on blank screen

when enabling display errors in php.ini and running the upgrade:

Fatal error: Array and string offset access syntax with curly braces is no longer supported in /home/slingbank/public_html/applications/rules/sources/Secure/Application.php(2) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code(1) : eval()'d code on line 11

 

does rules need to be disabled or removed? thanks for any suggestions

You can just disable it.

removed rules and was able to upgrade, thanks !