Support PHP 8.0 in all repositories

[bobbingwide]

PHP version 8.0 was released in November 2020. The current version is PHP 8.0.2. I need to be able to support PHP 8.0 as well as supported versions of PHP.

This issue is a Blessed task ( ie long running task ) to update my plugins and themes to run with no Notices, Warnings or worse when run with PHP 8

First thing to do is to enable PHP 8 in my development environment and an easy switch from PHP 7 to PHP 8.

[bobbingwide]

Warning: Undefined array key "8.0" in C:\apache\htdocs\wordpress\wp-content\plugins\oik-bwtrace\admin\class-oik-trace-info.php on line 231.

This is for oik-bwtrace.

[bobbingwide]

There were a lot of Deprecated notices from s.b/bw - which makes use of shared libraries. The messages were about optional parameters before mandatory parameters. Solution in most cases was

• to remove the optional value - which was basically a hint,
• Update the Copyright date
• Update the semantic version number
• Distribute the change to the other plugins/ themes that use the shared library

[bobbingwide]

Deprecated: Required parameter $post follows optional parameter $excerpt in C:\apache\htdocs\wordpress\wp-content\plugins\oik-shortcodes\oik-shortcodes.php on line 99

Deprecated: Required parameter $dependencies follows optional parameter $plugin in C:\apache\htdocs\wordpress\wp-content\plugins\oik\libs\oik-depends.php on line 235

Deprecated: Required parameter $index follows optional parameter $array in C:\apache\htdocs\wordpress\wp-content\plugins\oik-bwtrace\libs\class-bobbcomp.php on line 66

[bobbingwide]

Can't run PHPUnit8 with PHP 8. Is it time to upgrade to PHPUnit 9, which was released on 7 Feb 2020 - yes, over a year ago.

pu 

c:\apache\htdocs\phpLibraries\phpunit\phpunit-8.4.1.phar

Parse error: syntax error, unexpected token "match", expecting identifier in phar://C:/apache/htdocs/phpLibraries/phpunit/phpunit-8.4.1.phar/phpunit/Framework/MockObject/Builder/Match.php on line 17

[bobbingwide]

The output from running wp-top12's downloads.php routine with the reports parameter produced strange results today. This may not have been a PHP 8.0 problem. Probably something to do with not having run the reset() method.

[bobbingwide]

It looks like I'm not the only person who set default values for optional parameters which were followed by required parameters.
Jetpack produced a whole host of messages.

Other messages have come from Visualizer returning bool from a usort() callback function.

[bobbingwide]

phpMyAdmin v4.9.5 produced a number of Deprecated messages as well.

Deprecation Notice in .\vendor\twig\twig\src\Node\IncludeNode.php#25
Required parameter $lineno follows optional parameter $only

Deprecation Notice in .\libraries\classes\Di\ReflectorItem.php#82
Method ReflectionParameter::getClass() is deprecated

[bobbingwide]

I've updated quite a few plugins with the shared library updates: oik-blocks, oik-css, uk-tides