Workaround for Wonolog #81 (exception infinite recursion) (https://github.com/inpsyde/Wonolog/issues/81)

logging.php

<?php

namespace Site\Logging;

use Inpsyde\Wonolog;
use Monolog\Handler\SlackWebhookHandler;

// Needs to happen on loading mu-plugin.
// Do not use default PhpErrorController because of bug https://github.com/inpsyde/Wonolog/issues/81
Php_Error_Controller::register(); // needs to be called before bootstrap so PHP-ERROR is still registered.
$controller = \Inpsyde\Wonolog\bootstrap(null,
    Wonolog\USE_DEFAULT_HOOK_LISTENERS | Wonolog\USE_DEFAULT_PROCESSOR | Wonolog\USE_DEFAULT_HANDLER );

// [..further customization]

Php_Error_Controller.php

<?php


namespace Site\Logging;

use Monolog\Logger;
use Inpsyde\Wonolog\PhpErrorController as Base_Controller;
use Inpsyde\Wonolog\Data\Log;
use Inpsyde\Wonolog\Channels;

class Php_Error_Controller extends Base_Controller {

    public mixed $previous_exception_handler = null;

    	/**
	 * Uncaught exception handler.
	 *
	 * @param  \Throwable $e
	 *
	 * @throws \Throwable
	 */
	public function on_exception( $e ) {

		// Log the PHP exception.
		do_action(
			\Inpsyde\Wonolog\LOG,
			new Log(
				$e->getMessage(),
				Logger::CRITICAL,
				Channels::PHP_ERROR,
				[
					'exception' => get_class( $e ),
					'file'      => $e->getFile(),
					'line'      => $e->getLine(),
					'trace'     => $e->getTraceAsString(),
				]
			)
		);

		// after logging let's reset handler and throw the exception
		// restore_exception_handler();
        // Fixes https://github.com/inpsyde/Wonolog/issues/81
        set_exception_handler($this->previous_exception_handler);
		throw $e;
	}

    /**
     * Fixes https://github.com/inpsyde/Wonolog/issues/81
     * @param mixed $error_types
     * @return void
     */
    public static function register($error_types = NULL) {
        is_int( $error_types ) or $error_types = E_ALL | E_STRICT;

		$controller = new static();
		register_shutdown_function( [ $controller, 'on_fatal', ] );
		set_error_handler( [ $controller, 'on_error' ], $error_types );
		$previous_exception_handler = set_exception_handler( [ $controller, 'on_exception', ] );
        $controller->previous_exception_handler = $previous_exception_handler;

		// Ensure that channel Channels::PHP_ERROR error is there
		add_filter(
			Channels::FILTER_CHANNELS,
			function ( array $channels ) {

				$channels[] = Channels::PHP_ERROR;

				return $channels;
			},
			PHP_INT_MAX
		);
    }
}